Question

我需要显示来自下表的汇总结果，但仅当两列（TransactionType, ClientId）的一对独特时才会显示。

我当前的查询

SELECT 
    SUM(OrderQty), ClientId, OrderId 
FROM 
    Table 
GROUP BY 
    ClientId, TransactionType 
HAVING 
    COUNT(DISTINCT(TransactionType, ClientId)) > 1

输出：

TransactionType  ClientId  Product  OrderQty
--------------------------------------------
123                A01     Apples     10
123                A22     Apples     20
222                A01     Book       20
222                A01     Car        20
555                A09     Book       20
555                A09     Oranges    20
999                A01     Apples     10
999                A22     Apples     20

期望输出

TransactionType  ClientId  Product  OrderQty
--------------------------------------------
123                A01     Apples     10
123                A22     Apples     20
999                A01     Apples     10
999                A22     Apples     20

Answer 1

您可以使用与当前查询类似的派生表，并将其连接到原始表以获取结果：

SELECT s.* FROM YourTable s
INNER JOIN (SELECT t.transactionType , t.product
            FROM YourTable t
            GROUP BY t.transactionType , t.product having COUNT(*) > 1) ss
 ON(s.transactionType = t.transactionType and s.product = t.product)

这将为您提供预期的输出。

Answer 2

查看所需的输出（这与标题完全矛盾）。

SELECT ClientId,TransactionType, Min(OrderId) as OrderId, Min(OrderQty) as OrderQty
FROM Table 
GROUP BY ClientId,TransactionType 
HAVING COUNT(*) = 1

Answer 3

SELECT
    t.TransactionType,
    t.ClientId,
    t.Product,
    t.OrderQty
FROM
    Table t
JOIN
    (SELECT
        ClientId,
        TransactionType
    FROM
        Table
    GROUP BY
        ClientId,
        TransactionType
    HAVING
        COUNT(*) > 1) AS a
ON t.ClientId = a.ClientId
AND t.TransactionType = a.TransactionType

Answer 4

-- Temp table with the example data
IF OBJECT_ID('tempdb..#Tbl') IS NOT NULL 
        DROP TABLE #Tbl 

SELECT A.* 
INTO #Tbl
FROM 
(
SELECT 123 TransactionType, 'A01' ClientId, 'Apples' Product, 10 OrderQty 
UNION SELECT 123,'A22','Apples',20
UNION SELECT 222,'A01','Book',20
UNION SELECT 222,'A01','Car',20
UNION SELECT 555,'A09','Book',20
UNION SELECT 555,'A09','Oranges',20
UNION SELECT 999,'A01','Apples',10
UNION SELECT 999,'A22','Apples',20
) A


-- Requested query

SELECT 
B.TransactionType
,B.ClientId
,B.Product
,B.OrderQty
FROM 
(
SELECT 
T.TransactionType
,T.ClientId
,T.Product
,T.OrderQty
,COUNT(1) OVER(PARTITION BY T.TransactionType,T.ClientId) N
FROM #Tbl T
)
B
WHERE B.N = 1

SQL Server显示结果，其中不同列的计数大于1

4 个答案: