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php-mysql 问题笔记一——在命令行中可以执行的sql语句,无法从php页面页面执行!,php-mysqlsql
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php-mysql 问题笔记一在命令行中可以执行的sql语句,无法从php页面页面执行!,php-mysqlsql

Jun 13, 2016 am 09:12 AM
sql statement

php-mysql 问题笔记一——在命令行中可以执行的sql语句,无法从php页面页面执行!,php-mysqlsql

我的情况:

1.由于外键较多,插入数据时,提前关闭外键(SET FOREIGN_KEY_CHECKS=0)。

2.所使用的sql语句中,有外键绑定到其他表中,所以无法从php页面插入。

原因分析:

SET FOREIGN_KEY_CHECKS=0,此指令只对单一数据库用户有效,即使用该语句的用户有效,可以在忽略外键的情况下插入数据。

经验总结:

对于一些特殊操作,修改用户权限,应该及时回复正常状态,也就是说

SET FOREIGN_KEY_CHECKS=0;

sql语句

SET FOREIGN_KEY_CHECKS=1;*********************************这是很重要的********************************

 

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