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MySQL瀵煎叆瀵煎叆鍛戒護(hù)鎬葷粨

persister — Wed, 14 Jul 2010 09:52:00 GMT

鍩烘湰鍒嗕負(fù)涓ょ褰㈠紡錛屼竴縐嶆槸sql褰㈠紡鐨勬暟鎹鍏ュ鍑?mysqldump,mysql,source)錛屽彟涓€縐嶆槸鑷畾涔夋暟鎹殑瀵煎叆瀵煎嚭(load data infile, into outfile)銆?br />
鑷畾涔夋暟鎹牸寮忕殑瀵煎叆瀵煎嚭鏈変竴涓ソ澶勫氨鏄暟鎹彲浠ユ槸csv鏍煎紡鐨勶紝鑰屼笖鐢ㄧ殑闈炲父澶氥€傛瘮濡傚ぇ鍨嬬殑鏁版嵁錛屽鏋滃線鏌ヨ鍒版暟鎹劧鍚庡啓鍒癳xcel閲岄潰錛屾晥鐜囪偗瀹氭槸涓€涓棶棰樸€備絾鏄敤mysql鐨勮嚜甯︾殑鍛戒護(hù)錛岄偅涔堝氨鍙互璁﹎ysql鑷繁鐢熸垚csv鏂囦歡錛岃繖鏍烽€熷害浼?xì)蹇笉灏戙€傚鍏ヤ篃鏄竴鏍鳳紝灝辨槸鏁版嵁鏂囦歡鍙互浼犲埌鏈嶅姟鍣ㄤ笂錛岀劧鍚庝嬌鐢╩ysql鐨勫懡浠ゅ鍏ュ埌鏁版嵁搴撲腑錛屾瘮璇籧sv鏍煎紡鐨勬枃浠剁劧鍚庢彃鍏ュ埌鏁版嵁搴撲腑鏁堢巼浼?xì)鎻愰珮涓崬畱銆?br />

涓嬮潰闄勪笂榪欎簺鍛戒護(hù)鐨勫叿浣撴弿榪幫細(xì)

mysql涓璍oad Data InFile鏄敤浜庢壒閲忓悜鏁版嵁琛ㄤ腑瀵煎叆璁板綍銆?br /> 棣栧厛鍒涘緩涓€涓〃
Use Test;
Create Table TableTest(
`ID` mediumint(8) default '0',
`Name` varchar(100) default ''
) TYPE=MyISAM;

鍚戞暟鎹〃瀵煎叆鏁版嵁
Load Data InFile 'D:/Data.txt' Into Table `TableTest`

甯哥敤濡備笅錛?br /> Load Data InFile 'D:/Data.txt' Into Table `TableTest` Lines Terminated By '"r"n';
榪欎釜璇彞錛屽瓧孌甸粯璁ょ敤鍒惰〃絎﹂殧寮€錛屾瘡鏉¤褰曠敤鎹㈣絎﹂殧寮€錛屽湪Windows涓嬫崲琛岀涓?#8220;"r"n”
D:/Data.txt 鏂囦歡鍐呭濡備笅闈袱琛岋細(xì)
1 A
2 B
“1”鍜?#8220;A”涔嬮棿鏈変竴涓埗琛ㄧ
榪欐牱灝卞榪涗袱鏉¤褰曚簡(jiǎn)銆?br />
鑷畾涔夎娉?br /> Load Data InFile 'D:/Data.txt' Into Table `TableTest` Fields Terminated By ',' Enclosed By '"'

Escaped By '"' Lines Terminated By '"r"n';
Fields Terminated By ',' Enclosed By '"' Escaped By '"'
琛ㄧず姣忎釜瀛楁鐢ㄩ€楀彿鍒嗗紑錛屽唴瀹瑰寘鍚湪鍙屽紩鍙峰唴
Lines Terminated By '"r"n';
琛ㄧず姣忔潯鏁版嵁鐢ㄦ崲琛岀鍒嗗紑

瀵煎叆鏁版嵁搴?br /> 甯哥敤source 鍛戒護(hù)
榪涘叆mysql鏁版嵁搴撴帶鍒跺彴錛?br /> 濡俶ysql -u root -p

mysql>use 鏁版嵁搴?br />
鐒跺悗浣跨敤source鍛戒護(hù)錛屽悗闈㈠弬鏁頒負(fù)鑴氭湰鏂囦歡錛堝榪欓噷鐢ㄥ埌鐨?sql錛?br /> mysql>source d:"wcnc_db.sql

涔熷彲浠ヤ嬌鐢╩ysql鍛戒護(hù)錛堝湪bin鐩綍涓嬶級(jí)
.../bin/mysql db1 > xx.sql;

鍜?Load Data InFile 鐩稿弽鐨勬槸
Select * From `TableTest` Into OutFile 'D:/Data_OutFile.txt';
鎶婅〃鐨勬暟鎹鍑?br />

Using command line tools to export data from a MySQL database into a CSV file is quite easy. Here's

how:

mysql -uexampleuser -pletmein exampledb -B -e "select * from "`person"`;" | sed 's/

"t/","/g;s/^/"/;s/$/"/;s/"n//g' > filename.csv

Here is some sample output of the above:

"id","username","group","password"
"1","tux","admin","5f4dcc3b5aa765d61d8327deb882cf99"
"2","tlugian","admin","5f4dcc3b5aa765d61d8327deb882cf99"
"3","saiyuki","admin","5f4dcc3b5aa765d61d8327deb882cf99"
"4","fred","staff","5f4dcc3b5aa765d61d8327deb882cf99"
"5","barney","staff","5f4dcc3b5aa765d61d8327deb882cf99"
"6","wilma","admin","5f4dcc3b5aa765d61d8327deb882cf99"

And now for the explanation:

Starting with the MySQL command. I wont explain the -u and -p options they are straight forward (if

in doubt man mysql). The -B option will delimit the data using tabs and each row will appear on a

new line. The -e option denotes the command to run once you have logged into the database. In this

case we are using a simple SELECT statement.

Onto sed. The command used here contains three seperate sed scripts:

s/"t/","/g;s/^/"/ <--- this will search and replace all occurences of 'tabs' and replace them

with a ",".

;s/$/"/; <--- This will place a " at the start of the line.

s/"n//g <---- This will place a " at the end of the line.

After running the result set through sed we redirect the output to a file with a .csv extension.

mysqldump鍛戒護(hù)鐨勮緭鍏ユ槸鍦╞in鐩綍涓?
1.瀵煎嚭鏁翠釜鏁版嵁搴?br />
mysqldump -u 鐢ㄦ埛鍚?-p 鏁版嵁搴撳悕 > 瀵煎嚭鐨勬枃浠跺悕

mysqldump -u wcnc -p smgp_apps_wcnc > wcnc.sql

2.瀵煎嚭涓€涓〃

mysqldump -u 鐢ㄦ埛鍚?-p 鏁版嵁搴撳悕琛ㄥ悕> 瀵煎嚭鏂囦歡鐨勮礬寰勫拰鍚嶇О

mysqldump -u wcnc -p smgp_apps_wcnc users> wcnc_users.sql

persister 2010-07-14 17:52 鍙戣〃璇勮

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MySQL Show processlist鍛戒護(hù)鍔熻兘

persister — Tue, 13 Jul 2010 08:15:00 GMT

persister 2010-07-13 16:15 鍙戣〃璇勮

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MySQL蹇樿root瀵嗙爜鎬庝箞鍔烇紵

persister — Wed, 24 Mar 2010 09:26:00 GMT

鍚姩 MySQL錛歮ysqld --skip-grant-tables錛?br /> 灝卞彲浠ヤ笉闇€瑕佸瘑鐮佸氨榪涘叆 MySQL 浜?jiǎn)銆?
鐒跺悗灝辨槸
>use mysql
>update user set password=password("new_pass") where user="root";
>flush privileges;
閲嶆柊鏉€ MySQL 錛岀敤姝ｅ父鏂規(guī)硶鍚姩 MySQL 銆?br />
榪欓噷鏈変竴涓湴鏂硅娉ㄦ剰錛屽氨鏄湁鍙兘錛寀ser琛ㄤ腑鏍規(guī)湰灝辨病鏈塺oot榪欎釜鐢ㄦ埛銆?br />

persister 2010-03-24 17:26 鍙戣〃璇勮

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MYSQL Master-Slave閰嶇疆鍜屽疄鐜板師鐞?/title>http://www.aygfsteel.com/persister/archive/2009/09/09/294507.htmlpersisterpersisterWed, 09 Sep 2009 12:37:00 GMThttp://www.aygfsteel.com/persister/archive/2009/09/09/294507.htmlhttp://www.aygfsteel.com/persister/comments/294507.htmlhttp://www.aygfsteel.com/persister/archive/2009/09/09/294507.html#Feedback0http://www.aygfsteel.com/persister/comments/commentRss/294507.htmlhttp://www.aygfsteel.com/persister/services/trackbacks/294507.html

Scale-out solutions - spreading the load among multiple slaves to improve performance. In this environment, all writes and updates must take place on the master server. Reads, however, may take place on one or more slaves. This model can improve the performance of writes (since the master is dedicated to updates), while dramatically increasing read speed across an increasing number of slaves.

Data security - because data is replicated to the slave, and the slave can pause the replication process, it is possible to run backup services on the slave without corrupting the corresponding master data.

Analytics - live data can be created on the master, while the analysis of the information can take place on the slave without affecting the performance of the master.

Long-distance data distribution - if a branch office would like to work with a copy of your main data, you can use replication to create a local copy of the data for their use without requiring permanent access to the master銆?br />

閰嶇疆鍙傝€僲ysql瀹樻柟鏂囨。錛屾寜鐓ч厤緗枃妗ｏ紝鎴戝叿浣撴祴璇曚簡(jiǎn)涓€涓嬶紝娌℃湁闂錛屽ぇ姒傜殑閰嶇疆姝ラ濡備笅錛?br />

1銆丮aster绔殑my.cnf閰嶇疆

log-bin
server-id=1
sql-bin-update-same
binlog-do-db=vbb

2銆丼lave绔殑my.cnf閰嶇疆

master-host=192.168.22.25
master-user=salve
master-password=123456
master-port=3306
server-id=2
master-connect-retry=60 棰勮閲嶈瘯闂撮殧60縐?/span>

3銆佸鍒?/strong>

CHANGE MASTER to MASTER_LOG_FILE='mysql-bin.000006', MASTER_LOG_POS=98

鍏蜂綋閰嶇疆鏈変竴浜涚粏鑺傦紝鐪嬪畼鏂規(guī)枃妗ｅ嵆鍙€?br />
榪欓噷鍏蜂綋璇翠竴涓嬪叾鍘熺悊錛?br />

1銆佸鍒惰繘紼?/strong>
Mysql鐨勫鍒訛紙Replication錛夋槸涓€涓紓姝ョ殑澶嶅埗錛屼粠涓€涓狹ysql instace錛堢О涔嬩負(fù)Master錛夊鍒跺埌鍙︿竴涓狹ysql instance錛堢О涔婼lave錛夈€傚疄鐜版暣涓鍒舵搷浣滀富瑕佺敱涓変釜榪涚▼瀹屾垚鐨勶紝鍏朵腑涓や釜榪涚▼鍦⊿lave錛圫ql榪涚▼鍜孖O榪涚▼錛夛紝鍙﹀涓€涓繘紼嬪湪 Master錛圛O榪涚▼錛変笂銆?br /> 瑕佸疄鏂藉鍒訛紝棣栧厛蹇呴』鎵撳紑Master绔殑binary log錛坆in-log錛夊姛鑳斤紝鍚﹀垯鏃犳硶瀹炵幇銆傚洜涓烘暣涓鍒惰繃紼嬪疄闄呬笂灝辨槸Slave浠嶮aster绔幏鍙栬鏃ュ織鐒跺悗鍐嶅湪鑷繁韜笂瀹屽叏欏哄簭鐨勬墽琛屾棩蹇椾腑鎵€璁板綍鐨勫悇縐嶆搷浣溿€?br /> 澶嶅埗鐨勫熀鏈繃紼嬪涓嬶細(xì)
1)銆丼lave涓婇潰鐨処O榪涚▼榪炴帴涓奙aster錛屽茍璇鋒眰浠庢寚瀹氭棩蹇楁枃浠剁殑鎸囧畾浣嶇疆錛堟垨鑰呬粠鏈€寮€濮嬬殑鏃ュ織錛変箣鍚庣殑鏃ュ織鍐呭錛?br />
2)銆丮aster鎺ユ敹鍒版潵鑷猄lave鐨処O榪涚▼鐨勮姹傚悗錛岄€氳繃璐熻矗澶嶅埗鐨処O榪涚▼鏍規(guī)嵁璇鋒眰淇℃伅璇誨彇鍒跺畾鏃ュ織鎸囧畾浣嶇疆涔嬪悗鐨勬棩蹇椾俊鎭紝榪斿洖緇橲lave 鐨処O榪涚▼銆傝繑鍥炰俊鎭腑闄や簡(jiǎn)鏃ュ織鎵€鍖呭惈鐨勪俊鎭箣澶栵紝榪樺寘鎷湰嬈¤繑鍥炵殑淇℃伅宸茬粡鍒癕aster绔殑bin-log鏂囦歡鐨勫悕縐頒互鍙?qiáng)bin-log鐨勪綅緗紱

3)銆丼lave鐨処O榪涚▼鎺ユ敹鍒頒俊鎭悗錛屽皢鎺ユ敹鍒扮殑鏃ュ織鍐呭渚濇娣誨姞鍒癝lave绔殑relay-log鏂囦歡鐨勬渶鏈錛屽茍灝嗚鍙栧埌鐨凪aster绔殑 bin-log鐨勬枃浠跺悕鍜屼綅緗褰曞埌master-info鏂囦歡涓紝浠ヤ究鍦ㄤ笅涓€嬈¤鍙栫殑鏃跺€欒兘澶熸竻妤氱殑鍛婅瘔Master“鎴戦渶瑕佷粠鏌愪釜bin-log鐨勫摢涓綅緗紑濮嬪線鍚庣殑鏃ュ織鍐呭錛岃鍙戠粰鎴?#8221;錛?br />
4)銆丼lave鐨凷ql榪涚▼媯€(gè)嫻嬪埌relay-log涓柊澧炲姞浜?jiǎn)鍐呭鍚庡Q屼細(xì)椹笂瑙ｆ瀽relay-log鐨勫唴瀹規(guī)垚涓哄湪Master绔湡瀹炴墽琛屾椂鍊欑殑閭ｄ簺鍙墽琛岀殑鍐呭錛屽茍鍦ㄨ嚜韜墽琛屻€?br /> 瀹為檯涓婂湪鑰佺増鏈殑Mysql鐨勫鍒跺疄鐜板湪Slave绔茍涓嶆槸涓や釜榪涚▼瀹屾垚鐨勶紝鑰屾槸鐢變竴涓繘紼嬪畬鎴愩€備絾鏄悗鏉ュ彂鐜拌繖鏍峰仛瀛樺湪杈冨ぇ鐨勯闄╁拰鎬ц兘闂錛屼富瑕佸涓嬶細(xì)
棣栧厛錛屼竴涓繘紼嬪氨浣垮鍒禸in-log鏃ュ織鍜岃В鏋愭棩蹇楀茍鍦ㄨ嚜韜墽琛岀殑榪囩▼鎴愪負(fù)涓€涓覆琛岀殑榪囩▼錛屾€ц兘鍙楀埌浜?jiǎn)涓€瀹氱殑闄愬埗錛屽紓姝ュ鍒剁殑寤惰繜涔熶細(xì)姣旇緝闀褲€?br /> 鍙﹀錛孲lave绔粠Master绔幏鍙朾in-log榪囨潵涔嬪悗錛岄渶瑕佹帴鐫€瑙ｆ瀽鏃ュ織鍐呭錛岀劧鍚庡湪鑷韓鎵ц銆傚湪榪欎釜榪囩▼涓紝Master绔彲鑳藉張浜х敓浜?jiǎn)澶ч? 鍙樺寲騫跺０縐頒簡(jiǎn)澶ч噺鐨勬棩蹇椼€傚鏋滃湪榪欎釜闃舵Master绔殑瀛樺偍鍑虹幇浜?jiǎn)鏃犳硶淇鐨勯敊璇Q岄偅涔堝湪榪欎釜闃舵鎵€浜х敓鐨勬墍鏈夊彉鏇撮兘灝嗘案榪滄棤娉曟壘鍥炪€傚鏋滃湪Slave 绔殑鍘嬪姏姣旇緝澶х殑鏃跺€欙紝榪欎釜榪囩▼鐨勬椂闂村彲鑳戒細(xì)姣旇緝闀褲€?br /> 鎵€浠ワ紝鍚庨潰鐗堟湰鐨凪ysql涓轟簡(jiǎn)瑙ｅ喅榪欎釜椋庨櫓騫舵彁楂樺鍒剁殑鎬ц兘錛屽皢Slave绔殑澶嶅埗鏀逛負(fù)涓や釜榪涚▼鏉ュ畬鎴愩€傛彁鍑?guó)櫩欎釜鏀箻q涙柟妗堢殑浜烘槸Yahoo!鐨勪竴浣嶅伐紼? 甯?#8220;Jeremy Zawodny”銆傝繖鏍鋒棦瑙ｅ喅浜?jiǎn)鎬ц兘闂錛屽張緙╃煭浜?jiǎn)寮傛鐨勫欢鏃舵棄櫁村Q屽悓鏃朵篃鍑忓皯浜?jiǎn)鍙兘瀛樺湪鐨勬暟鎹涪澶遍噺銆傚綋鐒?dòng)灱屽嵆鋴涉槸鎹㈡垚浜?jiǎn)鐜板湪榪欐牱涓や釜綰跨▼澶勭悊浠ュ悗錛屽悓鏍蜂篃榪樻槸瀛樺湪slave鏁版嵁寤舵椂浠ュ強(qiáng)鏁版嵁涓㈠け鐨勫彲鑳芥€х殑錛屾瘯绔熻繖涓鍒舵槸寮傛鐨勩€傚彧瑕佹暟鎹殑鏇存敼涓嶆槸鍦ㄤ竴涓簨鐗╀腑錛岃繖浜涢棶棰橀兘鏄細(xì)瀛樺湪鐨勩€傚鏋滆瀹屽叏閬垮厤榪欎簺闂錛屽氨鍙兘鐢╩ysql鐨刢luster鏉ヨВ鍐充簡(jiǎn)銆備笉榪噈ysql鐨刢luster鏄唴瀛樻暟鎹簱鐨勮В鍐蟲柟妗堬紝闇€瑕佸皢鎵€鏈夋暟鎹兘load鍒板唴瀛樹腑錛岃繖鏍峰氨瀵瑰唴瀛樼殑瑕佹眰灝遍潪甯稿ぇ浜?jiǎn)锛屽浜庝竴鑸殑搴旂敤鏉ヨ鍙疄鏂芥€т笉鏄お澶с€?br />

2銆佸鍒跺疄鐜扮駭鍒?/strong>
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With statement-based replication, you may encounter issues with replicating stored routines or triggers. You can avoid these issues by using row-based replication instead.

浠庡畼鏂規(guī)枃妗ｄ腑鐪嬪埌錛屼箣鍓嶇殑Mysql涓€鐩撮兘鍙湁鍩轟簬statement鐨勫鍒舵ā寮忥紝鐩村埌5.1.5鐗堟湰鐨凪ysql鎵嶅紑濮嬫敮鎸乺ow level鐨勫鍒躲€備粠5.0寮€濮嬶紝Mysql鐨勫鍒跺凡緇忚В鍐充簡(jiǎn)澶ч噺鑰佺増鏈腑鍑虹幇鐨勬棤娉曟紜鍒剁殑闂銆備絾鏄敱浜庡瓨鍌ㄨ繃紼嬬殑鍑虹幇錛岀粰Mysql鐨勫鍒跺張甯︽潵浜?jiǎn)鏇村ぇ鐨勬柊鎸戞垬銆傚彟澶栵紝鐪嬪埌瀹樻柟鏂囨。璇達(dá)紝浠?.1.8鐗堟湰寮€濮嬶紝Mysql鎻愪緵浜?jiǎn)闄tatement Level鍜孯ow Level涔嬪鐨勭涓夌澶嶅埗妯″紡錛歁ixed錛屽疄闄呬笂灝辨槸鍓嶄袱縐嶆ā寮忕殑緇撳悎銆?/font>

From MySQL 5.1.12 to MySQL 5.1.28, mixed format is the default. Beginning with MySQL 5.1.29, statement-based format is the default.

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persister 2009-09-09 20:37 鍙戣〃璇勮
]]>MySQL Index</h1> persister — Thu, 20 Aug 2009 03:37:00 GMT  SequenceUtil.SequenceBank.fillBank] SQL Exception while executing the following: UPDATE SEQUENCE_VALUE_ITEM SET SEQ_ID=SEQ_ID+100 WHERE SEQ_NAME='Visit' Error was:Incorrect key file for table './ccbofbiz/sequence_value_item.MYI'; try to repair it Exception: java.sql.SQLException Message: Incorrect key file for table './ccbofbiz/sequence_value_item.MYI'; try to repair it 寰堝皯鐪嬪埌榪欐牱鐨勯敊璇紝浠婂ぉ琚垜紕板埌浜?jiǎn)锛屽搱鍝?br /> 榪愯濡備笅鍛戒護(hù)錛?br /> repair table SEQUENCE_VALUE_ITEM 鎴愬姛浜?jiǎn)锛岄潪甯歌涓嶉敊銆? <div align="right"><a style="text-decoration:none;" href="http://www.aygfsteel.com/persister/" target="_blank">persister</a> 2009-04-23 17:30 <a href="http://www.aygfsteel.com/persister/archive/2009/04/23/267192.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]> </article> <article> <h1>浠嶭iveJournal鍚庡彴鍙戝睍鐪嬪ぇ瑙勬ā緗戠珯鎬ц兘浼樺寲鏂規(guī)硶(鏃犲浘鐗囩増)</h1> persister — Fri, 05 Dec 2008 02:52:00 GMT </article> </main></body></html>