Yii使用createCommand选择yii中两列的乘法

Question

如何使用yii createCommand 编写以下选择查询。这在phpmyadmin中运行得很完美吗？

SELECT total_units, nav, total_units * nav as total 
FROM user_nav_stats 
where total_units !=0

Answer 1

如果您不想以SQL身份运行它，那么

$connection->createCommand('SELECT total_units, nav, total_units * nav as total FROM user_nav_stats where total_units !=0')->queryAll();

但我会使用Querybuilder。它是这样的。 More can be found here

$rows = (new \yii\db\Query())
    ->select(['total_units', 'nav', 'total_units * nav as total'])
    ->from('user_nav_stats')
    ->where(['!=','total_units',0])
    ->all();