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Could someone give me some guidance on when I should use WITH (NOLOCK) as opposed to SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
What are the pros/cons of each? Are there any unintended consequences you’ve run into using one as opposed to the other?
They are the same thing. If you use the
set transaction isolation levelstatement, it will apply to all the tables in the connection, so if you only want anolockon one or two tables use that; otherwise use the other.Both will give you dirty reads. If you are okay with that, then use them. If you can’t have dirty reads, then consider
snapshotorserializablehints instead.