同时插入两个表 求高手
通过外键同时插入两个表,A表有字段id,name,pw,其中id是主键是一个自增字段,B表有字段id,p_id,其中id也是主键,p_id是外键,现在我想插入A表的时候同时也插入B表且B表中的p_id的值要等于A表中的id的值。我应该怎么写?谢谢各位
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先A后B...轮着插入就行了.
不是太重要的东西不必事物了.
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http://baike.baidu.com/view/1189954.htm
你看一下这个把,是数据库触发器,不是php触发器
用php的话可以这样
- PHP code
class A{ public function insertA(){ //插入A表的代码 [color=#FF0000]$this->insertB($a_id)[/color]; } public function insertB($a_id){ //插入B表的代码 }}<br><font color="#e78608">------解决方案--------------------</font><br>用mysql 触发器<br>http://blog.csdn.net/mengxiangbaidu/article/details/7345108<br><font color="#e78608">------解决方案--------------------</font><br>
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mysql_query("insert into jf(id,name) values(null,'$name')",$conn) or die(mysql_error());
if($f){
$jf_id = mysql_insert_id();
mysql_query("INSERT INTO user (id,jf_id) VALUES (null,'$jf_id')",$conn) or die(mysql_error());
}
这样试试。
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=。=
有空值

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