MySql数据库的操作日志介绍
时间：2010-03-15 来源：liyongfeng410799624
任何一种数据库中，都有各种各样的日志。Mysql也不例外，在Mysql中有4种不同的日志、分别错误日志、二进制日志、查询日志和慢查询日志。这些日志记录着Mysql数据库不同方面的踪迹。下文将介绍这4种不同的日志作用和用途。
一.错误日志
错误日志在Mysql数据库中很重要，它记录着mysqld启动和停止，以及服务器在运行过程中发生的任何错误的相关信息。
1.配置信息
--log-error=[file-name]用来指定错误日志存放的位置。
如果没有指定[file-name]，默认hostname.err做为文件名，默认存放在DATADIR目录中。
也可以将log-error配置到my.cnf文件中，这样就省去了每次在启动mysqld时都手工指定--log-error.例如:
[mysql@test2]$ vi /etc/my.cnf
# The MySQL server
[mysqld]
....
log-error = /var/lib/mysql/test2_mysqld.err
.....
2.错误信息样板
080313 05:21:55 mysqld started
080313 5:21:55 InnoDB: Started; log sequence number 0 43655
080313 5:21:55 [Note] /usr/local/mysql/bin/mysqld: ready for connections.
Version: '5.0.26-standard-log' socket: '/var/lib/mysql/mysql.sock' port: 3306 MySQL Community Edition - Standard (GPL)
080313 5:24:13 [Note] /usr/local/mysql/bin/mysqld: Normal shutdown
080313 5:24:13 InnoDB: Starting shutdown...
080313 5:24:16 InnoDB: Shutdown completed; log sequence number 0 43655
080313 5:24:16 [Note] /usr/local/mysql/bin/mysqld: Shutdown complete
080313 05:24:16 mysqld ended
080313 05:24:47 mysqld started
080313 5:24:47 InnoDB: Started; log sequence number 0 43655
080313 5:24:47 [Note] /usr/local/mysql/bin/mysqld: ready for connections.
Version: '5.0.26-standard-log' socket: '/var/lib/mysql/mysql.sock' port: 3306 MySQL Community Edition - Standard (GPL)
080313 5:33:49 [Note] /usr/local/mysql/bin/mysqld: Normal shutdown
三.查询日志 查询日志记录了clinet的所有的语句。 Note:由于log日志记录了数据库所有操作，对于访问频繁的系统，此种日志会造成性能影响，建议关闭。 1.配置信息 --log=[file-name]用来指定错误日志存放的位置。 如果没有指定[file-name]，默认为主机名(hostname)做为文件名，默认存放在DATADIR目录中。 也可以将log配置到my.cnf文件中，这样就省去了每次在启动mysqld时都手工指定--log.例如: # The MySQL server [mysqld] ...... #query-log log = /var/lib/mysql/query_log.log ...... 2.读取查询日志 查询日志是纯文本格可，可以使用OS文本读取工具直接打开查看。例如： [mysql@test2]$ tail -n 15 query_log.log 080313 7:58:28 17 Query show tables 080313 8:07:45 17 Quit 080313 10:01:48 18 Connect root@localhost on 080313 10:02:38 18 Query SELECT DATABASE() 18 Init DB test 080313 10:02:42 18 Query show tables 080313 10:03:07 18 Query select * from pet 080313 10:06:26 18 Query insert into pet values('hunter','yxyup','cat','f','1996-04-29',null) 080313 10:06:39 18 Query select * from pet 080313 10:07:13 18 Query update pet set sex='m' where name='hunter' 080313 10:07:38 18 Query delete from pet where name='hunter' 080313 10:13:48 18 Query desc test8 080313 10:14:13 18 Query create table t1(id int,name char(10)) 080313 10:14:41 18 Query alter table t1 add sex char(2)
[mysql@test2]$
四.慢查询日志 慢查询日志是记录了执行时间超过参数long_query_time(单位是秒)所设定值的SQL语句日志。 Note:慢查询日志对于我们发现性能有问题的SQL有很帮助，建议使用并经常分析 1.配置信息 --log-slow-queries=[file-name]用来指定错误日志存放的位置。 如果没有指定[file-name]，默认为hostname-slow.log做为文件名，默认存放在DATADIR目录中。 也可以将log-slow-queries配置到my.cnf文件中，这样就省去了每次在启动mysqld时都手工指定--log-slow-queries.例如: # The MySQL server [mysqld] ...... #slow-query-log log-slow-queries = /var/lib/mysql/slow_query_log.log ...... 2.读取慢查询日志 [mysql@test2]$ cat slow_query_log.log /usr/local/mysql/bin/mysqld, Version: 5.0.26-standard-log. started with: Tcp port: 3306 Unix socket: /var/lib/mysql/mysql.sock Time Id Command Argument # Time: 080313 5:41:46 # User@Host: root[root] @ localhost [] # Query_time: 108 Lock_time: 0 Rows_sent: 0 Rows_examined: 8738 use test; select count(1) from t1 a, t1 b,t1 c where a.id=b.id and b.name=c.name; # Time: 080313 5:52:04 # User@Host: root[root] @ localhost [] # Query_time: 583 Lock_time: 0 Rows_sent: 0 Rows_examined: 508521177 select count(1) from t1 a, t1 b where a.id=b.id; /usr/local/mysql/bin/mysqld, Version: 5.0.26-standard-log. started with: Tcp port: 3306 Unix socket: /var/lib/mysql/mysql.sock Time Id Command Argument # Time: 080313 10:39:59 # User@Host: root[root] @ localhost [] # Query_time: 11 Lock_time: 0 Rows_sent: 4537467 Rows_examined: 4537467 use test; select id from tail; 如果慢查询日志记录很多可以使用mysqldumpslow进行分类汇总 [mysql@test2]$ mysqldumpslow slow_query_log.log Reading mysql slow query log from slow_query_log.log Count: 1 Time=583.00s (583s) Lock=0.00s (0s) Rows=0.0 (0), root[root]@localhost select count(N) from t1 a, t1 b where a.id=b.id Count: 1 Time=108.00s (108s) Lock=0.00s (0s) Rows=0.0 (0), root[root]@localhost select count(N) from t1 a, t1 b,t1 c where a.id=b.id and b.name=c.name Count: 1 Time=11.00s (11s) Lock=0.00s (0s) Rows=4537467.0 (4537467), root[root]@localhost select id from tail; mysql有以下几种日志：
错误日志： -log-err
查询日志： -log
慢查询日志: -log-slow-queries
更新日志: -log-update
二进制日志： -log-bin
在mysql的安装目录下，打开my.ini,在后面加上上面的参数，保存后重启mysql服务就行了。
例如：
#Enter a name for the binary log. Otherwise a default name will be used.
#log-bin=
#Enter a name for the query log file. Otherwise a default name will be used.
#log=
#Enter a name for the error log file. Otherwise a default name will be used.
log-error=
#Enter a name for the update log file. Otherwise a default name will be used.
#log-update= 查看日至：
1. 首先确认你日志是否启用了
mysql>show variables like 'log_bin';
如果启用了，即ON
那日志文件就在mysql的安装目录的data目录下
cat/tail 日志文件名 2. 怎样知道当前的日志
mysql> show master status;
3. 查看从某一段时间到某一段时间的日志
mysqlbinlog --start-datetime='2008-01-19 00:00:00' --stop-datetime='2008-01-30 00:00:00' /var/log/mysql/mysql-bin.000006 > mysqllog1.log
附录： //显示所有本机上的二进制日志
mysql> SHOW MASTER LOGS;
//删除所有本机上的二进制日志
mysql> RESET MASTER;
//删除所有创建时间在binary-log.xxx之前的二进制日志
mysql> PURGE MASTER LOGS TO 'binary-log.xxx';
//只保留最近6天的日志，之前的都删掉
find /var/intra -type f -mtime +6 -name "*.log" -exec rm -f {} ;
//用键盘左上角（也就是Esc下面）那个键包围起来，说明是命令。-1d是昨天，以此类推-1m是上个月等等
day=`/bin/date -v -1d +%Y%m%d`;
//给文件改名
mv xxx.log xxx-${day}.log;
//这里还要加上数据库的用户名密码，作用是更新日志（包括二进制日志和查询日志等等）
mysqladmin flush-logs
二进制日志也通常被称为binlog,它记当着所有的DDL和DML，但不包括数据查询语句。 1.配置信息 --log-bin=[file-name]用来指定错误日志存放的位置。 如果没有指定[file-name]，默认为主机名后面跟-bin做为文件名，默认存放在DATADIR目录中。 也可以将log-bin配置到my.cnf文件中，这样就省去了每次在启动mysqld时都手工指定--log-bin.例如: # The MySQL server [mysqld] ...... log-bin = /var/lib/mysql/log-bin ...... 2.查看blnlog 由于binlog以是binary方式存取，不能直接查看，需要用mysql提供的mysqlbinlog工具查看。 3.删除binlog (1).用reset master命令删除所有日志，新日志重新从000001开始编号 (2).用purge master logs to 'mysq-bin.******' 命令可以删除指定编号前的所有日志 (3).用purge master logs to before 'YYYY-MM-DD HH24:MI:SS'命令可以删除'YYYY-MM-DD HH24:MI:SS'之前的产生的所有日志 (4).可以在my.cnf中指定--expire_logs_days=#，此参数设置了binlog日志的过期天数 4.测试案例 [mysql@test2]$ mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or g. Your MySQL connection id is 18 to server version: 5.0.26-standard-log Type 'help;' or 'h' for help. Type 'c' to clear the buffer. mysql> use test; Database changed mysql> select * from pet; +----------+--------+---------+------+------------+------------+ | name | owner | species | sex | birth | death | +----------+--------+---------+------+------------+------------+ | Fluffy | Harold | cat | f | 1993-02-04 | NULL | | Claws | Gwen | cat | m | 1994-03-17 | NULL | | Buffy | Harold | dog | f | 1989-05-13 | NULL | | Fang | Benny | dog | m | 1990-08-27 | NULL | | Bowser | Diane | dog | m | 1979-08-31 | 1995-07-29 | | Chirpy | Gwen | bird | f | 1998-09-11 | NULL | | Whistler | Gwen | bird | NULL | 1997-12-09 | NULL | | Slim | Benny | snake | m | 1996-04-29 | NULL | +----------+--------+---------+------+------------+------------+ 8 rows in set (0.06 sec) mysql> insert into pet values('hunter','yxyup','cat','f','1996-04-29',null); Query OK, 1 row affected (0.03 sec) mysql> select * from pet; +----------+--------+---------+------+------------+------------+ | name | owner | species | sex | birth | death | +----------+--------+---------+------+------------+------------+ | Fluffy | Harold | cat | f | 1993-02-04 | NULL | | Claws | Gwen | cat | m | 1994-03-17 | NULL | | Buffy | Harold | dog | f | 1989-05-13 | NULL | | Fang | Benny | dog | m | 1990-08-27 | NULL | | Bowser | Diane | dog | m | 1979-08-31 | 1995-07-29 | | Chirpy | Gwen | bird | f | 1998-09-11 | NULL | | Whistler | Gwen | bird | NULL | 1997-12-09 | NULL | | Slim | Benny | snake | m | 1996-04-29 | NULL | | hunter | yxyup | cat | f | 1996-04-29 | NULL | +----------+--------+---------+------+------------+------------+ 9 rows in set (0.00 sec) mysql> update pet set sex='m' where name='hunter'; Query OK, 1 row affected (0.00 sec) Rows matched: 1 Changed: 1 Warnings: 0 mysql> delete from pet where name='hunter'; Query OK, 1 row affected (0.00 sec) [mysql@test2]$ mysqlbinlog log-bin.000002 /*!40019 SET @@session.max_insert_delayed_threads=0*/; /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/; # at 4 #080313 7:52:47 server id 1 end_log_pos 98 Start: binlog v 4, server v 5.0.26-standard-log created 080313 7:52:47 # Warning: this binlog was not closed properly. Most probably mysqld crashed writing it. # at 98 #080313 10:06:26 server id 1 end_log_pos 229 Query thread_id=18 exec_time=0 error_code=0 use test; SET TIMESTAMP=1205373986; SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1; SET @@session.sql_mode=0; /*!C latin1 */; SET @@session.character_set_client=8,@@session.collation_connection=8,@@session.collation_server=8; insert into pet values('hunter','yxyup','cat','f','1996-04-29',null); # at 229 #080313 10:07:13 server id 1 end_log_pos 334 Query thread_id=18 exec_time=0 error_code=0 SET TIMESTAMP=1205374033; update pet set sex='m' where name='hunter'; # at 334 #080313 10:07:38 server id 1 end_log_pos 432 Query thread_id=18 exec_time=0 error_code=0 SET TIMESTAMP=1205374058; delete from pet where name='hunter'; # at 432 #080313 10:14:13 server id 1 end_log_pos 532 Query thread_id=18 exec_time=0 error_code=0 SET TIMESTAMP=1205374453; create table t1(id int,name char(10)); # at 532 #080313 10:14:41 server id 1 end_log_pos 625 Query thread_id=18 exec_time=0 error_code=0 SET TIMESTAMP=1205374481; alter table t1 add sex char(2); # End of log file ROLLBACK /* added by mysqlbinlog */; /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/; [mysql@test2]$ 可以看出，三条DML操作和两条DDL都记录到了binlog中了，而select并没有记录。 ---★ 本文转摘自『IT学习者』→ http://www.itlearner.com/article/4439
三.查询日志 查询日志记录了clinet的所有的语句。 Note:由于log日志记录了数据库所有操作，对于访问频繁的系统，此种日志会造成性能影响，建议关闭。 1.配置信息 --log=[file-name]用来指定错误日志存放的位置。 如果没有指定[file-name]，默认为主机名(hostname)做为文件名，默认存放在DATADIR目录中。 也可以将log配置到my.cnf文件中，这样就省去了每次在启动mysqld时都手工指定--log.例如: # The MySQL server [mysqld] ...... #query-log log = /var/lib/mysql/query_log.log ...... 2.读取查询日志 查询日志是纯文本格可，可以使用OS文本读取工具直接打开查看。例如： [mysql@test2]$ tail -n 15 query_log.log 080313 7:58:28 17 Query show tables 080313 8:07:45 17 Quit 080313 10:01:48 18 Connect root@localhost on 080313 10:02:38 18 Query SELECT DATABASE() 18 Init DB test 080313 10:02:42 18 Query show tables 080313 10:03:07 18 Query select * from pet 080313 10:06:26 18 Query insert into pet values('hunter','yxyup','cat','f','1996-04-29',null) 080313 10:06:39 18 Query select * from pet 080313 10:07:13 18 Query update pet set sex='m' where name='hunter' 080313 10:07:38 18 Query delete from pet where name='hunter' 080313 10:13:48 18 Query desc test8 080313 10:14:13 18 Query create table t1(id int,name char(10)) 080313 10:14:41 18 Query alter table t1 add sex char(2)
[mysql@test2]$
四.慢查询日志 慢查询日志是记录了执行时间超过参数long_query_time(单位是秒)所设定值的SQL语句日志。 Note:慢查询日志对于我们发现性能有问题的SQL有很帮助，建议使用并经常分析 1.配置信息 --log-slow-queries=[file-name]用来指定错误日志存放的位置。 如果没有指定[file-name]，默认为hostname-slow.log做为文件名，默认存放在DATADIR目录中。 也可以将log-slow-queries配置到my.cnf文件中，这样就省去了每次在启动mysqld时都手工指定--log-slow-queries.例如: # The MySQL server [mysqld] ...... #slow-query-log log-slow-queries = /var/lib/mysql/slow_query_log.log ...... 2.读取慢查询日志 [mysql@test2]$ cat slow_query_log.log /usr/local/mysql/bin/mysqld, Version: 5.0.26-standard-log. started with: Tcp port: 3306 Unix socket: /var/lib/mysql/mysql.sock Time Id Command Argument # Time: 080313 5:41:46 # User@Host: root[root] @ localhost [] # Query_time: 108 Lock_time: 0 Rows_sent: 0 Rows_examined: 8738 use test; select count(1) from t1 a, t1 b,t1 c where a.id=b.id and b.name=c.name; # Time: 080313 5:52:04 # User@Host: root[root] @ localhost [] # Query_time: 583 Lock_time: 0 Rows_sent: 0 Rows_examined: 508521177 select count(1) from t1 a, t1 b where a.id=b.id; /usr/local/mysql/bin/mysqld, Version: 5.0.26-standard-log. started with: Tcp port: 3306 Unix socket: /var/lib/mysql/mysql.sock Time Id Command Argument # Time: 080313 10:39:59 # User@Host: root[root] @ localhost [] # Query_time: 11 Lock_time: 0 Rows_sent: 4537467 Rows_examined: 4537467 use test; select id from tail; 如果慢查询日志记录很多可以使用mysqldumpslow进行分类汇总 [mysql@test2]$ mysqldumpslow slow_query_log.log Reading mysql slow query log from slow_query_log.log Count: 1 Time=583.00s (583s) Lock=0.00s (0s) Rows=0.0 (0), root[root]@localhost select count(N) from t1 a, t1 b where a.id=b.id Count: 1 Time=108.00s (108s) Lock=0.00s (0s) Rows=0.0 (0), root[root]@localhost select count(N) from t1 a, t1 b,t1 c where a.id=b.id and b.name=c.name Count: 1 Time=11.00s (11s) Lock=0.00s (0s) Rows=4537467.0 (4537467), root[root]@localhost select id from tail; mysql有以下几种日志：
错误日志： -log-err
查询日志： -log
慢查询日志: -log-slow-queries
更新日志: -log-update
二进制日志： -log-bin
在mysql的安装目录下，打开my.ini,在后面加上上面的参数，保存后重启mysql服务就行了。
例如：
#Enter a name for the binary log. Otherwise a default name will be used.
#log-bin=
#Enter a name for the query log file. Otherwise a default name will be used.
#log=
#Enter a name for the error log file. Otherwise a default name will be used.
log-error=
#Enter a name for the update log file. Otherwise a default name will be used.
#log-update= 查看日至：
1. 首先确认你日志是否启用了
mysql>show variables like 'log_bin';
如果启用了，即ON
那日志文件就在mysql的安装目录的data目录下
cat/tail 日志文件名 2. 怎样知道当前的日志
mysql> show master status;
3. 查看从某一段时间到某一段时间的日志
mysqlbinlog --start-datetime='2008-01-19 00:00:00' --stop-datetime='2008-01-30 00:00:00' /var/log/mysql/mysql-bin.000006 > mysqllog1.log
附录： //显示所有本机上的二进制日志
mysql> SHOW MASTER LOGS;
//删除所有本机上的二进制日志
mysql> RESET MASTER;
//删除所有创建时间在binary-log.xxx之前的二进制日志
mysql> PURGE MASTER LOGS TO 'binary-log.xxx';
//只保留最近6天的日志，之前的都删掉
find /var/intra -type f -mtime +6 -name "*.log" -exec rm -f {} ;
//用键盘左上角（也就是Esc下面）那个键包围起来，说明是命令。-1d是昨天，以此类推-1m是上个月等等
day=`/bin/date -v -1d +%Y%m%d`;
//给文件改名
mv xxx.log xxx-${day}.log;
//这里还要加上数据库的用户名密码，作用是更新日志（包括二进制日志和查询日志等等）
mysqladmin flush-logs
二进制日志也通常被称为binlog,它记当着所有的DDL和DML，但不包括数据查询语句。 1.配置信息 --log-bin=[file-name]用来指定错误日志存放的位置。 如果没有指定[file-name]，默认为主机名后面跟-bin做为文件名，默认存放在DATADIR目录中。 也可以将log-bin配置到my.cnf文件中，这样就省去了每次在启动mysqld时都手工指定--log-bin.例如: # The MySQL server [mysqld] ...... log-bin = /var/lib/mysql/log-bin ...... 2.查看blnlog 由于binlog以是binary方式存取，不能直接查看，需要用mysql提供的mysqlbinlog工具查看。 3.删除binlog (1).用reset master命令删除所有日志，新日志重新从000001开始编号 (2).用purge master logs to 'mysq-bin.******' 命令可以删除指定编号前的所有日志 (3).用purge master logs to before 'YYYY-MM-DD HH24:MI:SS'命令可以删除'YYYY-MM-DD HH24:MI:SS'之前的产生的所有日志 (4).可以在my.cnf中指定--expire_logs_days=#，此参数设置了binlog日志的过期天数 4.测试案例 [mysql@test2]$ mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or g. Your MySQL connection id is 18 to server version: 5.0.26-standard-log Type 'help;' or 'h' for help. Type 'c' to clear the buffer. mysql> use test; Database changed mysql> select * from pet; +----------+--------+---------+------+------------+------------+ | name | owner | species | sex | birth | death | +----------+--------+---------+------+------------+------------+ | Fluffy | Harold | cat | f | 1993-02-04 | NULL | | Claws | Gwen | cat | m | 1994-03-17 | NULL | | Buffy | Harold | dog | f | 1989-05-13 | NULL | | Fang | Benny | dog | m | 1990-08-27 | NULL | | Bowser | Diane | dog | m | 1979-08-31 | 1995-07-29 | | Chirpy | Gwen | bird | f | 1998-09-11 | NULL | | Whistler | Gwen | bird | NULL | 1997-12-09 | NULL | | Slim | Benny | snake | m | 1996-04-29 | NULL | +----------+--------+---------+------+------------+------------+ 8 rows in set (0.06 sec) mysql> insert into pet values('hunter','yxyup','cat','f','1996-04-29',null); Query OK, 1 row affected (0.03 sec) mysql> select * from pet; +----------+--------+---------+------+------------+------------+ | name | owner | species | sex | birth | death | +----------+--------+---------+------+------------+------------+ | Fluffy | Harold | cat | f | 1993-02-04 | NULL | | Claws | Gwen | cat | m | 1994-03-17 | NULL | | Buffy | Harold | dog | f | 1989-05-13 | NULL | | Fang | Benny | dog | m | 1990-08-27 | NULL | | Bowser | Diane | dog | m | 1979-08-31 | 1995-07-29 | | Chirpy | Gwen | bird | f | 1998-09-11 | NULL | | Whistler | Gwen | bird | NULL | 1997-12-09 | NULL | | Slim | Benny | snake | m | 1996-04-29 | NULL | | hunter | yxyup | cat | f | 1996-04-29 | NULL | +----------+--------+---------+------+------------+------------+ 9 rows in set (0.00 sec) mysql> update pet set sex='m' where name='hunter'; Query OK, 1 row affected (0.00 sec) Rows matched: 1 Changed: 1 Warnings: 0 mysql> delete from pet where name='hunter'; Query OK, 1 row affected (0.00 sec) [mysql@test2]$ mysqlbinlog log-bin.000002 /*!40019 SET @@session.max_insert_delayed_threads=0*/; /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/; # at 4 #080313 7:52:47 server id 1 end_log_pos 98 Start: binlog v 4, server v 5.0.26-standard-log created 080313 7:52:47 # Warning: this binlog was not closed properly. Most probably mysqld crashed writing it. # at 98 #080313 10:06:26 server id 1 end_log_pos 229 Query thread_id=18 exec_time=0 error_code=0 use test; SET TIMESTAMP=1205373986; SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1; SET @@session.sql_mode=0; /*!C latin1 */; SET @@session.character_set_client=8,@@session.collation_connection=8,@@session.collation_server=8; insert into pet values('hunter','yxyup','cat','f','1996-04-29',null); # at 229 #080313 10:07:13 server id 1 end_log_pos 334 Query thread_id=18 exec_time=0 error_code=0 SET TIMESTAMP=1205374033; update pet set sex='m' where name='hunter'; # at 334 #080313 10:07:38 server id 1 end_log_pos 432 Query thread_id=18 exec_time=0 error_code=0 SET TIMESTAMP=1205374058; delete from pet where name='hunter'; # at 432 #080313 10:14:13 server id 1 end_log_pos 532 Query thread_id=18 exec_time=0 error_code=0 SET TIMESTAMP=1205374453; create table t1(id int,name char(10)); # at 532 #080313 10:14:41 server id 1 end_log_pos 625 Query thread_id=18 exec_time=0 error_code=0 SET TIMESTAMP=1205374481; alter table t1 add sex char(2); # End of log file ROLLBACK /* added by mysqlbinlog */; /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/; [mysql@test2]$ 可以看出，三条DML操作和两条DDL都记录到了binlog中了，而select并没有记录。 ---★ 本文转摘自『IT学习者』→ http://www.itlearner.com/article/4439
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