6932阅读　0评论2007-11-02　yueliangdao0608 分类：Mysql/postgreSQL

mysql> show dfdafsadf    -> ;ERROR 1064 (42000): You have an error in your SQL syntax; check the manual thatcorresponds to your MySQL server version for the right syntax to use near 'dfdafsadf' at line 1

这里就有个错误。关于如何显示她，已经很明显了。

mysql> show errors    -> \G*************************** 1. row ***************************  Level: Error   Code: 1064Message: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'dfdafsadf' at line 11 row in set (0.00 sec)如果一下子有好多错误，而你又想只显示第二条的话：show errorw limit 1,1;如果你想看到有错误的数目，前面的 1 rows in set 已经很明显了。不过还有办法：mysql> show count(*) errors;+-----------------------+| @@session.error_count |+-----------------------+|                     1 |+-----------------------+1 row in set (0.00 sec)注意：这里的count(*)不能写成count(1).你还可以这样：mysql> select @@error_count;+---------------+| @@error_count |+---------------+|             1 |+---------------+1 row in set (0.00 sec)

2、SHOW WARNINGS 显示上一个语句的错误、警告以及注意。基本语法和SHOW ERRORS大同小异。不过要注意的是在MYSQL5后的大部分以前的WARNINGS直接被显示为ERRORS。