将结果两个选择查询附加到不同的列（显示一个输出）？

Question

我有两个对SQL SERVER数据库的查询，我想将两个查询的结果都连接起来，两个查询都显示结果。union还是有什么帮助？但是合并合并所有记录时不显示两个查询列。

我的查询：

 Select INITEMS.ITEMNO,
   MAX(INITEMS.ITEMDESC#1) AS 'ITEMDESC',
   SUM(INITEMS.QTY) 'Item Sale',
   CONVERT(date, MAX(HDR.DATE)) as 'Last sale date'
   FROM   InvItems INITEMS
   INNER JOIN InvHdr HDR ON  HDR.INVNO=INITEMS.INVNO 
   WHERE INITEMS.TYPE = '3'
   GROUP BY INITEMS.ITEMNO 

   Select WRK.ITEMEMPNO,
   MAX(ITEMS.ITEMDESC#1) AS 'ITEMDESC',
   SUM(WRK.QTY) 'Item Sale',
   CONVERT(date, MAX(WRK.DATE)) as 'Last Use date'
   FROM   WRKTRANS WRK
   INNER JOIN InvItems ITEMS ON  WRK.ITEMEMPNO=ITEMS.ITEMNO
   WHERE WRK.TYPE=1 AND WRK.STATUS=1 AND WRK.ISSUED=1 AND WRK.RECHARGE=0 AND 
    ITEMS.TYPE='3'
   GROUP BY WRK.ITEMEMPNO 

Answer 1

如果您想使用UNION，那么您可以这样做吗？

SELECT 
    i.ITEMNO,
    MAX(i.ITEMDESC#1) AS ITEMDESC,
    SUM(i.QTY) AS 'Item Sale',
    'Last sale date' AS DateText,
    CONVERT(DATE, MAX(HDR.DATE)) AS MyDate
FROM   
    InvItems i
    INNER JOIN InvHdr HDR ON  HDR.INVNO=INITEMS.INVNO 
WHERE 
    i.TYPE = '3'
GROUP BY 
    i.ITEMNO 
UNION ALL
SELECT 
    WRK.ITEMEMPNO,
    MAX(ITEMS.ITEMDESC#1) AS ITEMDESC,
    SUM(WRK.QTY) AS 'Item Sale',
    'Last Use date' AS DateText,
    CONVERT(DATE, MAX(WRK.DATE)) AS MyDate
FROM   
    WRKTRANS WRK
    INNER JOIN InvItems ITEMS ON  WRK.ITEMEMPNO=ITEMS.ITEMNO
WHERE 
    WRK.TYPE=1 
    AND WRK.STATUS=1 
    AND WRK.ISSUED=1 
    AND WRK.RECHARGE=0 
    AND ITEMS.TYPE='3'
GROUP BY 
    WRK.ITEMEMPNO;

---

或者，对于“八列混乱”，您可以执行以下操作：

SELECT 
    i.ITEMNO,
    MAX(i.ITEMDESC#1) AS ITEMDESC AS ITEMDESC_1,
    SUM(i.QTY) AS 'Item Sale_1',
    CONVERT(DATE, MAX(HDR.DATE)) AS 'Last sale date',
    NULL AS ITEMPNO,
    NULL AS ITEMDESC_2,
    NULL AS 'Item Sale_2',
    NULL AS 'Last Use Date'
FROM   
    InvItems i
    INNER JOIN InvHdr HDR ON  HDR.INVNO=INITEMS.INVNO 
WHERE 
    i.TYPE = '3'
GROUP BY 
    i.ITEMNO 
UNION ALL
SELECT
    NULL,
    NULL,
    NULL,
    NULL,
    WRK.ITEMEMPNO,
    MAX(ITEMS.ITEMDESC#1) AS ITEMDESC_2,
    SUM(WRK.QTY) AS 'Item Sale_2',
    CONVERT(DATE, MAX(WRK.DATE)) AS 'Last Use date'
FROM   
    WRKTRANS WRK
    INNER JOIN InvItems ITEMS ON  WRK.ITEMEMPNO=ITEMS.ITEMNO
WHERE 
    WRK.TYPE=1 
    AND WRK.STATUS=1 
    AND WRK.ISSUED=1 
    AND WRK.RECHARGE=0 
    AND ITEMS.TYPE='3'
GROUP BY 
    WRK.ITEMEMPNO;