可以加入数据表，也可以添加字段，但是浏览时，显示：

错误
SQL 查询 :
MySQL 返回:
#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 'LIMIT 0, 30' at line 1

删除索引时，显示：
MySQL 返回:
#1065 - Query was empty