Getting Error Trying to Update MySQL Database

This problem is probably related to my query, but I just can't figure out what I'm doing wrong.

This is the first time I have set up FCKeditor. I am editing several different fields, including one that uses FCKeditor.

This is the query I am attempting to make:

UPDATE `page_content_t` SET 
            title       = 'View Shopping Cart - Store Name - Cambio Jeans, Joseph Ribkoff, Christopher Blue Jeans, A\'Nue Ligne',
            keywords    = 'Store Name, cambio jeans, christopher blue jeans, joseph ribkoff dresses, a\'nue ligne, tolani collection',
            description   = 'View Shopping Cart at Store Name.',
            header_image   = 'view-cart.png',
            header_text   = 'View Shopping Cart',
            page_content   = '<p>When our online store is fully implemented you will be able to view the contents of your shopping cart here.</p>',
          WHERE page_content_id = '7'

I get the error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE page_content_id = '7')' at line 8

When I copy and paste the query directly into PHPMyAdmin, it works perfectly. So I am completely stumped. Apparently MySQL likes the query, but not the way I am trying to send it? I have tried to edit several different pages this way to no avail--I get the same error every time. I selected this particular page for the sample because it is has the shortest page text.

Any ideas/suggestions would be greatly appreciated!

Thanks,

--Eri