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708과 708A 비교해서 큰값을 택하는 SQL

admin 2025.07.12 11:54 Views : 673

INNER JOIN에서 ITEM_NO뒤에 'A'가 있는 것과도 비교해서 큰것으로 결과치를 내려고 할때. 예를 들면 b.ITEM_NO가 708이면 p.PRODUCT_NO가 708뿐만아니라 708A도 함께 비교해보고 그 값이 있으면 큰 값을 택하려 할때.

 

 

SELECT 

    TO_CHAR(p.MSRP, '$9,999,999.99') AS MSRP

FROM 

    BARCODE b

INNER JOIN 

    PRODUCT_PRICE p

ON 

    b.ITEM_NO = p.PRODUCT_NO 

    OR b.ITEM_NO || 'A' = p.PRODUCT_NO

WHERE 

    b.BARCODE = :P71_BARCODE

AND 

    p.MSRP = (

        SELECT MAX(p2.MSRP)

        FROM PRODUCT_PRICE p2

        WHERE p2.PRODUCT_NO IN (b.ITEM_NO, b.ITEM_NO || 'A')

    );

I want to
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