我应该在 Yii 1.1 中使用什么方法求和 MySQL?
What method should I use in Yii 1.1 to sum in MySQL?
Yii 1.1 添加时使用什么方法mysql?
这是我使用的代码,但 sum 方法不起作用:
$query = Yii::app()->db->createCommand()->from('users_payouts');
sum = $query->sum('sum');
在浏览器中,报错:
In the CDbCommand class and its behaviors, no method or closure named "sum" was found.
求和没有捷径,你应该定义正确的select
:
$sum = Yii::app()->db->createCommand()
->select('SUM(some_column)')
->from('users_payouts')
->queryScalar();
Yii 1.1 添加时使用什么方法mysql? 这是我使用的代码,但 sum 方法不起作用:
$query = Yii::app()->db->createCommand()->from('users_payouts');
sum = $query->sum('sum');
在浏览器中,报错:
In the CDbCommand class and its behaviors, no method or closure named "sum" was found.
求和没有捷径,你应该定义正确的select
:
$sum = Yii::app()->db->createCommand()
->select('SUM(some_column)')
->from('users_payouts')
->queryScalar();