SHOW ERRORS
该语句显示之前执行的语句中的错误。当语句成功执行后，错误缓冲区会被清空。在这种情况下，SHOW ERRORS 将返回一个空集。
哪些语句会生成错误与警告的行为，受到当前 sql_mode 设置的高度影响。
概要
- ShowErrorsStmt
- ShowLikeOrWhere
ShowErrorsStmt ::=
"SHOW" "ERRORS" ShowLikeOrWhere?
ShowLikeOrWhere ::=
"LIKE" SimpleExpr
| "WHERE" Expression
示例
mysql> select invalid;
ERROR 1054 (42S22): Unknown column 'invalid' in 'field list'
mysql> create invalid;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your TiDB version for the right syntax to use line 1 column 14 near "invalid"
mysql> SHOW ERRORS;
+-------+------+-----------------------------------------------------------------------------------------------------------------------------------------------------------+
| Level | Code | Message |
+-------+------+-----------------------------------------------------------------------------------------------------------------------------------------------------------+
| Error | 1054 | Unknown column 'invalid' in 'field list' |
| Error | 1064 | You have an error in your SQL syntax; check the manual that corresponds to your TiDB version for the right syntax to use line 1 column 14 near "invalid" |
+-------+------+-----------------------------------------------------------------------------------------------------------------------------------------------------------+
2 rows in set (0.00 sec)
mysql> CREATE invalid2;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your TiDB version for the right syntax to use line 1 column 15 near "invalid2"
mysql> SELECT 1;
+------+
| 1 |
+------+
| 1 |
+------+
1 row in set (0.00 sec)
mysql> SHOW ERRORS;
Empty set (0.00 sec)
MySQL 兼容性
TiDB 中的 SHOW ERRORS 语句与 MySQL 完全兼容。如果你发现任何兼容性差异，请报告一个 bug。