MySQL Join a Table if Exists Question

Posted by swhitlow on Stack Overflow See other posts from Stack Overflow or by swhitlow
Published on 2010-04-26T20:42:49Z Indexed on 2010/04/26 20:53 UTC
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join

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exists

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if

I have a DB which has a table called "config". This table could possibly have a "config_cstm" table that is related by the id to the config table.

I was wondering - is there a way to dynamically check for the existence of this table in one simple select statement?

In other words, something like:

"select * from config (IF EXISTS config_cstm THEN LEFT OUTER JOIN config_cstm ON config.id = config_cstm.id_c"

I know how I would go about checking for the existence of an existing table in PHP. I was wanting to do this all in one MySQL statement though.

Any suggestions?

Thanks!

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