MERGE LoginTypes T
USING (SELECT 'System' as Description) S
ON(S.Description = T.Description)
WHEN NOT MATCHED BY TARGET
THEN INSERT(Description, CreatedTimestamp, LastUpdatedTimestamp)
VALUES('System', getdate(), getdate());USE SqlShackMergeDemo
GO
MERGE TargetProducts AS Target
USING SourceProducts AS Source
ON Source.ProductID = Target.ProductID
-- For Inserts
WHEN NOT MATCHED BY Target THEN
INSERT (ProductID,ProductName, Price)
VALUES (Source.ProductID,Source.ProductName, Source.Price)
-- For Updates
WHEN MATCHED THEN UPDATE SET
Target.ProductName = Source.ProductName,
Target.Price = Source.Price
-- For Deletes
WHEN NOT MATCHED BY Source THEN
DELETE;