Question

我正在尝试为报告制作一个选择语句。我有它拉数据和我需要的一切，但我注意到，因为我必须使用它的组是删除表中不存在的行。如何阻止或使其发挥作用。

SELECT Sum(CASE WHEN direction = 'I' THEN 1 ELSE 0 END) InBound, 
       Sum(CASE WHEN direction = 'O' THEN 1 ELSE 0 END) OutBound, 
       Sum(CASE WHEN direction = 'I' THEN p.duration ELSE 0 END) InBoundTime, 
       Sum(CASE WHEN direction = 'O' THEN p.duration ELSE 0 END) OutBoundTime, 
       u.fullname, 
       ( CASE 
           WHEN EXISTS (SELECT g.goalamount 
                        FROM   [tblbrokergoals] AS g 
                        WHERE  ( g.goaldate BETWEEN 
                                 '2016-03-21' AND '2016-03-27' )) 
         THEN 
           g.goalamount 
           ELSE 0 
         END )  AS GoalAmount 
FROM   [tblphonelogs] AS p 
       LEFT JOIN [tblusers] AS u 
              ON u.fullname = p.phonename 
       LEFT OUTER JOIN [tblbrokergoals] AS g 
                    ON u.fullname = g.brokername 
WHERE  ( calldatetime BETWEEN '2016-03-21' AND '2016-03-27' ) 
       AND ( u.userid IS NOT NULL ) 
       AND ( u.direxclude <> '11' ) 
       AND u.termdate IS NULL 
       AND ( g.goaldate BETWEEN '2016-03-21' AND '2016-03-27' ) 
GROUP  BY u.fullname, 
          g.goalamount;

当用户在BrokerGoals中时，这可以工作并获取所有数据，但是当用户不在代理目标中时，它只删除返回结果集上的那一行。如果用户不存在于brokergoals表中以将该值设置为0或 - 那么该行不会被删除。如何才能获得它。

Answer 1

如果您有brokers表，则可以将其用于left join

SELECT b.broker_id, ....
FROM brokers b
LEFT JOIN .... ALL YOUR OTHER TABLES
....
GROUP BY b.broker_id, ....

如果您的经纪人姓名重复，请使用

SELECT b.broker_id, ....
FROM (SELECT DISTINCT broker_id
      FROM brokers) b
LEFT JOIN .... ALL YOUR OTHER TABLES
....
GROUP BY b.broker_id,   ....

Answer 2

SELECT u.FullName,
    SUM(CASE WHEN Direction = 'I' THEN 1 ELSE 0 END) AS InBound,
    SUM(CASE WHEN Direction = 'O' THEN 1 ELSE 0 END) OutBound,
    SUM(CASE WHEN Direction = 'I' THEN p.Duration ELSE 0 END) InBoundTime,
    SUM(CASE WHEN Direction = 'O' THEN p.Duration ELSE 0 END) OutBoundTime,
    CASE WHEN EXISTS (
        SELECT g.GoalAmount
        FROM [Portal].[dbo].[tblBrokerGoals] AS g
        WHERE g.GoalDate BETWEEN '2016-03-21' AND '2016-03-27'
            AND u.FullName = g.BrokerName
    ) THEN (
        SELECT g.GoalAmount
        FROM [Portal].[dbo].[tblBrokerGoals] AS g
        WHERE g.GoalDate BETWEEN '2016-03-21' AND '2016-03-27'
            AND u.FullName = g.BrokerName
    ) ELSE '0' END AS GoalAmount
FROM [Portal].[dbo].[tblUsers] AS u
LEFT JOIN [Portal].[dbo].[tblPhoneLogs] AS p
    ON u.FullName = p.PhoneName
WHERE u.UserID IS NOT NULL
    AND u.DirExclude <> '11'
    AND u.TermDate IS NULL
    AND p.CallDateTime BETWEEN '2016-03-21' AND '2016-03-27'
GROUP BY u.FullName

这就是我最终要解决的问题。我添加了Case When Exists语句，然后在then语句中选择了else，它是0。

Answer 3

你有没有尝试过更换（CASE 什么时候出现（选择g.goalamount 来自[tblbrokergoals] AS g 在哪里（g.goaldate BETWEEN ＆＃39; 2016年3月21日＆＃39; AND＆＃39; 2016-03-27＆＃39; ））然后 g.goalamount ELSE 0 END）作为GoalAmount 到g.goalamount，因为你已经在where子句

中有了这个日期条件

案例sql无法正常工作

3 个答案: