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E-R Diagram
for the Banking Enterprise
Database System Concepts
1
©Silberschatz, Korth and Sudarshan
Schema Diagram
for the Banking Enterprise
Database System Concepts
2
©Silberschatz, Korth and Sudarshan
Relational Schemes
for the Banking Enterprise
 The following relational schemes result:
branch (branch-name, branch-city, assets)
customer (customer-name, customer-street, customer-city)
account (account-number, branch-name, balance)
loan (loan-number, branch-name, amount)
depositor (customer-name, account-number)
borrower (customer-name, loan-number)
Database System Concepts
3
©Silberschatz, Korth and Sudarshan
Relational Schemes
for the Banking Enterprise
 Another scheme that we will occasionally use:
payment (id#, loan#, payment#, date, amount, branch)
 Note that id# is a pseudo-key, and that loan# and payment#
also form a candidate key.
Database System Concepts
4
©Silberschatz, Korth and Sudarshan