You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use

在使用MYSQL更新数据的时候出现

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 '=13' at line 1

解决方案--》最后执行查询的SQL语句应该是下面的样子：
SELECT *FROM renshiguanliWHERE GH=13
表名和关键字WHERE之间应该有空格的。
在WHERE之前加个空格试试。