Tune procedures and queries before or after implementing RAC?

After implementation of RAC do I need to tune my procedures and SQL queries? Should I tune my procedures and SQL queries before implementing RAC?

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All queries and stored procedures should be tuned, whether you are running RAC or not. One of the nice things about RAC is that what works in a non-RAC environment should also work in a RAC environment without additional tuning. There are a few exceptions to that rule, but for the most part, your tuning does not depend on RAC.

This was first published in May 2006

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