Question

感谢很多人的帮助，我得到了以下代码，效果很好。然而，我已经意识到我已经错过了一个重要的信息，因此已经转载（使用更新的代码）澄清。

以下代码从表中获取5个随机记录，并根据第二个表中标识的用户收藏记录获得另一条记录：

CREATE PROCEDURE web.getRandomCharities
   (
   @tmp_ID bigint --members ID
   )
AS
BEGIN

    WITH    q AS
     (
     SELECT  TOP 5 *
     FROM    TBL_CHARITIES
     WHERE   cha_Active = 'TRUE'
             AND cha_Key != '1'
     ORDER BY NEWID()
     )
SELECT  *
FROM    q
UNION ALL
SELECT  TOP 1 *
FROM    (
     SELECT  *
     FROM    TBL_CHARITIES
     WHERE   TBL_CHARITIES.cha_Key IN
             (
             SELECT  members_Favourite
             FROM    TBL_MEMBERS
             WHERE   members_Id = @tmp_ID
             )
     EXCEPT
     SELECT  *
     FROM    q
     ) tc

END

但是，我意识到如果它与上面显示的代码中第二个SELECT语句中返回的记录不同，我还需要包含“cha_Key =='1'”的记录。

有意义的HOpe？

感谢!!!

Answer 1

我不完全确定我理解你，但我相信它会像这样......

没有＃1的五个随机记录一个用户特定记录如果它不是用户的特定记录，则记录＃1。

如果是这样，我相信这样做：


CREATE PROCEDURE web.getRandomCharities
   (
   @tmp_ID bigint --members ID
   )
AS
BEGIN
    WITH    q AS
     (
     SELECT  TOP 5 *
     FROM    TBL_CHARITIES
     WHERE   cha_Active = 'TRUE'
             AND cha_Key != '1'
     ORDER BY NEWID()
     )
SELECT  *
FROM    q
UNION ALL
SELECT  TOP 1 *
FROM    (
     SELECT  *
     FROM    TBL_CHARITIES
     WHERE   TBL_CHARITIES.cha_Key IN
             (
             SELECT  members_Favourite
             FROM    TBL_MEMBERS
             WHERE   members_Id = @tmp_ID
             )
     EXCEPT
     SELECT  *
     FROM    q
     ) tc
UNION ALL
SELECT  TOP 1 *
FROM    (
     SELECT  *
     FROM    TBL_CHARITIES
     WHERE   TBL_CHARITIES.cha_Key NOT IN
             (
             SELECT  members_Favourite
             FROM    TBL_MEMBERS
             WHERE   members_Id = @tmp_ID
             )
        AND (TBL_CHARITIES.cha_Key = '1')
     EXCEPT
     SELECT  *
     FROM    q
     ) tc
END

SP：随机记录，最爱记录，加上已知记录，无重复

1 个答案: