1.查找當前有哪些二進制日志文件：

mysql> show binary logs;

+------------------+-----------+

| Log_name???????? | File_size |

+------------------+-----------+

| mysql-bin.000001 |?? 1357315 |

| mysql-bin.000002 |?????? 117 |

| mysql-bin.000003 |??? 404002 |

| mysql-bin.000004 |?? 2050722 |

| mysql-bin.000005 |??? 139103 |

| mysql-bin.000006 |???? 46702 |

| mysql-bin.000007 |?????? 117 |

| mysql-bin.000008 |??????? 98 |

| mysql-bin.000009 |?????? 117 |

| mysql-bin.000010 |????? 1254 |

| mysql-bin.000011 |?????? 117 |

| mysql-bin.000012 |? 29394942 |

| mysql-bin.000013 |??? 422100 |

| mysql-bin.000014 |?????? 117 |

| mysql-bin.000015 |?????? 117 |

| mysql-bin.000016 |??????? 98 |

| mysql-bin.000017 |?????? 117 |

| mysql-bin.000018 |?????? 117 |

| mysql-bin.000019 |??? 285300 |

| mysql-bin.000020 |??? 181229 |

| mysql-bin.000021 |??????? 98 |

+------------------+-----------+

21 rows in set (0.03 sec)

2.刪除bin-log(刪除mysql-bin.000018之前的所有二進制日志文件)

mysql> purge binary logs to 'mysql-bin.000018';

Query OK, 0 rows affected (0.08 sec)

mysql> show binary logs;

+------------------+-----------+

| Log_name???????? | File_size |

+------------------+-----------+

| mysql-bin.000018 |?????? 117 |

| mysql-bin.000019 |??? 285300 |

| mysql-bin.000020 |??? 181229 |

| mysql-bin.000021 |??????? 98 |

+------------------+-----------+

4 rows in set (0.00 sec)

mysql> show binlog events;

+------------------+-----+-------------+-----------+-------------+---------------------------------------+

| Log_name???????? | Pos | Event_type? | Server_id | End_log_pos | Info????????????????????????????????? |

+------------------+-----+-------------+-----------+-------------+---------------------------------------+

| mysql-bin.000018 |?? 4 | Format_desc |???????? 1 |????????? 98 | Server ver: 5.0.45-log, Binlog ver: 4 |

| mysql-bin.000018 |? 98 | Stop??????? |???????? 1 |???????? 117 |?????????????????????????????????????? |

+------------------+-----+-------------+-----------+-------------+---------------------------------------+

2 rows in set (0.01 sec)

總結

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