Client (clientNumber, firstName, lastName, clientCity) Account(accountNumber, #agencyNumber, #clientNumber, balance) Loan(loanNumber, #agencyNumber, #clientNumber, amount ) c) Find the average balance of customer accounts, for each agency whose average balance is greater than 10,000. The table result should have the columns agencyNumber and Balance_Average

A Guide to SQL
9th Edition
ISBN:9781111527273
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Chapter2: Database Design Fundamentals
Section: Chapter Questions
Problem 11RQ
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Given the Bank database that contains the following tables (primary keys are underlined and foreign keys are preceded with #):
Agency(agencyNumber, agencyName, city, assets)
Client (clientNumber, firstName, lastName, clientCity)
Account(accountNumber, #agencyNumber, #clientNumber, balance)
Loan(loanNumber, #agencyNumber, #clientNumber, amount )

c) Find the average balance of customer accounts, for each agency whose average balance is greater than 10,000. The table result should have the columns agencyNumber and Balance_Average

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