Question

我有六种不同的选择语句用于SSRS报告目的。

以下是其中的两个陈述。我需要帮助，了解如何{@ 1}}以及将所有陈述合并为一个。

Union All

Answer 1

您只能应用一个ORDER BY子句来影响结果的顺序，并且它必须应用于整个结果集。如果我怀疑您希望顶部查询的所有结果都显示在底部查询的结果之前，则需要在数据中添加另一列以允许这种情况发生：

SELECT A.LBrCode AS BranchCode,
(SELECT B.Name FROM D001003 B WHERE A.LBrCode=B.PBrCode) AS BranchName,
C.PrdCd AS Product,
sum(D.FcyTrnAmt) AS Amount,
1 as ResultSet
FROM D009022 A INNER JOIN D009021 C
ON substring(A.PrdAcctId,1,8)=C.PrdCd
AND A.LBrCode=C.LBrCode
LEFT JOIN D009040 D
ON A.PrdAcctId=D.VcrAcctId
AND substring(D.VcrAcctId,1,8)=C.PrdCd
AND A.LBrCode=D.LBrCode
WHERE A.AcctStat <> 3 AND A.DateOpen>=@FromDate AND A.DateOpen<=@ToDate
AND C.ModuleType=11
AND D.DrCr='D' 
AND D.CanceledFlag<>'C'

GROUP BY A.LBrCode, C.PrdCd
--ORDER BY A.LBrCode

UNION ALL

SELECT A.LBrCode AS BranchCode,
(SELECT B.Name FROM D001003 B WHERE A.LBrCode=B.PBrCode) AS BranchName,
C.PrdCd AS Product,
sum(A.ActTotBalFcy) AS Balance,
2
FROM D009022 A INNER JOIN D009021 C
ON substring(A.PrdAcctId,1,8)=C.PrdCd
AND A.LBrCode=C.LBrCode
WHERE C.ModuleType=11
AND A.AcctStat <> 3 
AND A.DateOpen>=@FromDate AND A.DateOpen<=@ToDate

GROUP BY A.LBrCode, C.PrdCd
ORDER BY ResultSet,BranchCode

Answer 2

要使联合起作用，两个查询必须具有相同数量的列并且是兼容的数据类型，您可能希望转换列数据类型以确保它们是相同的。例如，您的Amount和Balance列数据类型可能存在问题。

你不能在联合中订购每个单独的语句，这没有意义，因为你将产生一个单独的输出。

但是，考虑到这些要点，您的查询应该按原样运作。

declare @test table (a int, b varchar(10))

insert into @test values (10,'test1')
insert into @test values (20,'test2')

select 
 a, b
from 
 @test

 UNION ALL 

select 
 a, b
from 
 @test 

 order by a

Answer 3

查看您的查询，我假设您的sum计算是您所有查询之间的唯一区别。

例如，上面两个union all查询之间的唯一区别是用于summation和where子句过滤器（D.DrCr='D' AND D.CanceledFlag<>'C'）的字段。如果这是真的，那么您可以使用CASE WHEN语句来处理所有6种不同的场景：

DECLARE @FromDate AS DATE = '04-Aug-2015';
DECLARE @ToDate AS DATE = '05-Aug-2015';

SELECT A.LBrCode AS BranchCode
    ,(
        SELECT B.NAME
        FROM D001003 B
        WHERE A.LBrCode = B.PBrCode
        ) AS BranchName
    ,C.PrdCd AS Product
    ,CASE 
        WHEN D.DrCr = 'D' AND D.CanceledFlag <> 'C'
            THEN sum(A.ActTotBalFcy)
        /*add other remaining conditions here */
     ELSE sum(D.FcyTrnAmt)
        END AS Amount
FROM D009022 A
INNER JOIN D009021 C ON substring(A.PrdAcctId, 1, 8) = C.PrdCd
    AND A.LBrCode = C.LBrCode
LEFT JOIN D009040 D ON A.PrdAcctId = D.VcrAcctId
    AND substring(D.VcrAcctId, 1, 8) = C.PrdCd
    AND A.LBrCode = D.LBrCode
WHERE A.AcctStat <> 3
    AND A.DateOpen >= @FromDate
    AND A.DateOpen <= @ToDate
    AND C.ModuleType = 11
GROUP BY A.LBrCode
    ,C.PrdCd
ORDER BY A.LBrCode

Answer 4

尝试这样的事情

<action android:name="android.bluetooth.adapter.extra.STATE"/>

Answer 5

然后我会创建2个CTE：

SELECT *
FROM CTE1

UNION ALL

SELECT *
FROM CTE2
GROUP BY ____
ORDER BY ______

执行UNION ALL

时，不能有超过1个GROUP BY和ORDER BY

联盟所有需要的帮助

5 个答案: