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我想创建验证,如果新的。 Some Field
=“”(即NOT NULL只是一句INPUT),那么文本messange是“表:人] - Some Field
列是无效的”,现在用我这种方法:MySQL的Foreach(触发器)
BEGIN
IF NEW.`Some Field1` = '' THEN
SIGNAL SQLSTATE VALUE '45000'
SET MESSAGE_TEXT = '[table:person] - `Some Field` column is not valid';
END IF;
IF NEW.`Some Field1` = '' THEN
SIGNAL SQLSTATE VALUE '45000'
SET MESSAGE_TEXT = '[table:person] - `Some Field` column is not valid';
END IF;
END;
这种方法,我们不能如果验证过多,我仍然不了解NEW。 Some Field
,是否像在PHP和其他编数组。语言
,如果相同,我们可以使用的方法就像在惠普,我举一个例子:
$new = array('some1'=>'TEST','some2'=>'');
foreach($new as $field => $val){
if($val == ''){
echo "[table:person] - `{$field}` column is not valid";
//and final we can use continue or return false
}
}
//And that result is "[table:person] - `some2` column is not valid"
感谢您的回应,以及...现在如何获得简单的语法? –
我不能写很多查询 –