Question

我需要一点帮助，我有一份报告说我正在运行，只会根据一些硬编码的“类别”提取某些信息。但是，我想尽可能灵活地使用它，并且我希望用用户可以选择的参数替换这些编码类别。但是当我尝试这个时，它永远不会因各种原因而起作用目前的代码是：

    SELECT          gcs_allocatedpdaidname AS PDA,
        gcs_consideringapplyingyearname AS 'Intending to Start ITT', 
        SUM(CASE WHEN (gcs_allocatedpdaid IS NOT NULL) AND (gcs_ContactType = 1) THEN 1 ELSE 0 END) AS 'Total Participants',
        SUM(CASE WHEN (gcs_allocatedpdaid IS NOT NULL) AND (gcs_ContactType = 1) AND (StatusCode = 1) THEN 1 ELSE 0 END) AS 'Active Participants', 
        SUM(CASE WHEN (gcs_allocatedpdaid IS NOT NULL) AND (gcs_ContactType = 1) AND (StatusCode = 200001) THEN 1 ELSE 0 END) AS 'Completed Participants', 
        SUM(CASE WHEN (gcs_allocatedpdaid IS NOT NULL) AND (gcs_ContactType = 1) AND ((gcs_categoryofparticipant = 7) OR
                            (gcs_categoryofparticipant = 8) OR
                            (gcs_categoryofparticipant = 9) OR
                            (gcs_categoryofparticipant = 10) OR
                            (gcs_categoryofparticipant = 11) OR
                            (gcs_categoryofparticipant = 12)) THEN 1 ELSE 0 END) AS 'On ITT and beyond TOTAL',

        SUM(CASE WHEN (gcs_allocatedpdaid IS NOT NULL) AND (gcs_ContactType = 1) AND ((StatusCode = 1) OR (StatusCode = 200001)) THEN 1 ELSE 0 END) AS 'On ITT and beyond ACTIVE/COMPLETE'

FROM            FilteredContact
GROUP BY gcs_allocatedpdaidname, gcs_allocatedpdaid, gcs_consideringapplyingyearname
HAVING        (gcs_allocatedpdaidname IN (@PDA)) AND (gcs_consideringapplyingyearname IN (@ITTYear))
ORDER BY PDA, 'Intending to Start ITT'

我要替换的硬编码是'gcs_categoryofparticipant'，见下文：

SUM(CASE WHEN (gcs_allocatedpdaid IS NOT NULL) AND (gcs_ContactType = 1) AND
                                ((gcs_categoryofparticipant = 7) OR
                                (gcs_categoryofparticipant = 8) OR
                                (gcs_categoryofparticipant = 9) OR
                                (gcs_categoryofparticipant = 10) OR
                                (gcs_categoryofparticipant = 11) OR
                                (gcs_categoryofparticipant = 12)) THEN 1 ELSE 0 END) AS 'On ITT and beyond TOTAL'

我想这将是：

SUM(CASE WHEN (gcs_allocatedpdaid IS NOT NULL) AND (gcs_ContactType = 1) AND (HAVING (gcs_categoryofparticipant IN (@Category))) THEN 1 ELSE 0 END) AS 'On ITT and beyond TOTAL'

这显然不起作用，但如果有人能指出我正确的方向，那将非常感激。

由于

Answer 1

您不需要在SUM或查询结尾处使用HAVING - 查询结尾处的HAVING可以更改为WHERE，而SUM可以是：

SUM(CASE WHEN (gcs_allocatedpdaid IS NOT NULL) AND 
              (gcs_ContactType = 1) AND 
              (gcs_categoryofparticipant IN (@Category)) 
         THEN 1 
         ELSE 0 
    END) AS 'On ITT and beyond TOTAL'

SQL应用参数而不是硬编码

1 个答案: