MySQL關於計數總和的有子句

Question

我有以下查詢，給出以下結果

SELECT ttable.* 
FROM  ( SELECT 
            `STATUS`, 
            `TELCOID`,                
            COUNT(*) smsCount                 
        FROM `smsout` 
        WHERE `STATUS`  = 'Send'        
            AND (RECEIVEDTIME BETWEEN DATE_SUB(NOW(), INTERVAL 1000000 MINUTE) AND NOW())
        GROUP BY  `STATUS` , `TELCOID`                                 
   ) ttable 
#having Sum(smscount) > 2500 ;

STATUS  TELCOID smsCount
send    -3      2
send    -1      2487
send    158     233
send    162     16

我需要添加一個where / having子句，該子句將檢查sum（smscount）> 2500，然后以其他方式返回結果集，什么也沒做，我可以在此查詢中進行哪些更改以實現此目的。 在當前結果中，2 + 2487 + 233 + 16的總和大於2500，因此它不會返回任何東西。 如果代替2500我放置3000，那么結果集將返回

Answer 1

您需要運行兩個查詢或使用變量。 我認為這可能有效：

SELECT status, telcoid, smscount
FROM  (SELECT `STATUS`, `TELCOID`, COUNT(*) as smsCount,
              (@s := @s + COUNT(*)) as cumesum              
        FROM `smsout` CROSS JOIN (SELECT @s := 0) vars
        WHERE `STATUS`  = 'Send' AND       
              RECEIVEDTIME BETWEEN DATE_SUB(NOW(), INTERVAL 1000000 MINUTEAND NOW())
        GROUP BY `STATUS` , `TELCOID`                                 
     ) ttable 
WHERE @s > 2500;

有時變量不能很好地與聚合配合使用，因此您可能需要額外的子查詢層才能使其起作用。

編輯：

試試這個版本：

SELECT status, telcoid, smscount
FROM  (SELECT t.*, (@s := @s + COUNT(*)) as cumesum              
       FROM (SELECT `STATUS`, `TELCOID`, COUNT(*) as smsCount
              FROM `smsout`
              WHERE `STATUS`  = 'Send' AND       
                    RECEIVEDTIME BETWEEN DATE_SUB(NOW(), INTERVAL 1000000 MINUTEAND NOW())
              GROUP BY `STATUS` , `TELCOID`                                 
            ) t CROSS JOIN
            (SELECT @s := 0) vars
       ) t
WHERE @s > 2500;

Answer 2

smscount是一筆款項，因為您寫了count（*）smscount

你能試一下嗎

SELECT ttable.* 
FROM  ( SELECT 
        `STATUS`, 
        `TELCOID`,                
        COUNT(*) smsCount                 
        FROM `smsout` 
        WHERE `STATUS`  = 'Send'        
            AND (RECEIVEDTIME BETWEEN DATE_SUB(NOW(), INTERVAL 1000000     MINUTE) AND NOW())
        GROUP BY  `STATUS` , `TELCOID`                                 
   ) ttable 
having smscount > 2500 ;

Answer 3

SELECT `STATUS`, `TELCOID`, COUNT(*) smsCount
FROM `smsout` 
WHERE `STATUS`  = 'Send'        
AND (RECEIVEDTIME BETWEEN DATE_SUB(NOW(), INTERVAL 1000000 MINUTE) AND NOW())
GROUP BY  `STATUS` , `TELCOID` 
HAVING COUNT(*) > 2500;

子查詢應該不是必需的。