mysql 删除记录时报错

在sql命令行,删除一条记录时,发现一个很奇怪的错误

下面的语句是可以正常执行的:

delete from   t_mid_test_convention  where convention_id=33;

 但是下面的报语法错:

 delete from   t_mid_test_convention as mt2 where mt2.convention_id=33;

mysql>
mysql> delete from   t_mid_test_convention as mt2 where mt2.convention_id=33;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'as mt2 where mt2.convention_id=33' at line 1
mysql> delete from   t_mid_test_convention as mt2 where mt2.convention_id=33;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'as mt2 where mt2.convention_id=33' at line 1
mysql> delete from   t_mid_test_convention  where convention_id=33;
Query OK, 0 rows affected (0.20 sec)

 数据库版本:

Server version: 5.5.41-MariaDB MariaDB Server

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