php - 1 つのクエリで複数のクエリに対して集計関数を使用できない

Question

これは私のクエリです...集計関数を使用できません-一度に複数のテーブルを数えます。

$qu="SELECT distinct calls.c_number, count(type) as count1,SUM(charges * duration) as total,sum(duration) as duration1,billing_details.payment as pay,packages.(count)activation as act
 FROM calls
  INNER 
    JOIN packages
    ON calls.c_number=packages.c_number 
 WHERE

 calls.date>= DATE_FORMAT( $date, '%Y/%m/01' ) AND


calls.date< DATE_FORMAT( $date + INTERVAL 1 MONTH, '%Y/%m/01') group by c_number desc having SUM(charges * duration) > 0  "; 

それは私にこのエラーを与えます:

FUNCTION packages.count does not exist. Check the 'Function Name Parsing and Resolution' section in the Reference Manual

Answer 1

これを試して

count(packages.activation)

これの代わりに

 packages.(count)activation