Mysql数据库回滚操作
Mysql回归,不小心删表的恢复
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参考: https://blog.51cto.com/zhanx/2416449
https://blog.csdn.net/u013895577/article/details/109493700
1.确保数据库开启了log_bin
show variables like 'log_bin';
+-------------+-----+
|Variable_name|Value|
+-------------+-----+
|log_bin |ON |
+-------------+-----+
my.cnf配置文件添加配置开启:
log_bin = mysql-bin
binlog_format = mixed
expire_logs_days = 7
2.查看最新的binlog文件
mysql> show master status;
+-------------+---------+------------+----------------+-----------------+
|File |Position |Binlog_Do_DB|Binlog_Ignore_DB|Executed_Gtid_Set|
+-------------+---------+------------+----------------+-----------------+
|binlog.000010|120507544| | | |
+-------------+---------+------------+----------------+-----------------+
3.binlog一般默认在/var/lib/mysql下,找到上述查询到的最新文件binlog.000010
根据要回滚的大致时间查询定位
mysqlbinlog --no-defaults --database=www_sentgon_com --start-datetime="2022-06-21 09:00:00" --stop-datetime="2022-06-22 13:00:00" /data/mysql/binlog.000010
4.根据查询到的定位生成sql
mysqlbinlog --no-defaults --database=www_sentgon_com --start-datetime="2022-06-21 09:00:00" --stop-datetime="2022-06-22 13:00:00" /data/mysql/binlog.000010 > /home/rollback.sql
或者,通过位置编号设定范围
mysqlbinlog --no-defaults --start-position="239" --stop-position="736" /data/mysql/binlog.000010 > /home/rollback.sql
5.执行sql恢复数据库
mysqlbinlog --start-position=0 --stop-position=45325593 /data/mysql/binlog.000010 | mysql -utest -p
如果是通过日期时间回滚的命令如下:
mysqlbinlog --start-datetime '2019-07-02 21:42:36' --stop-datetime '2019-07-02 21:57:42' /data/mysql/binlog.000010 | mysql -utest -p
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