访问SELECT存储过程中的SQL表函数列

Question

我有一个非常大的SELECT存储过程，它有多个返回列和多个内部联接和左联接。我还有一个包含10列的表函数，该表函数的结果集基于一个用户ID。

我的问题是，如何将表函数合并到主SELECT存储过程中，并能够根据用户ID从表函数返回列。

主存储过程：

SELECT     
      dbo.WebPersonalInfo.UserID, 
      dbo.WebPersonalInfo.FirstName, 
      dbo.WebPersonalInfo.MiddleInitial, 
      dbo.WebPersonalInfo.LastName,
      dbo.WebProgramParticipants.ParticipantID, 
      dbo.WebProgramParticipants.ProgramCode, 
FROM  dbo.WebProgramParticipants INNER JOIN
      dbo.WebPersonalInfo ON dbo.WebProgramParticipants.UserID = dbo.WebPersonalInfo.UserID 
WHERE     (dbo.WebProgramParticipants.ProgramCode = @programcode) 
ORDER BY dbo.WebPersonalInfo.LastName, dbo.WebPersonalInfo.FirstName

表函数：

SELECT 
        ST1.SKILL_SET_ID AS SET1, SS1.SET_NAME AS NAME1, ST1.SKILL_SET_RATING AS R1,
        ST2.SKILL_SET_ID AS SET2, SS2.SET_NAME AS NAME2, ST2.SKILL_SET_RATING AS R2,
        ST3.SKILL_SET_ID AS SET3, SS3.SET_NAME AS NAME3, ST3.SKILL_SET_RATING AS R3,
        ST4.SKILL_SET_ID AS SET4, SS4.SET_NAME AS NAME4, ST4.SKILL_SET_RATING AS R4,
        ST5.SKILL_SET_ID AS SET5, ST5.SKILL_SET_OPTIONAL AS NAME5, ST5.SKILL_SET_RATING AS R5,
        ST6.SKILL_SET_ID AS SET6, ST6.SKILL_SET_OPTIONAL AS NAME6, ST6.SKILL_SET_RATING AS R6,
        ST7.SKILL_SET_ID AS SET7, ST7.SKILL_SET_OPTIONAL AS NAME7, ST7.SKILL_SET_RATING AS R7,
        CM.COMMENTS
    FROM IPAM_RIPS_SKILL_SET_PARTICIPANT_RATING_HDR HT
    LEFT JOIN IPAM_RIPS_SKILL_SET_PARTICIPANT_RATING_DTL ST1
        ON HT.ID = ST1.HDR_ID and st1.SKILL_SET_ID = 1
    INNER JOIN IPAM_RIPS_SKILL_SETS SS1
        ON ST1.SKILL_SET_ID = SS1.ID
    LEFT JOIN IPAM_RIPS_SKILL_SET_PARTICIPANT_RATING_DTL ST2
        ON HT.ID = ST2.HDR_ID and st2.SKILL_SET_ID = 2
    INNER JOIN IPAM_RIPS_SKILL_SETS SS2
        ON ST2.SKILL_SET_ID = SS2.ID
    LEFT JOIN IPAM_RIPS_SKILL_SET_PARTICIPANT_RATING_DTL ST3
        ON HT.ID = ST3.HDR_ID and st3.SKILL_SET_ID = 3
    INNER JOIN IPAM_RIPS_SKILL_SETS SS3
        ON ST3.SKILL_SET_ID = SS3.ID
    LEFT JOIN IPAM_RIPS_SKILL_SET_PARTICIPANT_RATING_DTL ST4
        ON HT.ID = ST4.HDR_ID and st4.SKILL_SET_ID = 4
    INNER JOIN IPAM_RIPS_SKILL_SETS SS4
        ON ST4.SKILL_SET_ID = SS4.ID
    LEFT JOIN IPAM_RIPS_SKILL_SET_PARTICIPANT_RATING_DTL ST5
        ON HT.ID = ST5.HDR_ID and st5.SKILL_SET_ID = 5
    INNER JOIN IPAM_RIPS_SKILL_SETS SS5
        ON ST5.SKILL_SET_ID = SS5.ID
    LEFT JOIN IPAM_RIPS_SKILL_SET_PARTICIPANT_RATING_DTL ST6
        ON HT.ID = ST6.HDR_ID and st6.SKILL_SET_ID = 10
    INNER JOIN IPAM_RIPS_SKILL_SETS SS6
        ON ST6.SKILL_SET_ID = SS6.ID
    LEFT JOIN IPAM_RIPS_SKILL_SET_PARTICIPANT_RATING_DTL ST7
        ON HT.ID = ST7.HDR_ID and st7.SKILL_SET_ID = 11
    INNER JOIN IPAM_RIPS_SKILL_SETS SS7
        ON ST7.SKILL_SET_ID = SS7.ID
    INNER JOIN IPAM_RIPS_SKILL_SET_PARTICIPANT_RATING_COMMENTS CM
        ON HT.ID = CM.HDR_ID
    WHERE HT.PARTICIPANT_ID = @PARTICIPANT_ID
    GROUP BY PARTICIPANT_ID, ST1.SKILL_SET_ID, SS1.SET_NAME, ST1.SKILL_SET_RATING, ST2.SKILL_SET_ID, SS2.SET_NAME, ST2.SKILL_SET_RATING, ST3.SKILL_SET_ID, SS3.SET_NAME, ST3.SKILL_SET_RATING, ST4.SKILL_SET_ID, SS4.SET_NAME, ST4.SKILL_SET_RATING, ST5.SKILL_SET_ID, ST5.SKILL_SET_OPTIONAL, ST5.SKILL_SET_RATING, ST6.SKILL_SET_ID, ST6.SKILL_SET_OPTIONAL, ST6.SKILL_SET_RATING, ST7.SKILL_SET_ID, ST7.SKILL_SET_OPTIONAL, ST7.SKILL_SET_RATING, CM.COMMENTS

Answer 1

安多玛的答案是正确的但是..。你有没有考虑过只使用视图？简单得多，而且几乎可以肯定更快。

接受函数，删除WHERE子句，并将PARTICIPANT_ID添加到选择列表；这就是您的视图。然后在Participant_ID上连接到它，就像它是一个表一样。

Answer 2

您可以使用outer apply或inner apply来像使用常规函数表一样使用函数表：

select  *
from    users u
outer apply
        dbo.fn_YourFunction(u.id) yf

这将返回函数中的所有列。

Answer 3

不知道你到底在问什么，但稍微读一下...

您可以连接到表值函数：

SELECT *
FROM existing tables and joins
LEFT JOIN tvf(@userid /* param to SP */)
    ON whatever

您还可以将表值函数应用于行：

SELECT *
FROM existing tables and joins
OUTER APPLY tvf(userid /* column from above joins */)