Search multiple tables in database via textbox

Hi,
I have created a search page which outputs results in a repeater. It uses a stored procedure to search a table %like a textbox value, what's the best way to make it search multiple tables and output the results on one button click?
As i could just use seperate stored procedures and repeaters for each table i want to search, which is only 2, but this seems inefficient.


Many Thanks
Grant
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