Question: Write an SQL SELECT query that returns a list of all accountNo in the glAccounts table that are unused (i.e., do not appear in the

Write an SQL SELECT query that returns a list of all accountNo in the glAccounts table that are unused (i.e., do not appear in the invoiceLineItems table). Demonstrate the use of a subquery and the NOT EXISTS operator to solve this problem. (Yes, it could also be solved using an OUTER JOIN; however, I am specifically calling for a subquery.)

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