mysql sql语句执行时间查询

第一种：

开启profile

mysql> set profiling=1;
Query OK, 0 rows affected (0.00 sec)

eg：

mysql> select * from test_1;
mysql> show profiles;
+----------+------------+----------------------+
| Query_ID | Duration   | Query                |
+----------+------------+----------------------+
|        1 | 0.84718100 | select * from test_1 |
+----------+------------+----------------------+
1 row in set (0.00 sec)

第二种：(通过时间差查看)

delimiter // set @d=now();

select * from comment;

select timestampdiff(second,@d,now());

delimiter ;





Query OK, 0 rows affected (1 min 55.58 sec)





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

| timestampdiff(second, @d, now()) |

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

|                                2 |

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

1 row in set (1 min 55.58 sec)