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Using data from the BITS database, define a view named TopLevelClient. It consists of the number, name, address, balance, and credit limit of all clients with credit limits that are greater than or equal to $10,000.

(a) Using SQL, write the view definition for TopLevelClient.

(b) Write an SQL query to retrieve the number and name of all customers as well as the difference between their credit limit and balance in the TopLevelClient.

(c) Convert the query you wrote in (b) to the query that the DBMS will actually execute.

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