Database Queries Help?
Hi I have an additional ICT exam coming up and I am looking at past papers and one of the questions is this "Produce a query to check if the person on the telephone is an existing customer." Does anyone know how to do this thanks in advance.
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This could be done a million ways. You need to be more specific.
Help is here http://www.w3schools.com/sql/default.asp
Learn how to create SQL queries.