小编典典

没有源表的SQL Server MERGE

sql

我正在从此页面学习如何使用SQL Server MERGE语句:https : //technet.microsoft.com/zh-
cn/library/bb522522(v= sql.105).aspx

MERGE dbo.FactBuyingHabits AS Target
USING (SELECT CustomerID, ProductID, PurchaseDate FROM dbo.Purchases) AS Source
    ON (Target.ProductID = Source.ProductID AND Target.CustomerID = Source.CustomerID)

WHEN MATCHED THEN
    UPDATE SET Target.LastPurchaseDate = Source.PurchaseDate

WHEN NOT MATCHED BY TARGET THEN
    INSERT (CustomerID, ProductID, LastPurchaseDate)
    VALUES (Source.CustomerID, Source.ProductID, Source.PurchaseDate)

OUTPUT $action, Inserted.*, Deleted.*;

但是,我可以找到的所有示例(例如上面的示例)都使用一个实际的表作为Source。是否可以直接传递数据?我宁愿不为此创建一个临时表(如果可能并建议使用?)如何修改上面的查询?

谢谢


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2021-04-22

共1个答案

小编典典

试试这种格式:

MERGE TARGET_TABLE AS I
USING (VALUES ('VALUE1','VALUE2')) as s(COL1,COL2)
ON I.COL1 = s.COL1
WHEN MATCHED THEN
2021-04-22