I have a full working table. it already has data. I need to put another column that will serve as a serial code of each row that was created. the format of the serial code would be user-1, user-2, etc. how do I do that?
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u can do that by `what have you tried?` – echo_Me Jan 30 '13 at 11:20
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possible duplicate http://stackoverflow.com/questions/3569347/adding-a-new-sql-column-with-a-default-value – Bhavik Shah Jan 30 '13 at 11:22