SQL join: where clause vs. on clause

Posted by BCS on Stack Overflow See other posts from Stack Overflow or by BCS
Published on 2008-12-09T20:14:52Z Indexed on 2010/04/26 16:13 UTC
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sql

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join

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on-clause

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where-clause

After reading it, this is not a duplicate of Explicit vs Implicit SQL Joins. The answer may be related (or even the same) but the question is different.

What is the difference and what should go in each?

If I understand the theory correctly, the query optimizer should be able to use both interchangeably.

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