Thanks Luis for posting the "other" option.
To the OP, which one is better? That is not as simple as it may seem. There are some considerations about the actual table structure to consider.
You might want to read Gail's article that explains the difference between these two approaches and the performance considerations around each of them.
http://sqlinthewild.co.za/index.php/2010/03/23/left-outer-join-vs-not-exists/[/url]
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