दो तालिकाओं में शामिल होने/संघ के लिए एसक्यूएल क्वेरी

इसका परीक्षण SQL Server 2008 R2 में किया गया है। मुझे विश्वास है कि यहां सब कुछ 2005 में भी काम करेगा। 2005, जहाँ तक मुझे याद है, PIVOT और OVER को अन्य बातों के साथ पेश किया। अगर आपको कोई समस्या मिलती है तो मुझे बताएं।

DECLARE @Products TABLE
(
    ID INT IDENTITY(1, 1)
    , Name VARCHAR(30)
);

INSERT INTO @Products
VALUES ('Dummies Guide to Querying'), ('SQL Design Patterns');

DECLARE @OldProducts TABLE
(
    ID INT IDENTITY(1, 1)
    , ProductID INT
    , Location CHAR(2)
    , HistoryDate DATE
    , Sales INT
);

INSERT INTO @OldProducts
VALUES (1, 'CO', '20100601', 100)
    , (1, 'CO', '20100701', 200)
    , (1, 'CA', '20100526', 150)
    , (2, 'CA', '20100601', 175);

DECLARE @NewProducts TABLE
(
    ID INT IDENTITY(1, 1)
    , ProductID INT
    , Location CHAR(2)
    , FutureDate DATE
    , PredictedSales INT
);

INSERT INTO @NewProducts
VALUES (1, 'CO', '20110401', 200)
    , (1, 'CO', '20110601', 250)
    , (1, 'CA', '20110401', 150)
    , (2, 'CA', '20110301', 180)
    , (3, 'WA', '20110301', 100);

WITH AllProduts AS
(
    SELECT
        Products.Name
        , OldProducts.Location
        , DATENAME(MONTH, OldProducts.HistoryDate) AS MonthValue
        , OldProducts.Sales
    FROM @OldProducts AS OldProducts
    INNER JOIN @Products AS Products
        ON Products.ID = OldProducts.ProductID

    UNION ALL

    SELECT
        Products.Name
        , NewProducts.Location
        , DATENAME(MONTH, NewProducts.FutureDate) AS MonthValue
        , NewProducts.PredictedSales AS Sales
    FROM @NewProducts AS NewProducts
    INNER JOIN @Products AS Products
        ON Products.ID = NewProducts.ProductID
)
SELECT
    Name
    , Location
    , [January]
    , [Febuary]
    , [March]
    , [April]
    , [May]
    , [June]
    , [July]
    , [August]
    , [September]
    , [October]
    , [November]
    , [December]
FROM AllProduts
PIVOT
(
    SUM(Sales)
    FOR MonthValue
    IN
    (
        [January]
        , [Febuary]
        , [March]
        , [April]
        , [May]
        , [June]
        , [July]
        , [August]
        , [September]
        , [October]
        , [November]
        , [December]
    )
) PivotedTable
ORDER BY Name, Location;