MySQL如何查询当前正在运行的SQL语句

通过status命令，查看Slow queries这一项，如果值长时间>0,说明有查询执行时间过长

以下为引用的内容： mysql> status;  --------------  mysql Ver 11.18 Distrib 3.23.58, for redhat-linux-gnu (i386)  Connection id: 53  Current database: (null)  Current user: root@localhost  Current pager: stdout  Using outfile: ''  Server version: 5.0.37-log  Protocol version: 10  Connection: Localhost via UNIX socket  Client characterset: latin1  Server characterset: latin1  UNIX socket: /tmp/mysql.sock  Uptime: 4 days 16 hours 49 min 57 sec  Threads: 1 Questions: 706 Slow queries: 0 Opens: 177 Flush tables: 1 Open tables: 52 Queries per second avg: 0.002  --------------

这时再通过show processlist命令来查看当前正在运行的SQL，从中找出运行慢的SQL语句，找到执行慢的语句后，再用explain命令查看这些语句的执行计划。

mysql> show processlist;

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

| Id | User | Host | db | Command | Time | State | Info |

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

| 53 | root | localhost | NULL | Query | 0 | NULL | show processlist |

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