摘要: 1. 安裝vnc
rpm -ivh vnc-server-4.1.2-14.el5_3.1.i386.rpm
rpm -ivh vnc-4.1.2-14.el5_3.1.i386.rpm


3. 設(shè)置vnc server的訪問(wèn)密碼
[ann@ecdev1 ~]# vncpasswd

3. 執(zhí)行vncserver,第一次執(zhí)行后會(huì)生產(chǎn)一些配置文件

4. 修改/home/ann/.vnc/xstart（如果無(wú)此文件，就運(yùn)行vncserver）
#!/bin/sh
# Uncomment the following two lines for normal desktop:
unset SESSION_MANAGER
exec /etc/X11/xinit/xinitrc
[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xsta  閱讀全文      摘要: I tried the Build and Deployment tool in Commerce version 7. I followed the tutorial for the same found here:
http://publib.boulder.ibm.com/infocenter/wchelp/v7r0m0/topic/com.ibm.commerce.developer.doc/concepts/cdewcbdbuild.htm

When I start the build process it extracts the projects from the CVS successfully, but while buildingarchiving the ejb jar the build fails with the following error:
java.io.IOException: Cannot run program "D:\Programs\RAD75\SDP\runtimes\base_v7\java\jre\b  閱讀全文      摘要:

SQL like子句的另一種實(shí)現(xiàn)方法,速度比like快


一般來(lái)說(shuō)使用模糊查詢，大家都會(huì)想到LIKE
select * from table where a like '%字符%'

如果一個(gè)SQL語(yǔ)句中用多個(gè) like模糊查詢，并且記錄條數(shù)很大，那速度一定會(huì)很慢。
下面兩種方法也可實(shí)現(xiàn)模糊查詢：
select * from table where patindex('%字符%',a)>0
select * from table where charindex('字符',a)>0
經(jīng)測(cè)試這兩種方法比LIKE速度要快。

  閱讀全文      摘要: #!/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
#################################
# application: test
# DFILE : pid file
# GDIR : application webapp
# LOGDIR : logs dir
######################
NAME=et-play
TestDIR="/data/webapps/play/test"
GDIR="${TestDIR}/test"
PIDFILE="${TestDIR}/${NAME}.pid"
LOGDIR="${GDIR}/logs"
APP_USER=test
# Timeout in seconds for the shutdown of webapps
APP_SHUTDOWN=30 <  閱讀全文      摘要: 1.備份表中的數(shù)據(jù)


D:\Program Files\PostgreSQL-8.3.7\bin\pg_dump.exe -h *.*.*.* -p 5432 -U username -F c -v -f "D:\Program Files\PostgreSQL-8.3.7\bin\sss.backup" -t "\"public\".\"tablename\"" databasename

2. 創(chuàng)建表

CREATE TABLE tablename
(
id bigint,
createtime timestamp without time zone,
modifyname character varying(255),
modify_date timestamp without time zone,
modify_detail character varying(100000),
"name" character varying(255  閱讀全文      摘要: 一.linux 監(jiān)控?cái)?shù)據(jù)庫(kù)活動(dòng)
$ ps auxww | grep ^postgres

postgres 3424 0.0 1.2 42708 26588 ? Ss Jan29 0:00 postgres: writer process
postgres 3425 0.0 0.0 42576 1284 ? Ss Jan29 0:00 postgres: wal writer process
postgres 3426 0.0 0.0 43364 1972 ? Ss J  閱讀全文      摘要: 1、對(duì)于第一種重復(fù)，比較容易解決，使用

select distinct * from tableName

　　就可以得到無(wú)重復(fù)記錄的結(jié)果集。

　　 如果該表需要?jiǎng)h除重復(fù)的記錄（重復(fù)記錄保留1條），可以按以下方法刪除

select distinct * into #Tmp from tableName
drop table tableName
select * into tableName from #Tmp
drop table #Tmp


  閱讀全文