mysql> show global variables like '%bin%';
+---------------------------------+----------------------+
| Variable_name | Value |
+---------------------------------+----------------------+
| binlog_cache_size | 32768 |
| innodb_locks_unsafe_for_binlog | OFF |
| log_bin | ON |
| log_bin_trust_function_creators | OFF |
| max_binlog_cache_size | 18446744073709547520 |
| max_binlog_size | 104857600 |
| sync_binlog | 0 |
+---------------------------------+----------------------+
7 rows in set (0.00 sec)
如果使用了配置文件，则可以修改 /etc/my.cnf 把里面的log-bin这一行注释掉，重启mysql服务即可关闭bin日志的记录。
如果没有主从复制，可以通过reset master的方式，重置数据库日志，清除之前的日志文件：
mysql> reset master;
Query OK, 0 rows affected (8.51 sec)
但是如果存在复制关系，应当通过PURGE的方式来清理bin日志：
语法如下：
PURGE {MASTER | BINARY} LOGS TO 'log_name'
PURGE {MASTER | BINARY} LOGS BEFORE 'date'
用于删除列于在指定的日志或日期之前的日志索引中的所有二进制日志。这些日志也会从记录在日志索引文件中的清单中被删除，这样被给定的日志成为第一个。
例如：
PURGE MASTER LOGS TO 'mysql-bin.010';
PURGE MASTER LOGS BEFORE '2008-06-23 15:00:00';
BINLOG就是一个记录SQL语句的过程，和普通的LOG一样。不过只是她是二进制存储，普通的是十进制存储罢了。
1、配置文件里要写的东西：
[mysqld]
log-bin=mysql-bin(名字可以改成自己的，如果不改名字的话，默认是以主机名字命名)
重新启动MSYQL服务。
二进制文件里面的东西显示的就是执行所有语句的详细记录，当然一些语句不被记录在内，要了解详细的，见手册页。
2、查看自己的BINLOG的名字是什么。
show binlog events;
query result(1 records)
| Log_name | Pos | Event_type | Server_id | End_log_pos | Info |
| yueliangdao_binglog.000001 | 4 | Format_desc | 1 | 106 | Server ver: 5.1.22-rc-community-log, Binlog ver: 4 |
3、我做了几次操作后，她就记录了下来。
又一次 show binlog events 的结果。
query result(4 records)
| Log_name | Pos | Event_type | Server_id | End_log_pos | Info |
| yueliangdao_binglog.000001 | 4 | Format_desc | 1 | 106 | Server ver: 5.1.22-rc-community-log, Binlog ver: 4 |
| yueliangdao_binglog.000001 | 106 | Intvar | 1 | 134 | INSERT_ID=1 |
| yueliangdao_binglog.000001 | 134 | Query | 1 | 254 | use `test`; create table a1(id int not null auto_increment primary key, str varchar(1000)) engine=myisam |
| yueliangdao_binglog.000001 | 254 | Query | 1 | 330 | use `test`; insert into a1(str) values ('I love you'),('You love me') |
| yueliangdao_binglog.000001 | 330 | Query | 1 | 485 | use `test`; drop table a1 |
4、用mysqlbinlog 工具来显示记录的二进制结果，然后导入到文本文件，为了以后的恢复。
详细过程如下：
D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=4 --stop-position=106 yueliangd
ao_binglog.000001 > c:\\test1.txt
test1.txt的文件内容：
/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 4
#7122 16:9:18 server id 1 end_log_pos 106 Start: binlog v 4, server v 5.1.22-rc-community-log created 7122 16:9:18 at startup
# Warning: this binlog was not closed properly. Most probably mysqld crashed writing it.
ROLLBACK/*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
第二行的记录：
D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=106 --stop-position=134 yuelian
gdao_binglog.000001 > c:\\test1.txt
test1.txt内容如下：
/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 106
#7122 16:22:36 server id 1 end_log_pos 134 Intvar
SET INSERT_ID=1/*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
第三行记录：
D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=134 --stop-position=254 yuelian
gdao_binglog.000001 > c:\\test1.txt
内容：
/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 134
#7122 16:55:31 server id 1 end_log_pos 254 Query thread_id=1 exec_time=0 error_code=0
use test/*!*/;
SET TIMESTAMP=1196585731/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1/*!*/;
SET @@session.sql_mode=1344274432/*!*/;
/*!\C utf8 *//*!*/;
SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=33/*!*/;
create table a1(id int not null auto_increment primary key,
str varchar(1000)) engine=myisam/*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
/*!40019 SET @@session.max_insert_delayed_threads=0*/;
第四行的记录：
D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=254 --stop-position=330 yuelian
gdao_binglog.000001 > c:\\test1.txt
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 254
#7122 16:22:36 server id 1 end_log_pos 330 Query thread_id=1 exec_time=0 error_code=0
use test/*!*/;
SET TIMESTAMP=1196583756/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1/*!*/;
SET @@session.sql_mode=1344274432/*!*/;
/*!\C utf8 *//*!*/;
SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=33/*!*/;
use `test`; insert into a1(str) values ('I love you'),('You love me')/*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
5、查看这些东西是为了恢复数据，而不是为了好玩。所以我们最中还是为了要导入结果到MYSQL中。
D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=134 --stop-position=330 yuelian
gdao_binglog.000001 | mysql -uroot -p
或者
D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=134 --stop-position=330 yuelian
gdao_binglog.000001 >test1.txt
进入MYSQL导入
mysql> source c:\\test1.txt
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Database changed
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Charset changed
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.03 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
6、查看数据：
mysql> show tables;
+----------------+
| Tables_in_test |
+----------------+
| a1 |
+----------------+
1 row in set (0.01 sec)
mysql> select * from a1;
+----+-------------+
| id | str |
+----+-------------+
| 1 | I love you |
| 2 | You love me |
+----+-------------+
2 rows in set (0.00 sec)
./mysqlbinlog /usr/local/mysql/data/mysql-bin.000001 > /opt/001.sql