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left join 1

[SQL] ๊ทธ๋ฃน๋ณ„ 1๊ฑด๋งŒ ์กฐํšŒํ•˜๋Š” ๋ฐฉ๋ฒ• LEFT JOIN, ROW_NUMBER

๐Ÿ“‚ ๋ชฉ์ฐจ ์˜ˆ์‹œ ์ฟผ๋ฆฌ ํ™•์ธํ•˜๊ธฐWITH RankedData AS ( SELECT a.OrderID, c.SafeKey, ROW_NUMBER() OVER (PARTITION BY a.OrderID ORDER BY c.SafeKey) AS rn FROM SalesDB.dbo.Orders a LEFT OUTER JOIN SalesDB.dbo.CreditCheckResult b ON a.CreditCheckID = b.ID LEFT OUTER JOIN SalesDB.dbo.SafeKeyLog c ON c.SafeKey = b.SafeKey WHERE a.OrderID IN ( 10001, 10002, 100..

DB 2025.04.07
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hyonie's Stack ๐Ÿ‘ฉ๐Ÿปโ€๐Ÿ’ป

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