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Re: table with multiple primary key
Posted by: Peter Brawley
Date: September 01, 2014 11:23PM

It's a composite primary key. A multiple primary key isn't possible.

Your Create Table statement already created the composite PK(id,date), so you can't add date to that key.

Doing this with Alter Table would be awkward, since auto_increment is allowed only in a PK. So do it as a one-step in the Create Table statement.

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September 01, 2014 11:03PM
Re: table with multiple primary key
September 01, 2014 11:23PM
September 02, 2014 12:27AM
September 02, 2014 07:14PM


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