根据id查询一条数据，并对id进行过滤：

$id = 1;
$result = Yii::$app->db->createCommand("select * from product where id=:id")->bindParam(":id",$id,\PDO::PARAM_INT)->queryAll();
$result = Yii::$app->db->createCommand("select * from product where id=:id")->bindParam(":id",$id,\PDO::PARAM_STR)->queryAll();

更新一条数据：

$id = 1;
$name = 'xiaoming';
$result = Yii::$app->db->createCommand("update product set name=:name where id=:id")->bindParam(':id',$id,\PDO::PARAM_INT)->bindParam(':name',$name,\PDO::PARAM_INT)->execute();

以下写法在会报错

$result = Yii::$app->db->createCommand()->delete('product',['name'=>':value'],'id=:id')->bindVa