Question

所以我甚至不确定这是否可行但是学习并且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，这些查询返回单行数据并创建一个表，然后可以在asp.net的gridview中使用

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是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

Answer 1

您可以使用UNION语句执行此操作，您只需获取3个select语句以返回相同数量的字段并按相同顺序

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

Answer 2

这看起来像一个标准的UNION - 虽然你需要你的列以相同的顺序。这是科学（这将是很长的）

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

帮助创建复杂的存储过程

2 个答案: