Help constructing query - Compare columns and replace numbers

Posted by Tommy on Stack Overflow See other posts from Stack Overflow or by Tommy
Published on 2010-03-18T15:14:19Z Indexed on 2010/03/18 15:21 UTC
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I have a feeling that this query is pretty easy to construct, I just can't figure it out.

I want to replace all numbers in table X column C, with numbers in table Z column A, where numbers from table X column C matches numbers in table Z column B.

I hope that makes sense. Perhaps a little background information will make it clearer. I've converted from one CMS to another, and the module I used to convert mapped the ids to the new database. Table X column A is the new id's. Table X column B is the old id's. Table Z is the table for an image gallery that I migrated, and column C contains the id's of the images owners.

Can anyone crack this nut?

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