MySQL 如何显示刚刚发生的MySQL警告

为了显示MySQL警告，您可以使用以下语法-

SHOW WARNINGS;

上述语法仅显示来自MySQL提示的立即警告。假设您在它们之间运行另一个查询或者您失去MySQL连接，则SHOW WARNINGS将无法工作。

以下是显示警告的查询-

mysql> SHOW WARNINGS;

以下是显示立即警告的输出-

+-------+------+---------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Level | Code | Message                                                                                                                                                       |
+-------+------+---------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Error | 1064 | 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 'QUERY CACHE' at line 1 |
+-------+------+---------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

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