INNER की गिनती और सभी वस्तुओं की गिनती की गिनती कैसे प्राप्त करें?

यदि आप अपने दो प्रश्नों को संघ के अनुकूल बनाते हैं, तो आप परिणामों को जोड़ सकते हैं और एक अतिरिक्त क्वेरी के साथ जोड़ सकते हैं:

    SELECT payer, 
           sum(churned_accounts) AS "churned_count",
           sum(total_accounts) AS "total_count" 
    FROM (
      SELECT CAST(payor_id AS CHAR(50)) AS "payer", 
             count(*) as "churned accounts", 
             0 AS "total accounts" 
      FROM paid_users_no_more 
      INNER JOIN paid_users 
        ON paid_users_no_more.user_id=paid_users.user_id 
      WHERE paid_users.payment_start_date NOT BETWEEN '2015-08-01 00:00:00'::timestamp AND '2015-08-30 23:59:59'::timestamp 
      AND paid_users_no_more.payment_stop_date BETWEEN '2015-08-01 00:00:00'::timestamp AND '2015-08-30 23:59:59'::timestamp 
      GROUP BY paid_users.payor_id

      UNION

      SELECT CAST(paid_users.payor_email AS CHAR(50)) AS "payer", 
             0 AS "churned accounts", 
             count(*) AS "total accounts" 
      FROM paid_users 
      WHERE paid_users.payment_start_date NOT BETWEEN '2015-08-01 00:00:00'::timestamp AND '2015-08-30 23:59:59'::timestamp 
      GROUP BY paid_users.payor_email
    ) as All_Accounts

0 AS "total_accounts" . होना और 0 AS "churned_accounts" इसका मतलब है कि दो प्रश्नों में समान फ़ील्ड मौजूद हैं, जो UNION . बनाते हैं संभव है।