SQL 包含左连接、Where 子句和 Sum() 的语句？

Question

我真的在为下面的问题而苦苦挣扎 SQL。我已经尝试了很多不同的东西，但我无法让它们工作。

我基本上需要做的是 LEFT OUTER JOIN 这个有效的 SQL 语句：

SELECT   "TABLE1"."Sheet Number",
         "TABLE1"."ID Number",
         "TABLE1"."Identification",
         "TABLE1"."Job Date",
         "TABLE1"."p2c",
         "TABLE2"."Range",
         "TABLE1"."bcr",
         "TABLE1"."Dataset ID",
         "TABLE1"."ACC",
         "TABLE1"."GNC",
         "TABLE1"."Year",
         "TABLE1"."Period",
         "TABLE1"."Week",
         "TABLE1"."Job_ID"
FROM     "DATABASE"."dbo"."TABLE2" "TABLE2" LEFT OUTER JOIN "DATABASE"."dbo"."TABLE1" "TABLE1"
         ON (((("TABLE2"."Contract"="TABLE1"."GNC")
         AND ("TABLE2"."FromPeriod"="TABLE1"."Period"))
         AND ("TABLE2"."FromWeek"="TABLE1"."Week"))
         AND ("TABLE2"."FromYear"="TABLE1"."Year"))
WHERE    "TABLE1"."ACC"='ACCOUNT57' 
         AND "TABLE1"."Dataset ID"=5 
         AND "TABLE1"."bcr"=1 
         AND "TABLE2"."Range"='Week'
ORDER BY "TABLE1"."Sheet Number"

这个：

SELECT  "SALES"."JobId",
        "SALES"."Total",
        SUM("SALES"."Total") AS JOBTOTAL
FROM   "DATABASE"."dbo"."SALES" "SALES"
GROUP BY "SALES"."JobId"
ON "SALES"."JobId"="TABLE1"."Job_ID"

但是，在尝试实施我在网上找到的解决方案时，其他连接给我带来了很多麻烦 confusion/frustration。我读到这可能是 WHERE 和 GROUP BY 语句不好用？？

但我似乎无法获得我在网上找到的任何解决方案。我尝试过的一种解决方案看起来只是将 SQL 语句与括号内的 SUM() 和 GROUP BY（我的底部语句）包裹起来并加入其中？

有人能帮忙吗？

感谢您的宝贵时间。

Answer 1

SELECT
    t1.Sheet Number,
    t1.ID Number,
    t1.Identification,
    t1."Job Date",
    t1.p2c,
    t1."Range",
    t1.bcr,
    t1.Dataset ID,
    t1.ACC,
    t1.GNC,
    t1."Year",
    t1.Period,
    t1."Week",
    t1.Job_ID,
    SUM(s.Total) AS JOBTOTAL
FROM    
    dbo.TABLE1 t1
    LEFT JOIN dbo.Sales s
       ON t.Job_Id = s.Job_id
WHERE
    t1.ACC='ACCOUNT57' 
    AND t1.Dataset ID=5 
    AND t1.bcr=1 
    AND EXISTS (SELECT *
             FROM
                dbo.TABLE2 t2
             WHERE
                t1.GNC = t2.Contract
                AND t1.Period = t2.FromPeriod
                AND t1."Week" = t2.FromWeek
                AND t1."Year" = t2.FromYear
                AND t2."Range"='Week')
GROUP BY
    t1.Sheet Number,
    t1.ID Number,
    t1.Identification,
    t1."Job Date",
    t1.p2c,
    t1."Range",
    t1.bcr,
    t1.Dataset ID,
    t1.ACC,
    t1.GNC,
    t1."Year",
    t1.Period,
    t1."Week",
    t1.Job_ID
ORDER BY
    t1.Sheet Number

你也可以这样做：

SELECT DISTINCT
    t1.Sheet Number,
    t1.ID Number,
    t1.Identification,
    t1."Job Date",
    t1.p2c,
    t1."Range",
    t1.bcr,
    t1.Dataset ID,
    t1.ACC,
    t1.GNC,
    t1."Year",
    t1.Period,
    t1."Week",
    t1.Job_ID,
    s.JOBTOTAL
FROM    
    dbo.TABLE1 t1

    INNER JOIN dbo.TABLE2 t2
    ON t1.GNC = t2.Contract
    AND t1.Period = t2.FromPeriod
    AND t1."Week" = t2.FromWeek
    AND t1."Year" = t2.FromYear
    AND t2."Range"='Week'

    LEFT JOIN ( SELECT
                SUM(s.Total) AS JOBTOTAL
             FROM
                dbo.Sales s
             WHERE
                t.Job_Id = s.Job_id) s
WHERE
    t1.ACC='ACCOUNT57' 
    AND t1.Dataset ID=5 
    AND t1.bcr=1 
ORDER BY
    t1.Sheet Number

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