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You need to write a new query that will return names from the employee table for people who are not part of the contractors table (the two tables share a unique id, similar to social security or NI number). Your query will use a sub query to check that the employee is not in the contractors table. How might you achieve this?
on 7/30/2014 | Category:
Sql Server Interview questions
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EXISTS is used to check for existence of required data in other tables
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