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Db2 700�?701考试全真题库�Q�全国首发题库－全国�W�一

亮剑 — Tue, 16 Jan 2007 02:05:00 GMT

摘要: B1 �Q? Which of the following in a Visual Explain graph indicates that intra-partition parallelism is being used in the access plan? A... 阅读全文

亮剑 2007-01-16 10:05 发表评论

Db2 700�?701考试全真题库�Q�全国首发题库－全国�W�一

亮剑 — Tue, 16 Jan 2007 02:05:00 GMT

A   1. DB2 Enterprise Server Edition (ESE) is running on Linux and needs to validate the userids and passwords on the z/OS server for the DB2 clients connecting to DB2 for z/OS.   Which of the following authentication levels satisfies this while providing authentication for other DB2 clients at the DB2 ESE server?
A.    DCS
B.    DRDA
C.    HOST
D.    CLIENT
E.    SERVER

C   2. To permit all users from any DB2 UDB client to connect to the database, which of the following is required in the database's instance?
A.    Set trust_clntauth = Client, trust_allclnts=No
B.    Set trust_clntauth = Server, trust_allclnts=No
C.    Set trust_clntauth = Client, trust_allclnts=Yes
D.    Set trust_clntauth = Server, trust_allclnts=Yes}

C   3. A DB2 UDB server has 64-bit UNIX installed. Which of the following is required to update a 32-bit instance to a 64-bit instance after installing the 64-bit DB2 UDB code?
A. Issue the db2icrt command
B. Issue the db2start command
C. Issue the db2iupdt command
D. Issue the db2iconv command

D   3. In which of the following locations must userids and passwords be defined if using authentication SERVER?
A.   The node directory on the server
B.   The system catalog on the server
C.   The PASSWORD table in the database
D.   The operating system on the server

D   4. Given an application with the embedded static SQL statement:
     INSERT INTO admin.payroll (employee, salary) VALUES ("Becky Smith",80000)
Which of the following privileges must a user hold to run the application?
A.   ALTER on the table
B.   INSERT on the table
C.   DBADM on the database
D.   EXECUTE on the package

D   5.AUTHENTICATION=SERVER_ENCRYPT allows DB2 to encrypt which of the following?
A.   data
B.   userid
C.   password
D.   userid and password

C   6. Which of the following allows the user "manager" (who is a regular user) to control access to schema "city"?
A.   CREATE SCHEMA city RESTRICT manager
B.   CREATE SCHEMA city GRANT TO manager
C.   CREATE SCHEMA city AUTHORIZATION manager
D.   CREATE SCHEMA city, when logged on as user "manager"}

E   7. Which of the following is required to use the IMPORT utility to import data into a table?
A.   SYSCTRL authority
B.   LOAD authority on the table
C.   ALTER privilege on the table
D.   IMPORT authority on the table
E.   INSERT privilege on the table

D   8. Which of the following authorities can be used to roll forward through database logs, but NOT restore a backup image into a new database?
A.   DBADM
B.   SYSADM
C.   SYSCTRL
D.   SYSMAINT

DE 9. Which two of the following identify which users have SYSCTRL authority?
A.   The node directory
B.   The system catalog
C.   The database configuration
D.   The operating system security
E.   The database manager configuration

C   10. Given the following statement:
   "DROP TABLE payroll.employee"
returns the following message:
    SQL0551N "USER1" does not have the privilege to perform operation
   "DROP" on object "PAYROLL.EMPLOYEE." SQLSTATE=42501
Which of the following will correct the situation?
A.   GRANT DROP AUTHORITY TO user1
B.   GRANT DROPIN ON SCHEMA user1 TO user1
C.   GRANT DROPIN ON SCHEMA payroll TO user1
D.   GRANT DROPIN ON SCHEMA employee TO user1

B   11.Given an application with the embedded static SQL statement:
INSERT INTO admin.payroll (employee, salary) VALUES ("Joe Smith",30000)
Which of the following table privileges must be held on admin.payroll to successfully bind the application?
A.   ALTER
B.   INSERT
C.   UPDATE
D.   BINDADD
E.   EXECUTE

A   12. An administrator issues the following statement:
GRANT ALTER ON TABLE address TO smith
After the statement is completed, which of the following actions can the user SMITH perform?
A.   Add constraints to the table
B.   Issue ALTER TRIGGER on the table
C.   Drop columns from the ADDRESS table
D.   Decrease the size of columns in the table

A   13. Which of the following can be done by a user who is granted the CONTROL privilege on an INDEX?
A.    Drop the index
B.    Alter the index
C.    Add columns to the index
D.    Create an index extension on the index

C   14. Which of the following actions will occur when issuing the command FORCE APPLICATION ALL?
A.    No new database connections are allowed
B.    Uncommitted units of work are committed
C.    Uncommitted units of work are rolled back
D.    Disconnect warning messages are sent to connected users

CE 14. Which two of the following must be done in order to allow DB2 databases on a server to be detected by DB2 clients?
A.    Run the Configuration Assistant at the database server
B.    Set AUTHENTICATION=CLIENT in the database manager configuration
C.    Ensure the database configuration parameter DISCOVER_DB is set to ENABLE
D.    Ensure the database manager configuration parameter DISCOVER is set to ENABLE
E.    Ensure the database manager configuration parameter DISCOVER_INST is set to ENABLE

D   15. Which of the following must be set to restrict clients from being able to discover any DB2 instances on a server?
A.    DISCOVER_DB parameter to DISABLE
B.    DISCOVER_INST parameter to DISABLE on a DB2 instance
C.    DB2 Administration Server configuration parameter SEARCH to DISABLE
D.    DB2 Administration Server configuration parameter DISCOVER to DISABLE

B   16. There is an instance on a server that needs to be discovered. The two databases in the instance are PAYROLL and CERTIFY. The PAYROLL database should not be seen. Which of the following will meet this requirement?
A.    Set the DAS configuration parameter DISCOVER to DISABLE.
Set the DISCOVER_DB parameter in the CERTIFY database configuration file to ENABLE.
B.    Set the DAS configuration parameter DISCOVER to SEARCH.
Set the DISCOVER_DB parameter in the PAYROLL database configuration file to DISABLE.
C.    Set the DAS configuration parameter DISCOVER to SEARCH.
Set the DISCOVER_INST parameter in the PAYROLL database configuration file to DISABLE.
D.    Set the DAS configuration parameter DISCOVER to DISABLE.
Set the DISCOVER_INST parameter in the CERTIFY database configuration file to ENABLE.}

A   17. The status of jobs scheduled by the Task Center can be monitored using which of the following?
A.    Journal
B.    Health Center
C.    Snapshot Monitor
D.    Information Catalog Center}

A   18. {When scheduled using the Task Center, all of the following actions can be specified to take place upon completion or failure of the task, EXCEPT:
A.    Create a new task.
B.    Send an email or page.
C.    Cancel other scheduled tasks.
D.    Re-run the task that just completed.

B   19. What value should the NOTIFYLEVEL configuration parameter have in order to capture all notification messages?
A.5   B.4    C. 3    D. -1

B   20. Given the following notification message:
   *
2002-02-05-03.14.38.559911   Instance:db2inst1   Node:000
PID:89198(db2agent (DB2PROD ))
Appid:*LOCAL.db2inst1.020205091435
buffer pool services sqlbStartPoolsErrorHandling Probe:39
ADM6080E The tablespace "ID" (ID "3"), was put OFFLINE and in
ROLLFORWARD_PENDING. Tablespace state is 0x"00004080". 1

*
Which database does this message apply to?
A. ID     B. DB2PROD    C. db2inst1    D. db2agent

C   21. Which of the following can have their default location changed when issuing the CREATE DATABASE command?
A. Log files   B. User tables   C. Table spaces D.    Stored procedures

A   22. Given the following command:
   CREATE DATABASE payroll ALIAS paynew ON path/drive
     USING CODESET codeset
     TERRITORY territory
     COLLATE USING IDENTITY
How is character data compared within the database?
A.    Byte for byte
B.    Based on the codeset
C.    Based on the codepage
D.    Based on the territory

D   23. After a successful table space restore command, which of the following states will the table space be in?
A.    Restore pending
B.    Recovery pending
C.    Restore in progress
D.    Roll forward pending

B   24. Which of the following statements is required to register a federated database source?
A.    CREATE VIEW
B.    CREATE WRAPPER
C.    CREATE TRANSFORM
D.    CREATE TYPE MAPPING

A   25. Given the following statements:
CREATE TABLE T1 (COL1 INT NOT NULL PRIMARY KEY, COL2 CHAR, COL3 CLOB (40K), COL4 VARCHAR(10));

CREATE UNIQUE INDEX IND_1 ON T1 (COL1, COL2) INCLUDE (COL3) ALLOW REVERSE SCANS;
The CREATE UNIQUE INDEX statement will fail because:
A.    LOB columns cannot be used in an index.
B.    A unique index cannot include an existing primary key.
C.    Reverse scans are not supported on multi-column indexes.
D.    INCLUDE columns are not supported in indexes that support REVERSE SCANS.

C   26. Given the following DDL statements:
       CREATE TABLE PERSON OF PERSON_T
              (REF IS OID USER GENERATED)
       CREATE TABLE EMP OF EMP_T UNDER PERSON
              INHERIT SELECT PRIVILEGES
       CREATE TABLE STUDENT OF STUDENT_T UNDER PERSON
              INHERIT SELECT PRIVILEGES
       CREATE TABLE STAFF (COL1 INT, COL2 INT)
and
       INSERT one row into PERSON
       INSERT one row into EMP
       INSERT one row into STUDENT
       INSERT two rows into STAFF
How many rows will be returned after issuing the following SQL statement?
SELECT * FROM PERSON?
A. 1   B. 2   C. 3    D. 5   E.    10

B   27. Given the following DDL statements:
       CREATE TABLE person OF person_t
              (REF IS OID USER GENERATED)
       CREATE TABLE emp OF emp_t UNDER person
              INHERIT SELECT PRIVILEGES
       CREATE TABLE student OF student_t UNDER person
              INHERIT SELECT PRIVILEGES
Which of the following will drop all tables associated with the hierarchy?
A.    Dropping the PERSON table
B.    Dropping the table hierarchy called PERSON
C.    Deleting all rows from the person hierarchy
D.    Dropping all columns from the subtables STUDENT and EMP

CE 28. Which two of the following objects can be changed with an ALTER statement?
A.    Index
B.    Trigger
C.    Procedure
D.    Constraint
E.    Table space

B   30. Which of the following table space characteristics for a System Managed (SMS) table space can be modified with the ALTER TABLESPACE statement?
A.    Extent size
B.    Prefetch size
C.    Size of an existing container
D.    Location of an existing container

C   31. Which of the following is an advantage of an SMS table space?
A.    The table space can use raw devices.
B.    A table can be split across multiple table spaces.
C.    Space for the objects in the table space is not allocated until required.
D.    The size of the containers in the table space can be changed using the ALTER TABLESPACE statement.}

B   32. In a single partition database, which of the following commands or statements allows containers to be added to an SMS table space?
A.    BACKUP DATABASE
B.    RESTORE DATABASE
C.    ALTER TABLESPACE
D.    ADD TABLESPACE CONTAINER

A   33. Which of the following kinds of table spaces allows LOBs to use the filesystem cache?
A.    An SMS table space
B.    A user temporary table space
C.    A system temporary table space
D.    A DMS table space created with raw devices

A   34. Which of the following commands will add the same amount of additional space for each container in a DMS table space named TSP1?
A.    ALTER TABLESPACE tsp1 EXTEND ...
B.    ALTER TABLESPACE tsp1 ENLARGE ...
C.    ALTER TABLESPACE tsp1 ADD NEW STRIPE SET ...
D.    ALTER TABLESPACE tsp1 BEGIN NEW STRIPE SET ...

B    35. Given the following statement:
CREATE TABLESPACE dms1 MANAGED BY DATABASE USING
    (FILE 'dms01' 1024K)
How many pages will be created for the table space?
A. 128    B. 256   C. 512    D.    1024

AC   36. Which two of the following ALTER TABLESPACE options can be used to reduce the amount of space associated with a DMS table space?
A.    RESIZE
B.    EXTEND
C.    REDUCE
D.    ADD TO STRIPE SET 1
E.    BEGIN NEW STRIPE SET

B    37. A DBA has created three related backup tasks in the Task Center. Which of the following tools can be used to edit the tasks?
A.    Journal
B.    Command Center
C.    Control Center
D.    Development Center

A    38. For tasks created and successfully executed in the Task Center, which of the following is the default output location?
A.    Journal
B.    System console
C.    DB2 Command Window
D.    User specified file

D    39.   Given the following table definitions:
        CANDIDATE
        ---------
        CandidateName               CHAR(20) NOT NULL
        CandidateID                 INTEGER NOT NULL
        Address                     CHAR(100) NOT NULL
        CandidatePhoto              BLOB(1M)

        TEST_TAKEN
        ----------
        TestName                    CHAR(50) NOT NULL
        TestNumber                  INTEGER NOT NULL
        TestScore                   INTEGER NOT NULL
        CandidateID                 INTEGER NOT NULL
And the following information:
· Candidate IDs are unique in the CANDIDATE table
· Requirement to select all candidate IDs who have taken test number 701
Assuming no other indexes, which of the following indexes should be created to support the requirement?
A.    Primary key on candidate (CandidateID) allowing reverse scans
B.    Unique index on candidate (CandidateID) disallowing reverse scans
C.    Clustered index on test_taken (CandidateID) allowing reverse scans
D.    Index on test_taken (CandidateID, TestNumber) allowing reverse scans

B    40. A table is experiencing frequent inserts.    Which of the following options can defer how frequently DB2 must allocate additional index pages?
A.    CLUSTER
B.    PCTFREE
C.    MINPCTUSED
D.    SPECIFICATION ONLY

C    41. What is the purpose for creating a primary key on a table?
A.    To ensure duplicate key values are entered
B.    To support creation of a table check constraint
C.    To support referential integrity between tables
D.    To provide free space on each index page for new data

C    42. Given the table definitions:
CREATE TABLE employees
   (employee_num INT NOT NULL PRIMARY KEY,
       employee_name CHAR(20));

CREATE TABLE pc
   (serial_num INT NOT NULL PRIMARY KEY,
       model_num INT,
       owner_id INT,
    FOREIGN KEY (owner_id)
    REFERENCES employees ON UPDATE RESTRICT);
and the statement:
UPDATE pc SET owner_id = 1000 WHERE serial_num = 7654
Which of the following conditions must be met before the update will be successful?
A.    Owner_id 1000 must exist in the pc table.
B.    Owner_id 1000 must not exist in the pc table.
C.    Employee_num 1000 must exist in the employees table.
D.    Employee_num 1000 must not exist in the employees table.

B    43. Given statements issued in the following sequence:
CREATE TABLE tab1 (col1 INT, col2 INT);
CREATE VIEW v1 AS SELECT * FROM tab1;
ALTER TABLE tab1 ADD col3 INT;

and contents of tab1:
COL1   COL2    COL3
------ ------ ------
       1      2      3
       2      3      4
What is the result of issuing the following statement?
SELECT * FROM V1
A.    SQL0204N "V1" is an undefined name.
B.    COL1 COL2
----- -----
                1     2
                2     3
C. COL1   COL2    COL3
------ ------ ------
              1      2      3
              2      3      4
D.    SQL0575N View or materialized query table "V1" cannot be used because it has been marked inoperative.

A    44. Which of the following DB2 objects allows multiple users to access data in a table with each user only being able to access certain portions of the data?
A.    Views
B.    Summary Tables
C.    Dimension Tables
D.    Table Constraints

BC   45. Given the following DDL statements:
CREATE VIEW v1 AS SELECT col1 FROM tab1 WHERE col1>10
CREATE VIEW v2 AS SELECT col1 FROM v1 WITH CHECK OPTION
CREATE VIEW v3 AS SELECT col1 FROM v2 WHERE col1<100
Which two of the following statements will fail?
A.    INSERT INTO v1 VALUES (5)
B.    INSERT INTO v2 VALUES (5)
C.    INSERT INTO v3 VALUES (5)
D.    INSERT INTO v3 VALUES (100)
E.    INSERT INTO v3 VALUES (200)

C    46. Given the following table:
TAB1
NAMES                   SALARIES
-----------------       -------------------
Joe Smith                32,456
Mary James               56,010
Pete Jones              155,900
David Parson             21,500
and the following statements:
1) REVOKE SELECT ON TABLE tab1 FROM PUBLIC
2) REVOKE SELECT ON TABLE tab1 salaries FROM PUBLIC
3) GRANT SELECT ON tab1v TO PUBLIC
4) CREATE VIEW tab1v AS SELECT names FROM tab1
5) CREATE VIEW tab1v AS SELECT salaries FROM tab1
Which of the statements and in what order must they be called to prevent normal users from seeing SALARIES, but allow them to see NAMES?
A.    1
B.    2
C.    1,4,3
D.    1,5,3

C    26.Which of the following database configuration parameter settings can improve the buffer pool hit ratio?
A.    The index sort flag = YES (INDEXSORT)
B.    The catalog cache size > 0 (CATALOGCACHE_SZ)
C.    The number of I/O servers > 0 (NUM_IOSERVERS)
D.    The percentage of lock list per application> 0 (MAXLOCKS)

A    27. Given an application that contains embedded static and dynamic SQL.
Which of the following will capture explain information for all statements in the application that can be examined with both Visual Explain and db2exfmt?
A.    The EXPLSNAP ALL and EXPLAIN ALL bind options
B.    The EXPLSNAP YES and EXPLAIN YES bind options
C.    The SET CURRENT EXPLAIN SNAPSHOT YES and SET CURRENT EXPLAIN MODE YES statements
D.    The SET CURRENT EXPLAIN SNAPSHOT ALL and SET CURRENT EXPLAIN MODE ALL statements}

C    28.    Which of the following commands can be issued in a Command Line Processor (CLP) session to capture explain information for subsequent SQL statements that can be formatted using db2exfmt?
A.    SET CURRENT SNAPSHOT YES
B.    SET CURRENT QUERY EXPLAIN
C.    SET CURRENT EXPLAIN MODE EXPLAIN
D.    SET CURRENT EXPLAIN SNAPSHOT EXPLAIN

A    29. Given the following export statement:
EXPORT TO SAMPLE.DEL OF DEL SELECT * FROM SAMPLE
Which of the following column delimiters will be used in the output file after issuing this statement?
A.    , (comma)
B.      (blank)
C.    ; (semicolon)
D.    " (double quote)

B    30. Which of the following is a feature of the IMPORT utility?
A.    Views can be created
B.    Datalink columns can be imported
C.    System catalog tables can be targets
D.    REFRESH IMMEDIATE summary tables can be targets

D    31.   Which of the following commands loads data into a table and updates the catalog statistics for that table?
A.    LOAD FROM data.ixf OF IXF INSERT INTO dept1.assets STATISTICS YES
B.    LOAD FROM data.ixf OF IXF CREATE INTO dept1.assets STATISTICS YES
C.    LOAD FROM data.ixf OF IXF UPDATE INTO dept1.assets STATISTICS YES
D.    LOAD FROM data.ixf OF IXF REPLACE INTO dept1.assets STATISTICS YES

BE   37. Which two of the following are possible with LOAD?
A.    Triggers are fired
B.    Statistics are gathered
C.    The target can be a nickname
D.    Loaded data is captured for replication
E.    Loaded data is copied for roll forward recovery

DE   32. Which two of the following DB2 commands update information used by the optimizer when choosing an access path?
A.    REORG
B.    IMPORT
C.    REBIND
D.    RUNSTATS
E.    CREATE INDEX

C    33. Given the following data from SYSCAT.TABLES:
TABNAME       CARD   NPAGES FPAGES OVERFLOW

T1            1242       84      85         0
ORG           8000      157     157         2
SALES          844       19      19        45
DEPARTMENT     767       23      23         5
Which of the following tables will benefit most from being reorganized?
A.    T1
B.    ORG
C.    SALES
D.    DEPARTMENT

AC   34. When looking at SYSCAT.TABLES, which two of the following columns can indicate it is appropriate to run RUNSTATS?
A.     CARD
B.     CLUSTERED
C.     STATS_TIME
D.     CHECKCOUNT
E.    CREATE_TIME

C    35. The FLUSH PACKAGE CACHE statement should be run after issuing which of the following commands?
A.    REORG
B.    DB2RBIND
C.    RUNSTATS
D.    CREATE TABLE UPDATE DATABASE CFG USING ...

A     36. Which of the following is supported by DB2MOVE?
A.    Exporting and importing LOBs
B.    Moving table space definitions
C.    Moving logs to a stand-by database
D.    Exporting and importing trigger definitions

A     37.Which of the following can the DB2 Design Advisor recommend?
A.    Indexes for provided workload
B.    Buffer pool assignments for table spaces
C.    Optimal values for database memory configuration
D.    Referential integrity constraints for selected tables

B     38. Which of the following must occur to restore a database which has table space containers on invalid drives/devices?
A.    Use roll forward recovery on the database
B.    Use the REDIRECT option to restore the database
C.    Use the RESTART DATABASE command on the database
D.    Use the recovery history file to restore the database

BD    39. A backup image of the MYDB database exists in the directory. The following restore command was run:
RESTORE DATABASE mydb FROM INTO sample NEWLOGPATH REPLACE EXISTING
Which two of the following reflect the state of the SAMPLE database after the restore?
A.    The database manager configuration file is over-written.
B.    The system catalog tables for the database are replaced.
C.    The LOGPATH database configuration parameter is retained.
D.    The database configuration file for SAMPLE is over-written.
E.    The authentication type for the database is reset to the default.
C     40. If a user accidentally drops a table and commits work, which of the following recovers the data from the dropped table?
A.    Once committed, the data from the dropped table cannot be recovered
B.    Obtain the transaction ID for the DROP TABLE statement and roll back the transaction
C.    If DROPPED TABLE RECOVERY is enabled for the table space, restore table space, and roll forward
D.    If DROPPED TABLE RECOVERY is not enabled for the table space, enable DROPPED TABLE RECOVERY, and restore table space and roll forward
A     41.To minimize database restart time due to rebuilding indexes, which of the following is the correct setting of the INDEXREC configuration parameter?
A.    ACCESS
B.    RESTART
C.    REBUILD
D.    DEFERRED

A     42. Given the following information:
Database manager configuration parameter INDEXREC = RESTART
Database configuration parameter INDEXREC = SYSTEM
When will invalid indexes be rebuilt?
A.    When the database restarts
B.    When the last connection terminates
C.    When the invalid index is first accessed
D.    When the REORG INDEXES command is issued}

B     43.Which of the following is required to support infinite active log space?
A.    USEREXIT = ON, LOGSECOND = 0
B.    USEREXIT = ON, LOGSECOND = -1
C.    LOGRETAIN = RECOVERY, LOGSECOND = 0
D.    LOGRETAIN = RECOVERY, LOGSECOND = -1

C     44. Given the following DB2DIAG.LOG entry:
"Crash Recovery is needed."
Which of the following could be the cause for this entry?
A.    A load failed
B.    A restore failed
C.    A hardware problem
D.    A rollforward is required

BC    45. Given the following information:
LIST HISTORY BACKUP ALL FOR

SQL2160W A damaged recovery history file has been replaced. Processing continued.
Which two of the following can be used to determine previous recovery activity on the database?
A.    Re-issue the LIST HISTORY BACKUP command
B.    Restore the database from previous backup
C.    Restore recovery history file from previous backup
D.    Restore just the catalog table space from a previous backup
E.    Copy the DB2RHIST.ASC file from another database on the same instance

A     46. Which combination of database configuration parameters limits the database to version recovery only?
A.    LOGRETAIN=NO USEREXIT=NO
B.    LOGRETAIN=NO USEREXIT=YES
C.    LOGRETAIN=RECOVERY USEREXIT=NO
D.    LOGRETAIN=RECOVERY USEREXIT=YES

AE      47.Which two of the following are only possible using a redirected restore?
A.    Redefining table space containers
B.    Replacing a damaged recovery history file
C.    Recovering table spaces in roll-forward pending
D.    Specifying an alternate log path for roll forward
E.    Restoring the database onto a different server with the same operating system}

A     48. Which commands are required to restore a Version 7 backup image of the database SAMPLE to a Version 8 instance?
A.    RESTORE DATABASE sample FROM INTO sample;
B.    RESTORE DATABASE sample FROM INTO sample;
DB2IMIGR;
C.    RESTORE DATABASE sample FROM INTO sample;
MIGRATE DATABASE sample;
D.    RESTORE DATABASE sample FROM INTO sample;
DB2IMIGR;
MIGRATE DATABASE sample;

D     49. An online database backup was started for database MYDB at 1 AM and completed at 3 AM. Which of the following commands will restore the database from this backup image and allow connections to the database?
A.    RESTORE DB mydb FROM ;
B.    RESTORE DB mydb FROM WITHOUT ROLLING FORWARD;
C.    RESTORE DB mydb FROM ; ROLLFORWARD DATABASE mydb TO 1AM AND STOP;
D.    RESTORE DB mydb FROM ; ROLLFORWARD DATABASE mydb TO END OF LOGS AND STOP;}

BD    50. Given the following information:
· A full database backup of DB1 was taken at 1:00PM.
· A table space TS1 was backed up at 1:15PM.
· A table in TS1 was dropped at 2:00PM.
Which two of the following commands are valid after restoring table space TS1 from the full database backup taken at 1:00PM?
A.    ROLLFORWARD DATABASE db1 TO 1:15PM
B.    ROLLFORWARD DATABASE db1 TO 2:30PM
C.    ROLLFORWARD TABLESPACE ts1 TO 2:30PM
D.    ROLLFORWARD DATABASE db1 TO END OF LOGS
E.       ROLLFORWARD TABLESPACE ts1 TO END OF LOGS
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7、db2 700认证考试官方模拟试题1套－��d��6章，�늛�全部章节
8、IBM db2数据�?00-704全部考试�U�目的考试大纲
/***************db2 701考试认证资料********************/
1、IBM db2 701数据库认证培训课件培训��灯片�Q�来自官�?�l�对权威
2、db2 701 官方培训教程
3、db2 701 全真�?10�?�Q�覆盖率100%�Q�非常全
4�?db2 701 模拟试题 7套，我的是最全的
��M��一句话�Q�绝对超��|��含金量高�Q�全国首发！不过的全额退�ƾ！一口�h�Q?00�?br />联系人：张先生，电话�Q?3899826736�Q�borlanzy@21cn.com

亮剑 2007-01-16 10:05 发表评论

Db2 700�?701考试全真题库�Q�全国首发题库－全国�W�一

亮剑 — Tue, 16 Jan 2007 02:04:00 GMT

DB2 UDB V8.1 for Linux, UNIX, and Windows Database Administration
Server Management: Sample Questions
c1) Which of the following command is used to list all the supported DB2 registry variables?
a. db2set -l
b. db2set -all
c. db2set -lr
d. db2set -gl

c2) From the DB2 server DB2PROD, the following DB2 registry variable is set: DB2COMM=TCPIP,NETBIOS

You have performed the following to set up each of the supported protocol.
1. db2 update dbm cfg using svcename 50000
2. db2stop
3. db2start

However, you receive the following error when the instance is starting up.
01/24/2005 15:52:35     0   0   SQL5043N Support for one or more
communications protocols failed to start successfully. However, core
database manager functionality started successfully.

Which of the following will fix the problem?
a. Append db2icdb2 50000 in the services file
b. db2 update dbm cfg using svcename db2icdb2
c. db2 update dbm cfg using nname DB2PROD
d. Append DB2PROD 10.11.12.14 in the services file

bd3) Which DB2 tool can be used to retrieve the current DB2 registry variables
settings? Choose all that apply.
a. Control Center
b. Configuration Assistant
c. Command Editor
d. Command Line Processor

c4) Which of the following command will prevent a DB2 server from being discovered by the DB2 Discovery tool?
a. db2 update admin configuration using discover search
b. db2 update database manager configuration using discover_inst disable
c. db2 update admin configuration using discover disable
d. db2 update database configuration for sample using discover_db disable

d5) The DB2 Task Center can be used to schedule and run which type of script?
a. JCL script
b. OS shell script
c. MVS shell script
d. All of the above

b6) Using the DB2 Task Center, if a task is completed successfully, which of the following can NOT be performed automatically by the Task Center?
a. Run another task
b. Modify this task
c. Delete this task
d. Schedule another task to run

cd7) Which of the following will give INSERT privilege on the employee table to db2user? Choose all that apply.
a. db2 update dbm cfg using SYSADM db2user
b. db2 update dbm cfg using SYSCTRL db2user
c. db2 grant CONTROL ON employee to PUBLIC
d. db2 grant DBADM ON DATABASE to PUBLIC

b8) Given the following authentication and parameter settings.
At the DB2 server: AUTHENTICATION = SERVER
                              TRUST_ALLCLNTS = YES
                              TRUST_CLNTAUTH = CLIENT

If a user is trying to connect to the DB2 server from an untrusted client and no user ID and password are supplied in the CONNECT command, where would authentication take place?
a. Client
b. Server

b9) Given the following authentication and parameter settings.
At the DB2 server: AUTHENTICATION = CLIENT
                              TRUST_ALLCLNTS = YES
                              TRUST_CLNTAUTH = SERVER

If a user is trying to connect to the DB2 server from a trusted client and he/she supplies a user ID and password in the CONNECT command, where would authentication take place?
a. Client
b. Server

c10) Over 50 configuration parameters can be set online. However changes to those that are not online configurable will not take in effect immediately. Which of the following can be used to view the deferred value?
a. db2 get dbm cfg
b. db2 get dbm cfg show delay value
c. db2 get dbm cfg show detail
d. db2 get dbm cfg show defer
DB2 UDB V8.1 for Linux, UNIX, and Windows Database Administration
Answers:
1. c
2. c
3. b,d
4. c
5. d
6. b
7. c,d
8. b
9. b
10. c

Data Placement: Sample Questions

c1) Which table space characteristic can be altered for a SMS table space using the ALTER TABLESPACE command?
a. Change the location of an existing container
b. Change the size of an existing container
c. Modify the prefetch size
d. Modify the extent size

ad2) Which of the following can be used as a container for a DMS table space? Choose all that apply.

a. Raw device
b. Logical volume
c. Directory
d. File

d3) Which of the following is NOT a characteristic of a DMS table space?
a. Containers can be extended, reduced, or resized dynamically
b. The table space capacity is limited only by the physical storage
c. Direct I/O is used for DMS raw manipulation
d. Each table in a table space is given its own file name used by all containers. The file extension denotes the type of the data stored in the file.

d4) Which DB2 command will show you how many pages are used in a DMS table space?
a. show tablespaces with detail
b. list tablespaces
c. list tablespaces containers
d. list tablespaces show detail

c5) Which of the following is NOT true?
a. Table spaces can be in 4K, 8K, 16K, or 32K page size
b. Table space is composed of one or more containers
c. An extent can be used by more than one database object
d. Data is allocated by extents within containers

cd6) Which of the following command will give INSERT privilege on the employee table to db2user? Choose all that apply.
a. update dbm cfg using SYSADM db2user
b. update dbm cfg using SYSCTRL db2user
c. grant CONTROL ON employee to PUBLIC
d. grant DBADM ON DATABASE to PUBLIC

bd7) The DROP TABLESPACE fails. Which of the following is true? Choose all that apply.
a. Tables defined in the table space must be dropped first
b. The table space contains a table that spans on multiple table spaces
c. Some of the objects such as views, triggers, or packages stored in the table space are marked invalid
d. The table space contains a table that has the RESTRICT ON DROP attribute

abcd 8) Which of the following is true? Choose all that apply.
a. Size of a DMS table space can be extended
b. Size of a DMS table space can be reduced
c. Size of a DMS table space can be resized
d. A container can be dropped from a DMS table space

c9) When you create a database, which of the following task is NOT performed automatically?
a. The database recovery log is allocated
b. The database utilities are bound to the database
c. The statistics catalog tables are populated with statistics of all the tables and indexes in the database.
d. The database configuration file is created and the default values are set

c 10) What kind of data can NOT be stored in a LARGE table space?
a. Long or LOB data
b. Indexes
c. Temporary tables
d. Structured type columns

DB2 UDB V8.1 for Linux, UNIX, and Windows Database Administration
Answers:
1. c
2. a,d
3. d
4. d
5. c
6. c,d
7. b,d
8. a,b,c,d
9. c
10. c

Database Access: Sample Questions

b1) In the CREATE INDEX statement, which option tells DB2 to store rows physically close together based on the key values?
a. ascending
b. cluster
c. allow reverse scan
d. include

a2) Which of the following is NOT true about Type-2 indexes?
a. it can only be defined on tables with primary keys
b. Type-1 indexes can be converted to Type-2 indexes
c. allows online table reorg and online table load
d. improves concurrency due to the use of minimal next-key locking

c 3) Which of the following cannot be done using the Task Center?
a. run tasks
b. schedule tasks
c. create stored procedures
d. run scripts

b 4) What is NOT a characteristic of informational constraints?
a. faster performance
b. data is stored with the index key
c. query optimization can be enabled or disabled
d. allows invalid data to be inserted into the table

a 5) Which tool can be used to help you define a suitable index?
a. Design Advisor
b. Development Center
c. Health Center
d. Task Center

d6) In the CREATE INDEX statement, what is the PCTFREE clause used for?
a. to define the percentage of data which the index is defined on
b. to define a table constraint
c. to collect statistics for the index
d. to define the percentage of each index page to leave as free space when the index is built

b 7) How many clustering indexes can be defined on a table?
a. 0
b. 1
c. the number of columns in the table
d. no limit

a 8) Which is NOT a type of constraint which can be defined on a table?
a. sequential
b. informational
c. table check
d. referential

c9) What is an inoperative view?
a. a view which allows selects, but does not allow inserts or updates
b. a view which cannot be used in where clauses
c. a view that is not available for SQL statements
d. a view which does not contain any numeric data types

c10) When are system catalog tables created?
a. when the instance is created
b. the user creates the tables
c. when the database is created
d. when the first table is created

DB2 UDB V8.1 Linux, UNIX, Windows Database Administration
Answers:
1. b
2. a
3. c
4. b
5. a
6. d
7. b
8. a
9. c
10. c

Monitoring DB2 Activity: Sample Questions
b 1) Which DB2 tool can provide a point in time picture of a database?
a. event monitor
b. snapshot monitor
c. health center
d. memory visualizer

a 2) Which of the following is NOT a valid database snapshot monitor switch?
a. database
b. table
c. uow
d. statement

c3) Given the following command:

UPDATE DBM CFG USING diaglevel 4 DEFERRED

When will the new value for diaglevel take effect?
a. immediately
b. when all applications have disconnected from the database
c. when the instance is restarted
d. when the next application connects to the database

b 4) If the following commands are executed:

UPDATE DBM CFG USING DFT_MON_LOCK OFF
UPDATE MONITOR SWITCHES USING lock ON

And the DB2 instance is stopped and restarted, the monitor switch for the lock monitor will be?
a. ON
b. OFF

b5) If the following statements are executed:

CONNECT TO mydb
GET SNAPSHOT FOR ALL APPLICATIONS

An application snapshot will be taken for?
a. all applications currently connected to the database mydb
b. all applications currently connected to the instance
c. all applications in a 'Processing' status and currently connected to the database mydb
d. all applications in a 'Processing' status and currently connected to the instance

d6) What is NOT true about event monitors?
a. event monitors should be used to monitor specific events
b. an event monitor is created using the CREATE EVENT MONITOR command
c. event monitor output can be sent to tables
d. an event monitor cannot be started automatically when the database is started

bc 7) Which TWO text based explain facility can be used to capture the access plans for dynamic SQL statements?
a. db2exfmt
b. db2expln
c. dynexpln
d. db2eva

c 8) What is NOT a characteristic of the DB2 optimizer?
a. the database configuration parameter DFT_QUERYOPT is used to control the optimization level
b. the optimizer uses statistics collected in the SYSCAT.STATS catalog tables to determine how to retrieve data
c. the optimizer will automatically execute the RUNSTATS command to update the statistics
d. the optimizer can rewrite the SQL statement

b 9) Which DB2 tool can be used to monitor and record memory usage?
a. Governor
b. Memory Visualizer
c. Control Center
d. Health Center

a10) Which command can be used to take a database snapshot?
a. GET SNAPSHOT FOR DATABASE ON mydb
b. GET SNAPSHOT FOR DATABASE MANAGER
c. UPDATE MONITOR SWITCHES USING database ON
d. GET SNAPSHOT FOR ALL APPLICATIONS

DB2 UDB V8.1 Linux, UNIX, Windows Database Administration
Answers:
1. b
2. a
3. c
4. b
5. b
6. d
7. b,c
8. c
9. b
10. a
DB2 Utilities: Sample Questions
a 1) If you want to export data which contain commas, which of the following action should you specify in the EXPORT utility?
a. Specify MODIFIED BY coldel!
b. Specify MODIFIED BY chardel!
c. specify IXF filetype
d. specify WSF file type

c2) For IMPORT, EXPORT and LOAD, how can we capture and record all error and warning messages?
a. Use ERROR ON option
b. Use WARM ON option
c. Use MESSAGES option
d. Use LOBFILE option

c3) Which of the following option in the EXPORT command will generate a LOB location specifier?
a. LOBS
b. LOBFILE
c. LOBSINFILE
d. LOBSOUTFILE

c 4) Given the following LOB Location Specifier (LLS):

empresume.002.9610.1292

The actual LOB data begins at
a. 1292 bytes in the empresume.001 file
b. 9610 bytes in the empresume.001 file
c. 1292 bytes in the empresume.002 file
d. 9610 bytes in the empresume.002 file

d 5) To generate consistency points for a LOAD utility, which of the following option is correct?
a. ROWCOUNT 50
b. WARNINGCOUNT 50
c. SAVECOUNT 50
d. COMMITCOUNT 50

bd 6) Which of the following LOAD option can only be used with PC/IXF format? Choose all that apply.
a. INSERT
b. REPLACE_CREATE
c. REPLACE
d. CREATE
a7) At which phase of the LOAD utility are index keys and table statistics collected?
a. Load phase
b. Build phase
c. Delete Phase
d. Index copy phase

a 8) What will be stored in the dump file while data is being loaded to a table:
a. Rows that do not comply with the definition of the table
b. Rows that do not comply with the unique rule
c. Rows that do not comply with the foreign key rule
d. Rows that do not comply with the primary key rule

b9) Which column in the SYSCAT.TABLES indicates the status of each constraint
a. CHECK_COUNT
b. CONST_CHECKED
c. CHECK_DESC
d. CONST_COUNT

cd 10) Which of the following utilities can be used to collect data statistics? Choose all that apply.
a. REORG
b. IMPORT
c. REORGCHK
d. LOAD

DB2 UDB V8.1 for Linux, UNIX, Windows Database Administration
Answers:
1. a
2. c
3. c
4. d
5. c
6. b,d
7. a
8. a
9. b
10. c,d

Backup and Recovery: Sample Questions

a 1) Which of the following parameter values support crash recovery only?
a. LOGRETAIN=OFF, USEREXIT=OFF
b. LOGRETAIN=ON , USEREXIT=OFF
c. LOGRETAIN=OFF, USEREXIT=ON
d. LOGRETAIN=ON , USEREXIT=OFF

ab2) Which of the following can usually recover a database after a power failure situation?
a. AUTORESTART=OFF, and CONNECT a database
b. RESTORE
c. RESTORE and ROLLFORWARD
d. RESTART database

ab 3) What types of recovery are possible when the circular logging method is being used? Choose all that apply.
a. Crash recovery
b. Version recovery
c. Rollforward recovery

b4) In order to enable archival logging with manual archive, which of following command is correct?
a. DB2 UPDATE DBM CFG using LOGRETAIN ON
b. DB2 UPDATE DB CFG FOR database USING LOGRETAIN ON
c. DB2 UPDATE DBM CFG USING LOGRETAIN ON and DB2 UPDATE DBM CFG USING USEREXIT ON
d. DB2 UPDATE DB CFG FOR database USING LOGRETAIN ON and DB2 UPDATE DB CFG FOR database USING USEREXIT ON

c5) Which database configuration parameter can be used to prevent a "disk full" error from being generated when DB2 cannot create a new log file in the active log path?
a. LOGFILESIZ
b. LOG_FILE_SIZE
c. BLK_LOG_DSK_FULL
d. LOG_DSK_FULL

a6) Which of the following statement is not true for the following backup command:
BACKUP DATABASE SAMPLE ONLINE TO /dev/rdire1
a. Exclusive database lock is required
b. Database must have LOGRETAIN and/or USEREXIT enabled
c. Other database operations are allowed
d. Transaction log files are used to capture changes during the backup

a 7) What will happen if the following backup command is executed?
BACKUP DATABASE SAMPLE TABLESPACE
       (USERSPACE1, TEMPSPACE1) ONLINE
        TO /db2tbsp/backup1, /db2tbsp/backup2
a. The backup operation will fail
b. The backup operation will take an online backup for all tablespaces
c. The backup operation will take an online backup for all tablespaces and create two identical backup copies.
d. The backup operation will take an online backup for all tablespaces and create two different backup copies.
Explanation: You cannot backup up temporary tablespace.

d8) A delta copy is a copy of all data that has changed since
a. a full backup
b. an incremental backup
c. a delta backup
d. a full, incremental, or delta backup

d9) Which RESTORE option should be used if SET TABLESPACE CONTAINERS commands were to be issued?
a. WITHOUT ROLLING FORWARD
b. WITHOUT PROMPTING
c. NEWLOGPATH
d. REDIRECT

b10) Consider the following:
At T1, one takes a full database backup which contains tbsp1
At T2, one creates a table tb1 in tbsp1.
At T3, one inserts two rows in tb1.
At T4, one updates two rows in tb1.
When is the minimum point in time for table space tbsp1?
a. T1
b. T2
c. T3
d. T4

DB2 UDB V8.1 Linux, UNIX, Windows Database Administration
Answers:
1. a
2. d
3. a,b
4. b
5. c
6. a
7. a
8. d
9. d
10. b
IBM DB2 700�?01认证考试教材(中英�?及全真题库－全国�W�一
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宝贝含以下内�?
/***************db2 700认证考试认证资料********************/
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2、db2 700考试权威中文认证�Q�来自IBM会员在考试�U�宝书里面的全部截屏�Q�绝寚w��发；
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6、db2 700认证考试模拟试题(中文)2套，入门题库
7、db2 700认证考试官方模拟试题1套－��d��6章，�늛�全部章节
8、IBM db2数据�?00-704全部考试�U�目的考试大纲
/***************db2 701考试认证资料********************/
1、IBM db2 701数据库认证培训课件培训��灯片�Q�来自官�?�l�对权威
2、db2 701 官方培训教程
3、db2 701 全真�?10�?�Q�覆盖率100%�Q�非常全
4�?db2 701 模拟试题 7套，我的是最全的
��M��一句话�Q�绝对超��|��含金量高�Q�全国首发！不过的全额退�ƾ！一口�h�Q?00�?br />联系人：张先生，电话�Q?3899826736�Q�borlanzy@21cn.com

亮剑 2007-01-16 10:04 发表评论

Db2 700�?701考试全真题库�Q�全国首发题库－全国�W�一

亮剑 — Tue, 16 Jan 2007 02:03:00 GMT

Which of the following privileges is granted to PUBLIC on the system catalog views when a database is created?
          NONE
      SELECT
      UPDATE
      CONTROL

D Exclusive use is required on which of the following for a full database restore?
          The database
      The instance
      The catalog table space
      The table spaces being restored

DE   For which two of the following event types can event monitors be created?

(Select 2)
          SORTS
      LOCKS
      INSTANCES
      DEADLOCKS
      TRANSACTIONS
Events represent transitions in database activity: for instance, connections, deadlocks, statements, and transactions

Given the following notification message:
*
2002-02-05-03.14.38.559911 Instance:db2inst1 Node:000
PID:89198(db2agent (DB2PROD ))
Appid:*LOCAL.db2inst1.020205091435
buffer pool services sqlbStartPoolsErrorHandling Probe:39
ADM6080E The tablespace "ID" (ID "3"), was put OFFLINE and in
ROLLFORWARD_PENDING. Tablespace state is 0x"00004080". 1
*
Which database does this message apply to?

          ID
      DB2PROD
      db2inst1
      db2agent

B Which of the following is required to support infinite active log space?
          USEREXIT = ON, LOGSECOND = 0
      USEREXIT = ON, LOGSECOND = -1
      LOGRETAIN = RECOVERY, LOGSECOND = 0
      LOGRETAIN = RECOVERY, LOGSECOND = -1

C Given the following DB2DIAG.LOG entry:
     "Crash Recovery is needed."

Which of the following could be the cause for this entry?

          A load failed
      A restore failed
      A hardware problem
      A rollforward is required

D   Which of the following is supported by DB2MOVE?
          Exporting and importing LOBs
      Moving table space definitions
      Moving logs to a stand-by database
      Exporting and importing trigger definitions

B Given the following results from GET DBM CFG SHOW DETAIL:
   Description: Size of instance shared memory (4KB)
   Parameter: INSTANCE_MEMORY
   Current Value: AUTOMATIC(3010)
   Delayed Value: 33110

What does "Delayed Value: 33110" indicate?

          On next db2start, the instance shared memory will be a minimum of 3010 4KB pages.
      On next db2start, the instance shared memory will be a minimum of 33110 4KB pages.
      On next db2start, DB2 will automatically calculate the required instance shared memory.
      The instance shared memory will be increased to 33110 4KB pages as soon as the operating system can make the memory available.

Bd Given the following information:
u A full database backup of DB1 was taken at 1:00PM.
A table space TS1 was backed up at 1:15PM.
A table in TS1 was dropped at 2:00PM.
Which two of the following commands are valid after restoring table space TS1 from the full database backup taken at 1:00PM?

(Select 2)
          ROLLFORWARD DATABASE db1 TO 1:15PM
      ROLLFORWARD DATABASE db1 TO 2:30PM
      ROLLFORWARD TABLESPACE ts1 TO 2:30PM
      ROLLFORWARD DATABASE db1 TO END OF LOGS
      ROLLFORWARD TABLESPACE ts1 TO END OF LOGS

B When a variable reaches a warning or alarm threshold, an alert is generated by which of the following?
          Journal
      Health Monitor
      Visual Explain
      Command Center

C The FLUSH` PACKAGE CACHE statement should be run after issuing which of the following commands?
          REORG
      DB2RBIND
      RUNSTATS
      CREATE TABLE UPDATE DATABASE CFG USING ...

C Given the following statement:
     "DROP TABLE payroll.employee"
returns the following message:
     SQL0551N "USER1" does not have the privilege to perform operation
     "DROP" on object "PAYROLL.EMPLOYEE." SQLSTATE=42501
Which of the following will correct the situation?

          GRANT DROP AUTHORITY TO user1
      GRANT DROPIN ON SCHEMA user1 TO user1
      GRANT DROPIN ON SCHEMA payroll TO user1
      GRANT DROPIN ON SCHEMA employee TO user1

????Given the partial output of the command:
     GET DATABASE CONFIGURATION FOR db1

     Database Configuration for Database db1
     Rollforward pending = TABLESPACE
Which of the following commands provides information to determine which table space is in rollforward pending state?

          GET TABLESPACES
      LIST TABLESPACES
      GET PENDING STATE TABLESPACES
      LIST DATABASE TABLESPACES STATE
      SELECT * FROM SYSCAT.TABLESPACES

Given the following data from SYSCAT.TABLES:
TABNAME    CARD   NPAGES FPAGES OVERFLOW

T1         1242   84     85      0
ORG        8000   157    157     2
SALES      844    19     19      45
DEPARTMENT 767    23     23      5

C Which of the following tables will benefit most from being reorganized?

          T1
      ORG
      SALES
      DEPARTMENT

C How many indexes will be created by the following statement?
CREATE TABLE mytab (col1 INT NOT NULL PRIMARY KEY,
     col2 CHAR(64),
     col3 CHAR(32),
     col4 INT NOT NULL,
     CONSTRAINT c4 UNIQUE (col4,col1))

          0
      1
      2
      3

A Which commands are required to restore a Version 7 backup image of the database SAMPLE to a Version 8 instance?
          RESTORE DATABASE sample FROM INTO sample;
          RESTORE DATABASE sample FROM INTO sample; DB2IMIGR;
          RESTORE DATABASE sample FROM INTO sample; MIGRATE DATABASE sample;
          RESTORE DATABASE sample FROM INTO sample; DB2IMIGR; MIGRATE DATABASE sample;}

C Given the following command:
   CREATE TABLESPACE tbs1
      MANAGED BY SYSTEM USING ( 'path1' )
      EXTENTSIZE 16 PREFETCHSIZE 32
In a single partition database, how can the amount of storage available to the table space tbs1 be increased?

          Extend the container
      Add a container to tbs1
      Free up disk space on path1
      Increase the extent size of the table space

Which of the following is automatically granted to PUBLIC when a database is created?
          LOAD
      PASSTHRU
      CREATETAB
      CREATE_NOT_FENCED

AC Which two of the following ALTER TABLESPACE options can be used to reduce the amount of space associated with a DMS table space?

(Select 2)
          RESIZE
      EXTEND
      REDUCE
      ADD TO STRIPE SET 1
      BEGIN NEW STRIPE SET

C?????    A table is experiencing frequent inserts. Which of the following options can defer how frequently DB2 must allocate additional index pages?
          CLUSTER
      PCTFREE
      MINPCTUSED
      SPECIFICATION ONLY

A ??Which combination of database configuration parameters limits the database to version recovery only?
              LOGRETAIN=NO USEREXIT=NO
          LOGRETAIN=NO USEREXIT=YES
          LOGRETAIN=RECOVERY USEREXIT=NO
          LOGRETAIN=RECOVERY USEREXIT=YES

How many buffer pool pages are anticipated for the query in this explain plan?
      1
      47
      250
      2057

C Which of the following will capture explain snapshot information for applications that include embedded static and dynamic SQL?
          The EXPLSNAP YES bind option
      The EXPLSNAP ALL bind option
      The SET CURRENT EXPLAIN SNAPSHOT YES command
      The SET CURRENT EXPLAIN SNAPSHOT ALL command

D 24 Which of the following allows index data to be stored on separate devices from table data?
          DMS table spaces
      SMS table spaces
      The table space containers defined on different devices
      A DMS table space for the index data and an SMS table space for the user data

BC Which two of the following Task Types can be created in the DB2 Task Center?

(Select 2)
          OS command scripts
      DB2 command scripts
      C application programs
      Control Center extensions
      System initialization scripts

B Which of the following actions must be completed before running the EXPORT utility?
          Attach to the instance
      Connect to the database
      Lock the table to be exported
      Force the users off the database
      Quiesce the table space where table resides

C What is the purpose for creating a primary key on a table?
          To ensure duplicate key values are entered
      To support creation of a table check constraint
      To support referential integrity between tables
      To provide free space on each index page for new data

B Which of the following contain information about when a database was last backed up?
          Database directory
      Recovery history file
      Database configuration
      SYSCAT.SERVERS catalog table

C Given the table definitions:
   CREATE TABLE employees
     (employee_num INT NOT NULL PRIMARY KEY,
         employee_name CHAR(20));

   CREATE TABLE pc
     (serial_num INT NOT NULL PRIMARY KEY,
         model_num INT,
         owner_id INT,
     FOREIGN KEY (owner_id)
     REFERENCES employees ON UPDATE RESTRICT);

and the statement:
   UPDATE pc SET owner_id = 1000 WHERE serial_num = 7654

Which of the following conditions must be met before the update will be successful?

          Owner_id 1000 must exist in the pc table.
      Owner_id 1000 must not exist in the pc table
      Employee_num 1000 must exist in the employees table.
      Employee_num 1000 must not exist in the employees table

CE Which two of the following commands would give the minimum point in time of recovery for table spaces in a recoverable database?

(Select 2)
          GET DBM CFG
      LIST MINIMUM POINT IN TIME
      LIST TABLESPACES SHOW DETAIL
      GET DB CFG FOR
      GET SNAPSHOT FOR TABLESPACES ON

Given the following command:
   CREATE DATABASE inventory
     CATALOG TABLESPACE
     MANAGED BY SYSTEM USING ('path1','path2')
     EXTENTSIZE 16 PREFETCHSIZE 32
     USER TABLESPACE
     MANAGED BY SYSTEM USING ('patha')
     TEMPORARY TABLESPACE
     MANAGED BY DATABASE USING ( FILE 'filea' 1000)
     WITH "EXTENTSIZE 8"

With which of the following buffer pools is the catalog table space associated?

          IBMUSERBP
      IBMTEMPBP
      IBMCATALOGBP
      IBMDEFAULTBP

Given the following DDL statements:
     CREATE TABLE PERSON OF PERSON_T
          (REF IS OID USER GENERATED)
     CREATE TABLE EMP OF EMP_T UNDER PERSON
          INHERIT SELECT PRIVILEGES
     CREATE TABLE STUDENT OF STUDENT_T UNDER PERSON
          INHERIT SELECT PRIVILEGES
     CREATE TABLE STAFF (COL1 INT, COL2 INT)
and
     INSERT one row into PERSON
     INSERT one row into EMP
     INSERT one row into STUDENT
     INSERT two rows into STAFF
C :How many rows will be returned after issuing the following SQL statement?
     SELECT * FROM PERSON?

          1
      2
      3
      5
      10

C Which of the following can be created in the table to generate a unique value for each row?
          A PRIMARY KEY
      A ROWID column
      An IDENTITY column
      A NOT NULL WITH DEFAULT column

E Which of the following is required to use the IMPORT utility to import data into a table?

           SYSCTRL authority
      LOAD authority on the table
      ALTER privilege on the table
      IMPORT authority on the table
      INSERT privilege on the table

C In a single partition database, which of the following commands or statements allows containers to be added to an SMS table space?
          BACKUP DATABASE
      RESTORE DATABASE
      ALTER TABLESPACE
      ADD TABLESPACE CONTAINER

C How does DB2 enforce table check constraints for data added to a table with the LOAD utility?
          With the BUILD phase of the LOAD
      With the SET INTEGRITY statement
      With the DELETE phase of the LOAD
      With the UPDATE CONSTRAINTS statement

Given the following information:
     Database manager configuration parameter INDEXREC = RESTART
     Database configuration parameter INDEXREC = SYSTEM
When will invalid indexes be rebuilt?

          When the database restarts
      When the last connection terminates
      When the invalid index is first accessed
      When the REORG INDEXES command is issued

A The status of jobs scheduled by the Task Center can be monitored using which of the following?
          Journal
      Health Center
      Snapshot Monitor
      Information Catalog Center

C Which of the following allows IMPORT using the INSERT option?
          SYSCTRL
      SYSMAINT
      CONTROL privilege on each participating table or view
      IMPLICIT_SCHEMA privilege on each participating table or view

D Given the following statements:
   CREATE REGULAR TABLESPACE new_tbsa PAGESIZE 32K
      MANAGED BY DATABASE USING (FILE 'filea' 1000, FILE 'fileb' 1000)

   CREATE LARGE TABLESPACE new_tbsb
      MANAGED BY DATABASE USING (FILE 'filec' 1000, FILE 'filed' 1000)

   CREATE TABLE tab1 (col1 CLOB (30K), col2 CHAR (30))
      IN new_tbsa LONG IN new_tbsb

   Records are inserted into TAB1.

In which of the following locations is the data placed?

          COL1 and COL2 data will go into NEW_TBSA
      COL1 and COL2 data will go into NEW_TBSB
      COL1 data will go into NEW_TBSA and COL2 data will go into NEW_TBSB
      COL1 data will go into NEW_TBSB and COL2 data will go into NEW_TBSA

C Which of the following requires each row in a table to be unique?
          A foreign key
      A bidirectional index
      An index with include columns
      An index created using PCTFREE

Given the following statement:
     LOAD FROM OF INSERT INTO
When are indexes recreated for the table

          At the next full table scan
      Automatically during the load
      Before the new data is loaded
      While building the exception table

D ??Given the following table definitions:
          CANDIDATE
          ---------
          CandidateName                             CHAR(20) NOT NULL
          CandidateID                               INTEGER NOT NULL
          Address                                   CHAR(100) NOT NULL
          CandidatePhoto                            BLOB(1M)

          TEST_TAKEN
          ----------
          TestName                                  CHAR(50) NOT NULL
          TestNumber                                INTEGER NOT NULL
          TestScore                                 INTEGER NOT NULL
          CandidateID                               INTEGER NOT NULL

And the following information:
     · Candidate IDs are unique in the CANDIDATE table
     · Requirement to select all candidate IDs who have taken test number 701

Assuming no other indexes, which of the following indexes should be created to support the requirement?

          Primary key on candidate (CandidateID) allowing reverse scans
      Unique index on candidate (CandidateID) disallowing reverse scans
      Clustered index on test_taken (CandidateID) allowing reverse scans
      Index on test_taken (CandidateID, TestNumber) allowing reverse scans

?????????Which two of the following will retrieve the dynamic statements currently contained in the statement cache?

(Select 2)
          SET CURRENT EXPLAIN MODE EXPLAIN
      UPDATE DBM CFG USING DFT_MON_STMT ON
      GET SNAPSHOT FOR DYNAMIC SQL ON db-name
      CREATE EVENT MONITOR ev2 FOR STATEMENTS WRITE TO TABLE
      SELECT * FROM TABLE(SNAPSHOT_DYN_SQL('db-name',-1)) AS tab

AC Which two of the following are valid database snapshot monitor switches?

(Select 2)
          UOW
      DEADLOCK
      STATEMENT
      TABLESPACE
      CONNECTION
Given the following command:
     BACKUP DATABASE sample TO path/dir

C ? Which of the following parameters determines how much buffer space will be used to backup the database sample?

          LOGBUFSZ
      BUFFPAGE
      BACKBUFSZ
      UTIL_HEAP_SZ


D There are two instances named INST1 and INST2 on the same server. Which command changes the communication protocol registry variable to TCPIP for ONLY instance INST1?
          db2set -g DB2COMM=TCPIP
      db2set -INST1 DB2COMM=TCPIP
      db2set -i db2 DB2COMM=TCPIP
      db2set -i INST1 DB2COMM=TCPIP

C Which of the following database configuration parameter settings can improve the buffer pool hit ratio?
          The index sort flag = YES (INDEXSORT)
      The catalog cache size > 0 (CATALOGCACHE_SZ)
      The number of I/O servers > 0 (NUM_IOSERVERS)
      The percentage of lock list per application> 0 (MAXLOCKS)

C Which of the following actions will occur when issuing the command FORCE APPLICATION ALL?
          No new database connections are allowed
      Uncommitted units of work are committed
      Uncommitted units of work are rolled back
      Disconnect warning messages are sent to connected users

A DBA has created three related backup tasks in the Task Center. Which of the following tools can be used to edit the tasks?
          Journal
      Command Center
      Control Center
      Development Center

BC   Given the following DDL statements:
   CREATE VIEW v1 AS SELECT col1 FROM tab1 WHERE col1>10
   CREATE VIEW v2 AS SELECT col1 FROM v1 WITH CHECK OPTION
   CREATE VIEW v3 AS SELECT col1 FROM v2 WHERE col1<100

Which two of the following statements will fail?

(Select 2)
          INSERT INTO v1 VALUES (5)
      INSERT INTO v2 VALUES (5)
      INSERT INTO v3 VALUES (5)
      INSERT INTO v3 VALUES (100)
      INSERT INTO v3 VALUES (200)
B Which of the following commands should be run immediately after reorganizing a table?
          REORG
      RUNSTATS
      DB2RBIND
      FLUSH PACKAGE CACHE

C ? Using the Design Advisor graphical interface, which of the following may be used to define input to the Advisor?
          Audit log
      User defined table containing SQL
      SQL statements from the Command Center
      Recent SQL statements from the statement cache

IBM DB2 700�?01认证考试教材(中英�?及全真题库－全国�W�一
本�hdb2 700认证考试使用此套db2考试的最�l�得分是94�Q�，只复习了四天�?
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宝贝含以下内�?
/***************db2 700认证考试认证资料********************/
1、认证英文教�E�：DB2? Universal Database? V8.1 Certification Exam 700 Study Guide�Q�by Roger�Q�权�?
2、db2 700考试权威中文认证�Q�来自IBM会员在考试�U�宝书里面的全部截屏�Q�绝寚w��发；
3、db2 700认证培训�qȝ��片：来自IBM官方�Q�绝�Ҏ��?
4、db2 700认证考试�Q�英文）全真试题6套，覆盖�?00%
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6、db2 700认证考试模拟试题(中文)2套，入门题库
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8、IBM db2数据�?00-704全部考试�U�目的考试大纲
/***************db2 701考试认证资料********************/
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2、db2 701 官方培训教程
3、db2 701 全真�?10�?�Q�覆盖率100%�Q�非常全
4�?db2 701 模拟试题 7套，我的是最全的
��M��一句话�Q�绝对超��|��含金量高�Q�全国首发！不过的全额退�ƾ！一口�h�Q?00�?br />联系人：张先生，电话�Q?3899826736�Q�borlanzy@21cn.com

亮剑 2007-01-16 10:03 发表评论

Db2 700�?01考试全真题库�Q�全国首发题库－全国�W�一

亮剑 — Tue, 16 Jan 2007 02:00:00 GMT

IBM DB2 700�?01认证考试教材(中英�?及全真题�?
本�hdb2 700认证考试使用此套db2考试的最�l�得分是94�Q�，只复习了四天�?
CANDIDATE:YONGZHANG,CANDIDATE ID:vuea89885,REGISTER NUMBER :218576262,�Ƣ迎核实�Q?
宝贝含以下内�?
/***************db2 700认证考试认证资料********************/
1、认证英文教�E�：DB2? Universal Database? V8.1 Certification Exam 700 Study Guide�Q�by Roger�Q�权�?
2、db2 700考试权威中文认证�Q�来自IBM会员在考试�U�宝书里面的全部截屏�Q�绝寚w��发；
3、db2 700认证培训�qȝ��片：来自IBM官方�Q�绝�Ҏ��?
4、db2 700认证考试�Q�英文）全真试题6套，覆盖�?00%
5、db2 700认证考试模拟试题(英文)3套，热��n题库
6、db2 700认证考试模拟试题(中文)2套，入门题库
7、db2 700认证考试官方模拟试题1套－��d��6章，�늛�全部章节
8、IBM db2数据�?00-704全部考试�U�目的考试大纲
/***************db2 701考试认证资料********************/
1、IBM db2 701数据库认证培训课件培训��灯片�Q�来自官�?�l�对权威
2、db2 701 官方培训教程
3、db2 701 全真�?10�?�Q�覆盖率100%�Q�非常全
4�?db2 701 模拟试题 7套，我的是最全的
��M��一句话�Q�绝对超��|��含金量高�Q�全国首发！不过的全额退�ƾ！一口�h�Q?00�?br />联系人：张先生，电话�Q?3899826736�Q�borlanzy@21cn.com

亮剑 2007-01-16 10:00 发表评论

IBM DB2 700认证考试教材(中英�?及全真题库－全国�W�一

亮剑 — Tue, 09 Jan 2007 06:54:00 GMT

本�hdb2 700认证考试使用此套db2考试的最�l�得分是94�Q�，只复习了两天�?
CANDIDATE:YONGZHANG,CANDIDATE ID:vuea89885,REGISTER NUMBER :218576262,�Ƣ迎核实�Q?
宝贝含以下内�?
1、认证英文教�E�：DB2? Universal Database? V8.1 Certification Exam 700 Study Guide�Q�by Roger�Q�权�?
2、db2 700考试权威中文认证�Q�来自IBM会员在考试�U�宝书里面的全部截屏�Q�绝寚w��发；
3、db2 700认证培训�qȝ��片：来自IBM官方�Q�绝�Ҏ��?
4、db2 700认证考试�Q�英文）全真试题6套，覆盖�?00%
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6、db2 700认证考试模拟试题(中文)2套，入门题库
7、db2 700认证考试官方模拟试题1套－��d��6章，�늛�全部章节
8、IBM db2数据�?00-704全部考试�U�目的考试大纲
��M��一句话�Q�绝对超��|��含金量高�Q�全国首发！不过的全额退�ƾ！一口�h�Q?0�?br />联系人：张先生，电话�Q?3899826736�Q?a href="mailto:borlanzy@21cn.com">borlanzy@21cn.com

亮剑 2007-01-09 14:54 发表评论

sql培训内容�Q�精��Q?

亮剑 — Thu, 03 Aug 2006 08:20:00 GMT

sql培训内容�Q�精��Q?

作�?vlife

SQL定义�Q�SQL是一�U�面向数据库的通用数据处理语言规范�Q�能完成以下几类功能�Q�提取查询数据，插入修改删除数据�Q�生成修改和删除数据库对象，数据库安全控�Ӟ��数据库完整性及数据保护控制�?

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REVOKE—撤消用��h��?
COMMIT—提交事务，可以使数据库的修�Ҏ��久化
ROLLBACK—回滚事务，消除上一个COMMIT命��o后的所做的全部修改�Q��得数据库的内�Ҏ��复到上一个COMMIT执行后的状�?�?

1、GRANT�Q�所有着或者管理员把访问权限赋�l�其他用�?
语法格式�Q?
grant [all privileges|privileges,�?] on tabname | viewname to [public|user,�?]
2、REVOKE:取消某一用户的某中访问权�?
语法格式�Q?
Revoke [all privileges|privileges,�?] on tabname | viewname from [public|user,�?]
注：不能取消实例�U�别的用��L��M��权限�Q�他们不是通过grant授权的，是通过�l�实现的权限�?/font>
3、COMMIT:把事务中所做的修改�怹�化记录到数据库�?
语法格式�Q?
commit [work]
4、ROLLBACK:��上�ơ提交以来所做的更改全部撤消�?
语法格式�Q?
Rollback [work]

高��sql��单介�l?
一、查询间使用�q�算�?
A�Q?UNION �q�算�W?
UNION �q�算�W�通过�l�合其他两个�l�果表（例如 TABLE1 �?TABLE2�Q��ƈ消去表中��M��重复行而派生出一个结果表。当 ALL �?UNION 一起��用时�Q�即 UNION ALL�Q�，不消除重复行。两�U�情况下�Q�派生表的每一行不是来�?TABLE1 ��是来自 TABLE2�?
B�Q?EXCEPT �q�算�W?
EXCEPT �q�算�W�通过包括所有在 TABLE1 中但不在 TABLE2 中的行�ƈ消除所有重复行而派生出一个结果表。当 ALL �?EXCEPT 一起��用时 (EXCEPT ALL)�Q�不消除重复行�?
C�Q?INTERSECT �q�算�W?
INTERSECT �q�算�W�通过只包�?TABLE1 �?TABLE2 中都有的行�ƈ消除所有重复行而派生出一个结果表。当 ALL �?INTERSECT 一起��用时 (INTERSECT ALL)�Q�不消除重复行�?
注：使用�q�算词的几个查询�l�果行必��L��一致的�?
二、外�q�接
A、left outer join�Q?
左外�q�接�Q�左�q�接�Q�：�l�果集几包括�q�接表的匚w��行，也包括左�q�接表的所有行�?
B�Q�right outer join:
叛_��q�接(双��?�Q�结果集既包括连接表的匹配连接行�Q�也包括双��接表的所有行�?
C�Q�full outer join�Q?
全外�q�接�Q�不仅包括符可��接表的匹配行�Q�还包括两个�q�接表中的所有记录�?

注：复合外连接按照从左到右的��序执行�q�接�Q�左边连接的�l�果集和双��q�接
三、超�U�分�l�和�U�d��函数
A�Q�grouping sets�Q�用来在单个sql中�Ş成多�U�分�l��?
例：select company_id,node_id,count(customer_id) from customer group by grouping sets(company_id,node_id)
B�Q�rollup�Q�可以在单个数据库操作中形成多个分组�?
例：select company_id,node_id,count(customer_id) from customer group by rollup(company_id,node_id)
注：rollup操作不是可交换的操作�Q�指定用��L��的顺序是很重要的�?
C�Q�cube�Q?生成分组表中分组的所有组合�?
例：select company_id,node_id,count(customer_id) from customer group by cube(company_id,node_id)
D�Q�over�Q�移动函数可以帮助实现移动的数据分析
Select date,avg(qty) over(order by date rows between 1 preceding and 1 following) as values from sale

附录�Q�常用函��C��l?
1、类型�{化函敎ͼ�
转化为数字类型的�Q?
decimal, double, Integer, smallint,real
Hex(arg):转化为参数的16�q�制表示�?
转化为字�W�串�c�d��的：
char, varchar
Digits(arg):�q�回arg的字�W�串表示法，arg必须为decimal�?
转化为日期时间的�Q?
date, time,timestamp
2、时间日期：
year, quarter, month, week, day, hour, minute ,second
dayofyear(arg):�q�回arg在年内的天�?
Dayofweek(arg):�q�回arg在周内的天�?
days(arg):�q�回日期的整数表�C�法�Q�从0001-01-01来的天数�?
midnight_seconds(arg):午夜和arg之间的秒数�?
Monthname(arg):�q�回arg的月份名�?
Dayname(arg):�q�回arg的星期�?
3、字�W�串函数�Q?
length,lcase, ucase, ltrim, rtrim
Coalesce(arg1,arg2�?):�q�回参数集中�W�一个非null参数�?
Concat (arg1,arg2):�q�接两个字符串arg1和arg2�?
insert(arg1,pos,size,arg2):�q�回一个，��arg1从pos处删除size个字�W�，��arg2插入该位�|��?
left(arg,length):�q�回arg最左边的length个字�W�串�?
locate(arg1,arg2,:在arg2中查找arg1�W�一�ơ出现的位置�Q�指定pos�Q�则从arg2的pos处开始找arg1�W�一�ơ出现的位置�?
posstr(arg1,arg2):�q�回arg2�W�一�ơ在arg1中出现的位置�?
repeat(arg1 ,num_times):�q�回arg1被重复num_times�ơ的字符丌Ӏ?
replace(arg1,arg2,arg3):��在arg1中的所有arg2替换成arg3�?
right(arg,length):�q�回一个有arg左边length个字节组成的字符丌Ӏ?
space(arg):�q�回一个包含arg个空格的字符丌Ӏ?
substr(arg1,pos,:�q�回arg1中pos位置开始的length个字�W�，如果没指定length�Q�则�q�回剩余的字�W��?
4、数学函敎ͼ�
Abs, count, max, min, sum
Ceil(arg):�q�回大于或等于arg的最��整数�?
Floor(arg):�q�回��于或等于参数的最��整数�?
Mod(arg1,arg2):�q�回arg1除以arg2的余敎ͼ��W�号与arg1相同�?
Rand():�q�回1�?之间的随机数�?
Power(arg1,arg2):�q�回arg1的arg2�ơ方�?
Round(arg1,arg2):四舍五入截断处理�Q�arg2是位敎ͼ�如果arg2��Q�则对小数点前的数做四舍五入处理�?
Sigh(arg):�q�回arg的符��h��C�符�?1,0,1表示�?
truncate(arg1,arg2):截断arg1�Q�arg2是位敎ͼ�如果arg2是负敎ͼ�则保留arg1��数点前的arg2位�?

5、其他：
nullif(arg1,arg2)�Q�如�?个参数相�{�，则返回null�Q�否则，�q�回参数1

亮剑 2006-08-03 16:20 发表评论

亮剑 — Thu, 03 Aug 2006 08:16:00 GMT

摘要: 1.DB2 产品的��别有那些 ? 　　企业版的 NTERPRISEEDITION 　　工作�l�版 WORKGROUPEDITION 　　企业扩展�? ENTERPRISEEXTENDEDEDITION 　　个�h版的 PERSONALEDITION 　　卫星版的 SATELL... 阅读全文

亮剑 2006-08-03 16:16 发表评论

DB2常用标量函数

亮剑 — Thu, 03 Aug 2006 08:15:00 GMT

函数名�? 说明
AVG() �q�回一�l�数值的�q�_��?br />VAR(), �q�回一�l�数值的方差
ASCII() �q�回整数参数最左边的字�W�的ASCII�?br />BIGINT() �q�回整型帔R��中的数字或字�W�串�?4位整数表�C?br />CHAR() �q�回日期旉��?字符�?整数,十进制或双精度��Q�Ҏ��的字�W�串表示
CHR() �q�回��h��由参数指定的ASCII码的字符
CONCAT(str1,str2) �q�回两个字符串的�q�接
YEAR() �q�回数值的�q�部�?br />UCASE() �q�回字符串的大写
TIME() �q�回一个数��g��的时�?br />SUBSTR(EXP1,EXP2) �q�回EXP1串自EXP2处开始的子串
SECOND() �q�回一个数值的�U�部�?br />RTRIM() 删除字符串尾部的�I�格
ROUND(EXP1,EXP2) �q�回EXP1��数点右边的�W�EXP2位置处开始的四舍五入�?br />REPLACE(EXP1,EXP2,EXP3) 用EXP3替代EXP1中所有的EXP2
REAL() �q�回一个数值的单精度��Q�Ҏ��表示
RAND() �q�回0�?之间的随机��Q�Ҏ��
POSSTR(EXP1,EXP2) �q�回EXP2在EXP1中的位置
MONTH() �q�回一个数值的月部�?br />MOD(EXP1,EXP2) �q�回EXP1除以EXP2的余�?br />MINUTE() �q�回一个数值的分钟部分
LTRIM() 删除字符串前面的�I�格
HOUR() �q�回一个数值的��时部分

亮剑 2006-08-03 16:15 发表评论

DB2中的限制之三字符串的限制

亮剑 — Thu, 03 Aug 2006 08:14:00 GMT

在現實的DB2應用中大家可能經常會遇到一些錯�?錯誤的原因是��DB2�?br />限制不太了解而引��L��,在此我簡單地�^�結一�?歡迎大家�J�續�H�以便和大家�׃�n�H?br />共同探討�H�共同近步﹗(以下主要以DB2 7.X��Z��)�?br />1. CHAR 的最大長�?字節�?<=254
2. VARCHAR 的最大長�?字節�?<=32672
3. LONG VARCHAR 的最大長�?字節�?<=32700
4. CLOB 的最大長�?字節�?<=2147483647
5. GRAPHICCHAR 的最大長�?字節�?<=127
6. VARGRAPHIC 的最大長�?字節�?<=16336
7. LONG VARGRAPHIC 的最大長�?字節�?<=16350
8. DBCLOB 的最大長�?字節�?<=1073741823
9. BLOB 的最大長�?字節�?<=2147483647
10. 字符帔R��的最大長�?字節�?<=32672
11. 圖�Ş帔R��的最大長�?字節�?<=16336
12. 串聯字符串的最大長�?字節�?<=2147483647
13. 串聯圖�Ş串的最大長�?字節�?<=1073741823
14. 串聯二進制串的最大長�?字節�?<=2147483647
15. 十六進制帔R��數字的最大長�?字節�?<=16336
16. 分類注釋的最大長�?字節�?<=254
17. 運行時結构類型列��象的最大長�?字節�?<=1

亮剑 2006-08-03 16:14 发表评论

亮剑 — Thu, 03 Aug 2006 08:13:00 GMT

DAYNAME         �q�回一个大��写混合的字�W�串�Q�对于参数的日部分，用星期表�C��一天的名称�Q�例如，Friday�Q�。 �?
DAYOFWEEK    �q�回参数中的星期几，用范围在 1-7 的整数��D��C�，其中 1 代表星期日。 �?
DAYOFWEEK_ISO �q�回参数中的星期几，用范围在 1-7 的整数��D��C�，其中 1 代表星期一。 �?
DAYOFYEAR          �q�回参数中一�q�中的第几天�Q�用范围在�?-366 的整数��D��C�。 �?
DAYS                     �q�回日期的整数表�C�。 �?
JULIAN_DAY         �q�回从公元前 4712 �q�b? 月�? 日（儒略日历的开始日期）到参��C��指定日期��g��间的天数�Q�用整数��D��C�。 �?
MIDNIGHT_SECONDS  �q�回午夜和参��C��指定的时间��g��间的�U�数�Q�用范围在�? 刊W?6400 之间的整数��D��C�。 �?
MONTHNAME               对于参数的月部分的月份，�q�回一个大��写混合的字�W�串�Q�例如，January�Q�。 �?
TIMESTAMP_ISO         �Ҏ��日期、时间或旉��戌��参数而返回一个时间戳记倹{�� ?
TIMESTAMP_FORMAT 从已使用字符模板解释的字�W�串�q�回旉��戌��。 �?
TIMESTAMPDIFF        �Ҏ��两个旉��戌��之间的时差，�q�回��q��一个参数定义的�c�d��表示的估计时差。 �?
TO_CHAR                   �q�回已用字符模板�q�行格式化的旉��戌��的字�W�表�C�。TO_CHAR 是 VARCHAR_FORMAT 的同义词。 �?
TO_DATE                  从已使用字符模板解释�q�的字符串返回时间戳记。TO_DATE 是 TIMESTAMP_FORMAT 的同义词。 �?
WEEK                     �q�回参数中一�q�的�W�几周，用范围在 1-54 的整数��D��C�。以星期日作��Z��周的开始。 �?
WEEK_ISO            �q�回参数中一�q�的�W�几周，用范围在 1-53 的整数��D��C��?br />
要��当前旉��或当前时间戳记调整到 GMT/CUT�Q�则把当前的旉��或时间戳记减��d��前时区寄存器�Q��?
current time - current timezone
current timestamp - current timezone

�l�定了日期、时间或旉��戌��Q�则使用适当的函数可以单独抽取出�Q�如果适用的话�Q�年、月、日、时、分、秒及微�U�各部分�Q��?
YEAR (current timestamp)
MONTH (current timestamp)
DAY (current timestamp)
HOUR (current timestamp)
MINUTE (current timestamp)
SECOND (current timestamp)
MICROSECOND (current timestamp)

因�ؓ没有更好的术语，所以您�q�可以��用英语来执行日期和时间计��：
current date + 1 YEAR
current date + 3 YEARS + 2 MONTHS + 15 DAYS
current time + 5 HOURS - 3 MINUTES + 10 SECONDS

从时间戳记单独抽取出日期和时间也非常��单：
DATE (current timestamp)
TIME (current timestamp)

而以下示例描�q�C��如何获得微秒部分归零的当前时间戳讎ͼ�

CURRENT TIMESTAMP - MICROSECOND (current timestamp) MICROSECONDS

如果惛_��日期或时间��g��其它文本相衔接，那么需要先��该��D�{换成字符丌Ӏ��ؓ此，只要使用 CHAR() 函数�Q��?

char(current date)
char(current time)
char(current date + 12 hours)

要将字符串�{换成日期或时间��|��可以使用�Q��?

TIMESTAMP ('2002-10-20-12.00.00.000000')
TIMESTAMP ('2002-10-20 12:00:00')
DATE ('2002-10-20')
DATE ('10/20/2002')
TIME ('12:00:00')
TIME ('12.00.00')

TIMESTAMP()、DATE() 和 TIME() 函数接受更多�U�格式。上面几�U�格式只是示例，我将把它作�ؓ一个练习，让读者自己去发现其它格式。�?

有时�Q�您需要知道两个时间戳��C��间的时差。�ؓ此，DB2 提供了一个名为 TIMESTAMPDIFF() 的内�|�函数。但该函数返回的是近似��|��因�ؓ它不考虑闰年�Q�而且假设每个月只有�?0 天。以下示例描�q�C��如何得到两个日期的近似时差：

timestampdiff (, char(
timestamp('2002-11-30-00.00.00')-
timestamp('2002-11-08-00.00.00')))

对于 �Q�可以��用以下各值来替代�Q�以指出�l�果的时间单位：

1 = �U�的��数部分
2 = �U� �?
4 = 分 �?
8 = 时 �?
16 = 天 �?
32 = 周 �?
64 = 月 �?
128 = 季度
256 = �q�b��?
当日期很接近时��用 timestampdiff() 比日期相差很大时�_��。如果需要进行更�_��的计��，可以使用以下�Ҏ��来确定时差（按秒计）�Q��?

(DAYS(t1) - DAYS(t2)) * 86400 +
(MIDNIGHT_SECONDS(t1) - MIDNIGHT_SECONDS(t2))

为方便�v见，�q�可以对上面的方法创建 SQL 用户定义的函敎ͼ�

CREATE FUNCTION secondsdiff(t1 TIMESTAMP, t2 TIMESTAMP)
RETURNS INT
RETURN (
(DAYS(t1) - DAYS(t2)) * 86400 +
(MIDNIGHT_SECONDS(t1) - MIDNIGHT_SECONDS(t2))
)
@

如果需要确定给定年份是否是闰年�Q�以下是一个很有用的 SQL 函数�Q�您可以创徏它来��定�l�定�q�䆾的天敎ͼ�

CREATE FUNCTION daysinyear(yr INT)
RETURNS INT
RETURN (CASE (mod(yr, 400)) WHEN 0 THEN 366 ELSE
        CASE (mod(yr, 4))   WHEN 0 THEN
        CASE (mod(yr, 100)) WHEN 0 THEN 365 ELSE 366 END
        ELSE 365 END
END)@

最后，以下是一张用于日期操作的内置函数表。它旨在帮助您快速确定可能满��x��要求的函敎ͼ�但未提供完整的参考。有兌��些函数的更多信息�Q�请参考 SQL 参考大全。�?

SQL 日期和时间函敊W��?
DAYNAME �q�回一个大��写混合的字�W�串�Q�对于参数的日部分，用星期表�C��一天的名称�Q�例如，Friday�Q�。 �?
DAYOFWEEK �q�回参数中的星期几，用范围在 1-7 的整数��D��C�，其中 1 代表星期日。 �?
DAYOFWEEK_ISO �q�回参数中的星期几，用范围在 1-7 的整数��D��C�，其中 1 代表星期一。 �?
DAYOFYEAR �q�回参数中一�q�中的第几天�Q�用范围在�?-366 的整数��D��C�。 �?
DAYS �q�回日期的整数表�C�。 �?
JULIAN_DAY �q�回从公元前 4712 �q�b? 月�? 日（儒略日历的开始日期）到参��C��指定日期��g��间的天数�Q�用整数��D��C�。 �?
MIDNIGHT_SECONDS �q�回午夜和参��C��指定的时间��g��间的�U�数�Q�用范围在�? 刊W?6400 之间的整数��D��C�。 �?
MONTHNAME 对于参数的月部分的月份，�q�回一个大��写混合的字�W�串�Q�例如，January�Q�。 �?
TIMESTAMP_ISO �Ҏ��日期、时间或旉��戌��参数而返回一个时间戳记倹{�� ?
TIMESTAMP_FORMAT 从已使用字符模板解释的字�W�串�q�回旉��戌��。 �?
TIMESTAMPDIFF �Ҏ��两个旉��戌��之间的时差，�q�回��q��一个参数定义的�c�d��表示的估计时差。 �?
TO_CHAR �q�回已用字符模板�q�行格式化的旉��戌��的字�W�表�C�。TO_CHAR 是 VARCHAR_FORMAT 的同义词。 �?
TO_DATE 从已使用字符模板解释�q�的字符串返回时间戳记。TO_DATE 是 TIMESTAMP_FORMAT 的同义词。 �?
WEEK �q�回参数中一�q�的�W�几周，用范围在 1-54 的整数��D��C�。以星期日作��Z��周的开始。 �?

亮剑 2006-08-03 16:13 发表评论

亚洲视频自拍偷拍,a√资源在线,99精品久久只有精品

Db2 700�?701考试全真题库�Q�全国首发题库－全国�W�一

Db2 700�?701考试全真题库�Q�全国首发题库－全国�W�一

Db2 700�?701考试全真题库�Q�全国首发题库－全国�W�一

Db2 700�?701考试全真题库�Q�全国首发题库－全国�W�一

Db2 700�?01考试全真题库�Q�全国首发题库－全国�W�一

IBM DB2 700认证考试教材(中英�?及全真题库－全国�W�一

sql培训内容�Q�精����Q?

DB2常用标量函数

DB2中的限制之三字符串的限制

sql培训内容�Q�精��Q?