A bank has a database with accounts. For each account it records the (unique) account number...
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A bank has a database with accounts. For each account it records the (unique) account number and the current balance. The database also has information about depositors -- their name, (unique) social-security number, and their address. Finally, the bank also stores, for each account, the depositor or depositors (in the case of joint accounts), that own the account. There is only one reasonable E/R diagram for this database structure. Draw this E/R diagram, and then tell which of the following appears in the E/R diagram for this bank's database. a) A diamond labeled Accounts. b) An oval labeled social-security-number with an underline. Oc) A recangle labeled depositor-name. d) A diamond labeled address. A bank has a database with accounts. For each account it records the (unique) account number and the current balance. The database also has information about depositors -- their name, (unique) social-security number, and their address. Finally, the bank also stores, for each account, the depositor or depositors (in the case of joint accounts), that own the account. There is only one reasonable E/R diagram for this database structure. Draw this E/R diagram, and then tell which of the following appears in the E/R diagram for this bank's database. a) A diamond labeled Accounts. b) An oval labeled social-security-number with an underline. Oc) A recangle labeled depositor-name. d) A diamond labeled address.
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Related Book For
Modern Database Management
ISBN: 978-0133544619
12th edition
Authors: Jeff Hoffer, Ramesh Venkataraman, Heikki Topi
Posted Date:
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