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What should I do if mysql data is accidentally deleted?

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Release: 2020-10-29 16:22:05
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mysql数据意外删除的解决办法:首先在数据库文件存放的data目录里找到【mysql-bin.00000x】文件;然后导出成txt格式;最后输入相关语句进行恢复数据。

What should I do if mysql data is accidentally deleted?

mysql数据意外删除的解决办法:

1、先确认mysql有没有启用bin日志 ,就是看下mysql.ini(my.cnf)里的log-bin=mysql-bin, 可以 自定义一个目录和前缀名,比如/data/log/mylog这样。

2、然后在数据库文件存放的data目录就能看到mysql-bin.00000x这样的文件,这就是二进制日志了,可以导出成txt格式的,里面其实就是对数据库的各种操作sql语句。

3、导出txt文件:

e:\wamp\bin\mysql\mysql5.6.12\bin>mysqlbinlog
--database=testdatabase
e:\wamp\bin\mysql\mysql5.6.12\data\mysql-bin.000312
>
c:\\test1.txt
Copy after login

这是windows下的导出,linux也是类似的。

database=数据库名

从最早的日志还始还原

linux下可以很方便的 mysql-bin.000*

可以加参数开始时间和结束时间,就是你执行那条sql语句的时间

start-datetime="2014-12-04
11:25:56"
--stop-datetime="2014-12-04
13:23:50"
Copy after login

4、恢复数据:

e:\wamp\bin\mysql\mysql5.6.12\bin>mysqlbinlog
--database=yundongchao
e:\wamp\bin\mysql\mysql5.6.12\data\mysql-bin.000179
|
mysql
-u
root
-p
Copy after login

更多相关免费学习推荐:mysql教程(视频)

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