dwain.c (10/27/2013)
guy.stephens (10/27/2013)
Much as we love the Merge statement in my workplace, we seem to be running into deadlocking problems that we haven't had when using the UPDATE/INSERT .. LEFT JOIN approach.We haven't investigated too deeply but are tending back to UPDATE/INSERT on large datasets. Would be glad to hear from anyone else who has experienced this.
I personally have not experienced this issue, however with a 28% performance hit it wouldn't surprise me.
I would say that if you are really expecting to INSERT/UPDATE 100s of 1000s of rows, it might be a good idea to stick to the traditional.
I guess the key words here are "it depends."
+1
As for the article it is a nice one and good for someone to understand the working of MERGE statement, and especially for the decide whether to with MERGE or Not.