How to implement a conditional Upsert stored procedure?

Question

I\'m trying to implement your basic UPSERT functionality, but with a twist: sometimes I don\'t want to actually update an existing row.

Essentially I\'m trying to synchr

Answer 1

BEGIN TRANSACTION

IF EXISTS(SELECT 1 FROM dbo.Item WHERE ContentID = @pContentID)
     UPDATE dbo.Item WITH (SERIALIZABLE)
     SET Title = @pTitle, Teaser = @pTeaser
     WHERE ContentID = @pContentID
     AND RowLocked = false
ELSE
     INSERT INTO dbo.Item
          (ContentID, Title, Teaser)
     VALUES
          (@pContentID, @pTitle, @pTeaser)

COMMIT TRANSACTION