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theory behind updating a table based on a key from another table


svalowden

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I'm pretty new to PHP and MySQL but I've downloaded some scripts and have almost everything working pretty well.  My problem is that I have a users table linked to a profile table through the email column.  What I want to do is allow a logged in user to update the profile table.  When I do a join of the two tables I can display all of the data in either table but I can't update any of the data.  The tables update fine individually.  Is JOIN the way to do it or is there some other way?

 

I'm using MySQL v4.1.

 

 

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