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.txt sed -i 's/### //g' 2.txt
使用以下脚本生成 INSERT 语句
[root@mysql03 tmp]# cat r2.sh #!/bin/bash vs="" while read line do 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 fi done < 2.txt [root@mysql03 tmp]# sh r2.sh
将数据导入到 MySQL 表中
[root@mysql03 tmp]# mysql < 3.txt mysql> select count(*) from sbtest1; ---------- | count(*) | ---------- | 1000 | ---------- 1 row in set (0.00 sec)
