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最近发表
- ORA-00756 ORA-10567故障数据0丢失恢复
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- ORA-01171: datafile N going offline due to error advancing checkpoint
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- ORA-600 ksvworkmsgalloc: bad reaper
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- Oracle Recovery Tools恢复案例总结—202505
- ORA-600 kddummy_blkchk 数据库循环重启
- 记录一次asm disk加入到vg通过恢复直接open库的案例
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- Oracle Recovery Tools修复ORA-00742、ORA-600 ktbair2: illegal inheritance故障
- 可能是 tempdb 空间用尽或某个系统表不一致故障处理
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- [MY-013183] [InnoDB] Assertion failure故障处理
月归档:一月 2011
mysql 查询表相关语句
1、查询表结构
desc tablename;
show full columns from tablename;
select * from information_schema.columns where table_name=’tablename’;
2、查询表相关信息
select * from information_schema.tables where table_name=’tablename’;
3、查询列编码
select table_schema,table_name,column_name,character_set_name,collation_name from information_schema.columns where table_name=’tablename’;
4、查询表编码
select table_name,table_collation from information_schema.tables where table_name=’tablename’;
发表在 MySQL
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使用goldengate同步oracle
一、source端
add extract extl,tranlog,begin now ADD EXTTRAIL /u01/ogg/dirdat/lr, EXTRACT EXTL ADD TRANDATA chf.objce_t edit params extl extract extl userid ogg,password xifenfei exttrail /u01/ogg/dirdat/lr dynamicresolution gettruncates table chf.objce_t; ADD EXTRACT pump1, EXTTRAILSOURCE /u01/ogg/dirdat/lr, BEGIN now add rmttrail /u01/ogg/dirdat/rl extract pump1 edit params pump1 extract pump1 userid ogg, password xifenfei rmthost 192.168.1.111, mgrport 7809 rmttrail /u01/ogg/dirdat/rl PASSTHRU gettruncates table chf.objce_t;
二、target端
edit params ./GLOBALS CHECKPOINTTABLE ogg.chkpoint dblogin userid ogg,password xifenfei ADD CHECKPOINTTABLE ogg.chkpoint add replicat repl exttrail /u01/ogg/dirdat/rl,begin now,checkpointtable ogg.chkpoint edit params repl replicat repl userid ogg,password xifenfei assumetargetdefs reperror default,discard discardfile /tmp/repsz.dsc,append,megabytes 100 gettruncates map chf.objce_t, target chf.objce_t;
发表在 GoldenGate
2 条评论
使用goldengate同步mysql
一、source端
add extract extl,vam,begin now ADD EXTTRAIL F:\ogg\mysql\dirdat\rl, EXTRACT EXTL edit params extl extract extl sourcedb test@localhost:3306,userid root,password xifenfei exttrail F:\ogg\mysql\dirdat\rl dynamicresolution gettruncates table test.t_1; add EXTRACT pump1, EXTTRAILSOURCE F:\ogg\mysql\dirdat\rl, BEGIN now add rmttrail /ogg/mysql/dirdat/rl extract pump1 edit params pump1 extract pump1 rmthost 192.168.1.111,mgrport 7808 rmttrail /ogg/mysql/dirdat/rl PASSTHRU gettruncates table test.t_1;
二、target端
edit params ./GLOBALS dblogin sourcedb test@localhost:3306,userid root,password xifenfei CHECKPOINTTABLE ogg.chkpoint ADD CHECKPOINTTABLE ogg.chkpoint add replicat repl exttrail /ogg/mysql/dirdat/rl,begin now,checkpointtable ogg.chkpoint edit params repl replicat repl DBOPTIONS HOST 127.0.0.1, CONNECTIONPORT 3306 TARGETDB test,userid root,password xifenfei assumetargetdefs reperror default,discard discardfile /tmp/mysql.dsc,append,megabytes 100 gettruncates map TEST.T_1, target "test.t_1";
三、说明
本实例是win 中的mysql同步到linux中的mysql
有个注意点:
1、add extract extl,vam,begin now 不像oracle中的tranlog
2、注意各个参数中schema.tablename大小写问题
1)win中不区分,全部使用小写会自动转换为大写
2)在replicate参数中,因为map是从win中的data pump中得到,所以map后面的schema.tablename需要大写
3)在replicate参数中,因为table是linux中的对应linux中的数据库名和表名(mysql是以文件形式存储,一般均为小写),所以map后面的schema.tablename需要小写+双引号,防止转为大写
3、注意mysql数据库编码
四、与oracle不同之处
1、登录
dblogin sourcedb dbname@localhost:3306,userid root,password xifenfei
2、Extract中访问mysql
sourcedb dbname@localhost:3306,userid root,password xifenfei
3、Replicat中访问mysql
DBOPTIONS HOST 127.0.0.1, CONNECTIONPORT 3306
TARGETDB dbname,userid root,password xifenfei
发表在 GoldenGate
2 条评论