通过 MySQL 二进制日志恢复删除的记录

删除 MySQL 表中的数据

mysql> use sbtest;mysql> select count(*) from sbtest1;+----------+| count(*) |+----------+|     1000 |+----------+1 row in set (0.00 sec)mysql> delete from sbtest1;Query OK, 1000 rows affected (0.21 sec)mysql> select count(*) from sbtest1;+----------+| count(*) |+----------+|        0 |+----------+1 row in set (0.00 sec)

确认时间点和当前二进制日志文件，从二进制日志中读取操作记录

mysqlbinlog /--start-datetime="2018-09-27 15:55:00" /--stop-datetime="2018-09-27 15:00:00" /--base64-output=decode-rows /--result-file=result.sql /-v /var/lib/mysql/binlog.000022

其中的一条记录

去除不相关的内容

grep -A 5 "DELETE FROM /`sbtest/`./`sbtest1/`" result.sql > 1.txt

提取数据

grep "=" 1.txt > 2.txtsed -i 's/###   //g' 2.txt 

使用以下脚本生成 INSERT 语句

[root@mysql03 tmp]# cat r2.sh #!/bin/bashvs=""while read linedo    n=`echo $line | awk -NF "=" '{print $1}'`    v=`echo $line | awk -NF "=" '{print $2}'`    if [ "$n" = "@1" ]; then        vs="INSERT INTO /`sbtest/`./`sbtest1/` VALUES("$v    elif [ "$n" = "@2" ]; then        vs=$vs" , "$v    elif [ "$n" = "@3" ]; then        vs=$vs" , "$v    elif [ "$n" = "@4" ]; then        vs=$vs" , "$v");"        echo $vs >> 3.txt    fidone < 2.txt[root@mysql03 tmp]# sh r2.sh 

将数据导入到 MySQL 表中

[root@mysql03 tmp]# mysql < 3.txtmysql> select count(*) from sbtest1;+----------+| count(*) |+----------+|     1000 |+----------+1 row in set (0.00 sec)