恢复数据的重要命令如下 mysql> flush logs; 默认的日志是mysql-bin.000001,现在刷新了重新开启一个就多了一个mysql-bin.000002 ./mysqlbinlog --no-defaults binlog日志名,来查看日志 [root@localhost bin]# ./mysqlbinlog --no-defaults ../var/mysql-bin.000001 | more //查看bin-log日志的内容 [root@localhost bin]# ./mysqlbinlog --no-defaults ../var/mysql-bin.000001 | ./mysql -uroot -p //恢复mysql-bin.000001日志的内容 如果需要从某个点恢复到某个点,用以下操作 定位: --start-position 开始点 --stop-position 结束点 --start-date 开始时间 --stop-date 结束时间 现在恢复mysql-bin.000002恢复,从134点开始到386结束 [root@localhost bin]# ./mysqlbinlog --no-defaults --start-position 134 --stop-position=386 ../var/mysql-bin.000002 | ./mysql -uroot -p /** mysqlbinlog日志恢复数据实验 ****/ //查看一下var下面的内容,现在是没有mysql-log.000001类似的binlog日志的 [root@localhost var]# ls brocms ibdata1 ib_logfile1 localhost.pid mysql-bin.index brotherblog ib_logfile0 localhost.err mysql test [root@localhost var]# ../bin/mysql -uroot -p //登录数据库 mysql> use test; //使用test数据库 mysql> flush logs; //刷新binlog日志,新开一个,现在会在var目录下面生成一个mysql-bin.000001的文件,以下的操作都会记录其中 //创建一个表 mysql> create table user( -> id int auto_increment primary key, -> username char(30), -> password char(32)) -> engine=myisam default charset=utf8; //插入几条测试数据 mysql> insert into user(username,password) values(1,2); mysql> insert into user(username,password) values(1,2); mysql> insert into user(username,password) values(1,2); //新开一个binlog日志,现在会生成一个名为mysql-bin.000002的文件,下面的操作会记录在mysql-bin.000002的文件中 mysql> flush logs; //查询一下内容 mysql> select * from user; +----+----------+----------+ | id | username | password | +----+----------+----------+ | 1 | 1 | 2 | | 2 | 1 | 2 | | 3 | 1 | 2 | +----+----------+----------+ mysql> delete from user; //现在将数据删除 mysql> drop table user; //将表删除 mysql> select * from user; //查看表里面的内容 mysql> \q [root@localhost var]# ls brocms ibdata1 ib_logfile1 localhost.pid mysql-bin.000001 mysql-bin.index brotherblog ib_logfile0 localhost.err mysql mysql-bin.000002 test [root@localhost var]# ../bin/mysqlbinlog --no-defaults mysql-bin.000001 | more //查看mysql-bin.000001里面的内容 [root@localhost var]# ../bin/mysqlbinlog --no-defaults mysql-bin.000002 | more //查看mysql-bin.000002里面的内容 [root@localhost var]# ../bin/mysqlbinlog --no-defaults mysql-bin.000001 | ../bin/mysql -uroot -p //用mysql-bin.000001来恢复数据 Enter password: [root@localhost var]# ../bin/mysql -uroot -p //进数据库查看 mysql> use test; mysql> show tables; +----------------+ | Tables_in_test | +----------------+ | user | +----------------+ 1 row in set (0.00 sec) mysql> select * from user; //查看数据,数据回来了 +----+----------+----------+ | id | username | password | +----+----------+----------+ | 1 | 1 | 2 | | 2 | 1 | 2 | | 3 | 1 | 2 | +----+----------+----------+ 3 rows in set (0.00 sec) mysql> \q 如果需要从某个点恢复到某个点,用以下操作 定位: --start-position 开始点 --stop-position 结束点 --start-date 开始时间 --stop-date 结束时间 现在恢复mysql-bin.000002恢复,从134点开始到386结束 [root@localhost bin]# ./mysqlbinlog --no-defaults --start-position 134 --stop-position=386 ../var/mysql-bin.000002 | ./mysql -uroot -p (责任编辑:IT) |