帮助创建复杂的存储过程答案

【问题标题】：help creating a complicated stored procedure帮助创建复杂的存储过程
【发布时间】：2011-04-21 14:57:56
【问题描述】：

所以我什至不确定这是否可能，但学习并能够做到这一点真的很棒。

我要做的是运行 3 个单独的查询，它们返回单行数据并创建一个表，然后可以在 asp.net 的 gridview 中使用该表

查询 1

SELECT     dbo.BOOKINGS.USERID, SUM(dbo.BOOKINGS.APRICE) AS total, COUNT
(dbo.BOOKINGS.USERID) AS bookingcount
FROM         dbo.BOOKINGS INNER JOIN
             dbo.TOURS ON dbo.BOOKINGS.TOUR = dbo.TOURS.TOUR INNER JOIN
             dbo.MAJOR ON dbo.TOURS.MAJOR = dbo.MAJOR.MAJOR
WHERE     (dbo.BOOKINGS.BOOKED BETWEEN CONVERT(int, @startdate) AND CONVERT(int, 
@enddate)) AND (dbo.MAJOR.SDESCR = 'Cruises') AND 
                      (dbo.BOOKINGS.USERID = @USER) AND (dbo.MAJOR.DIVISION = 'A')
GROUP BY dbo.BOOKINGS.USERID

查询 2

SELECT     dbo.BOOKINGS.USERID, SUM(dbo.BOOKINGS.APRICE) AS total, COUNT
    (dbo.BOOKINGS.USERID) AS bookingcount
FROM         dbo.BOOKINGS INNER JOIN
                      dbo.TOURS ON dbo.BOOKINGS.TOUR = dbo.TOURS.TOUR INNER JOIN
                      dbo.MAJOR ON dbo.TOURS.MAJOR = dbo.MAJOR.MAJOR
WHERE     (dbo.BOOKINGS.BOOKED BETWEEN CONVERT(int, @startdate) AND CONVERT(int, 
    @enddate)) AND (dbo.MAJOR.SDESCR <> 'Cruises') AND 
                      (dbo.BOOKINGS.USERID = @USER) AND (dbo.MAJOR.DIVISION = 'A')
GROUP BY dbo.BOOKINGS.USERID

查询 3

SELECT     SUM(dbo.SUBS.AMOUNT) AS total, COUNT(dbo.SUBS.AMOUNT) AS Memberships, 
    dbo.HOMES.USERID
FROM         dbo.HOMES INNER JOIN
                      dbo.SUBS ON dbo.HOMES.HOME = dbo.SUBS.HOME AND dbo.HOMES.JOINED 
    = dbo.SUBS.PAIDON
WHERE     (dbo.HOMES.JOINED BETWEEN CONVERT(int, @startdate) AND CONVERT(int, 
    @enddate)) AND (dbo.HOMES.USERID = 
    @USER)
GROUP BY dbo.HOMES.USERID

所有 thre 查询都返回包含 3 列的单行所以我认为这可能会起作用，唯一困难的部分是我想添加一个新列

query1 userid  total1   bookingcount
query2 userid  total2   bookingcount
query3 userid  total3   memberships

【问题讨论】：

标签： sql sql-server-2005 stored-procedures

【解决方案1】：

您可以使用 UNION 语句执行此操作，您所要做的就是让 3 个 select 语句以相同的顺序返回相同数量的字段

SELECT     'QUERY1' AS QUERYNAME, dbo.BOOKINGS.USERID, SUM(dbo.BOOKINGS.APRICE) AS total, COUNT(dbo.BOOKINGS.USERID) AS TOTAL2
FROM         dbo.BOOKINGS INNER JOIN
             dbo.TOURS ON dbo.BOOKINGS.TOUR = dbo.TOURS.TOUR INNER JOIN
             dbo.MAJOR ON dbo.TOURS.MAJOR = dbo.MAJOR.MAJOR
WHERE     (dbo.BOOKINGS.BOOKED BETWEEN CONVERT(int, @startdate) AND CONVERT(int, 
@enddate)) AND (dbo.MAJOR.SDESCR = 'Cruises') AND 
                      (dbo.BOOKINGS.USERID = @USER) AND (dbo.MAJOR.DIVISION = 'A')
GROUP BY dbo.BOOKINGS.USERID

UNION ALL

SELECT     'QUERY2' AS QUERYNAME, dbo.BOOKINGS.USERID, SUM(dbo.BOOKINGS.APRICE) AS total, COUNT(dbo.BOOKINGS.USERID) AS TOTAL2
FROM         dbo.BOOKINGS INNER JOIN
                      dbo.TOURS ON dbo.BOOKINGS.TOUR = dbo.TOURS.TOUR INNER JOIN
                      dbo.MAJOR ON dbo.TOURS.MAJOR = dbo.MAJOR.MAJOR
WHERE     (dbo.BOOKINGS.BOOKED BETWEEN CONVERT(int, @startdate) AND CONVERT(int, 
    @enddate)) AND (dbo.MAJOR.SDESCR <> 'Cruises') AND 
                      (dbo.BOOKINGS.USERID = @USER) AND (dbo.MAJOR.DIVISION = 'A')
GROUP BY dbo.BOOKINGS.USERID

UNION ALL

SELECT         'QUERY3' AS QUERYNAME, dbo.HOMES.USERID, SUM(dbo.SUBS.AMOUNT) AS total, COUNT(dbo.SUBS.AMOUNT) AS TOTAL2
FROM         dbo.HOMES INNER JOIN
                      dbo.SUBS ON dbo.HOMES.HOME = dbo.SUBS.HOME AND dbo.HOMES.JOINED 
    = dbo.SUBS.PAIDON
WHERE     (dbo.HOMES.JOINED BETWEEN CONVERT(int, @startdate) AND CONVERT(int, 
    @enddate)) AND (dbo.HOMES.USERID = 
    @USER)
GROUP BY dbo.HOMES.USERID

【讨论】：

没想到这么简单哈哈
感谢它运行良好，我唯一的问题是如果用户没有查询 3 的数据，它只是不显示该行，如果没有出现，我如何插入 0

【解决方案2】：

这看起来像一个标准的 UNION - 尽管您需要以相同的顺序排列列。科学来了（这会很长）

SELECT  'query1',   dbo.BOOKINGS.USERID, SUM(dbo.BOOKINGS.APRICE) AS total, COUNT
(dbo.BOOKINGS.USERID) AS bookingcount
FROM         dbo.BOOKINGS INNER JOIN
             dbo.TOURS ON dbo.BOOKINGS.TOUR = dbo.TOURS.TOUR INNER JOIN
             dbo.MAJOR ON dbo.TOURS.MAJOR = dbo.MAJOR.MAJOR
WHERE     (dbo.BOOKINGS.BOOKED BETWEEN CONVERT(int, @startdate) AND CONVERT(int, 
@enddate)) AND (dbo.MAJOR.SDESCR = 'Cruises') AND 
                      (dbo.BOOKINGS.USERID = @USER) AND (dbo.MAJOR.DIVISION = 'A')
GROUP BY dbo.BOOKINGS.USERID
UNION
SELECT    'query2', dbo.BOOKINGS.USERID, SUM(dbo.BOOKINGS.APRICE) AS total, COUNT
    (dbo.BOOKINGS.USERID) AS bookingcount
FROM         dbo.BOOKINGS INNER JOIN
                      dbo.TOURS ON dbo.BOOKINGS.TOUR = dbo.TOURS.TOUR INNER JOIN
                      dbo.MAJOR ON dbo.TOURS.MAJOR = dbo.MAJOR.MAJOR
WHERE     (dbo.BOOKINGS.BOOKED BETWEEN CONVERT(int, @startdate) AND CONVERT(int, 
    @enddate)) AND (dbo.MAJOR.SDESCR <> 'Cruises') AND 
                      (dbo.BOOKINGS.USERID = @USER) AND (dbo.MAJOR.DIVISION = 'A')
GROUP BY dbo.BOOKINGS.USERID
UNION
SELECT  'query3',dbo.HOMES.USERID, SUM(dbo.SUBS.AMOUNT) AS total, 
        COUNT(dbo.SUBS.AMOUNT) AS Memberships    
FROM         dbo.HOMES INNER JOIN
                      dbo.SUBS ON dbo.HOMES.HOME = dbo.SUBS.HOME AND dbo.HOMES.JOINED 
    = dbo.SUBS.PAIDON
WHERE     (dbo.HOMES.JOINED BETWEEN CONVERT(int, @startdate) AND CONVERT(int, 
    @enddate)) AND (dbo.HOMES.USERID = 
    @USER)
GROUP BY dbo.HOMES.USERID

【讨论】：