MySql Query to return number of photos in each album

Posted by GivenPie on Stack Overflow See other posts from Stack Overflow or by GivenPie
Published on 2012-12-10T05:01:36Z Indexed on 2012/12/10 5:03 UTC
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mysql

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sql

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query

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foreign-keys

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primary-key

MY table is set up like this, all I need to do is call a query to my Photos table.

I have PhotoID as the primary key and GalleryID as the foreign key to Gallery. How can I could the number of unique PhotoID's for each multiple GalleryIDs.

So to speak there are may duplicate GalleryIDs because there are many photos in a gallery. So I just need to could the number of unique PhotoIDs associated with that GalleryID.

Can it be done in one query?

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