Question#4 Answer below question, considering the relational database as represented in the following tables. acct_id A-301 A-307 A-318 A-319 A-322 loan_id L-421 L-445 L-437 L-419 branch_name New York Seattle Los Angeles New York Los Angeles branch_name San Francisco Los Angeles Las Vegas Seattle balance 350 275 550 80 275 account amount 7500 2000 4300 2900 loan cust_name acct_id A-318 A-322 A-319 A-307 A-301 depositor Johnson Smith Reynolds Lewis Reynolds cust_name loan_id Anderson L-437 Jackson L-419 L-421 L-445 borrower Lewis Smith 1. Find names of all customers with a bank account at the bank using relational algebra 2. Find names of all customers with a loan account at the bank using relational algebra 3. Find names of all customers that have either a bank account or a loan at the bank using relational algebra.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Database Systems: Design and Application

Question #4
Answer below question, considering the relational database as represented in the following tables.
acct_id
A-301
A-307
A-318
A-319
A-322
loan_id
L-421
L-445
L-437
L-419
branch_name balance
New York
Seattle
Los Angeles
New York
Los Angeles
branch_name
San Francisco
Los Angeles
Las Vegas
Seattle
350
275
550
80
275
account
amount
7500
2000
4300
2900
loan
cust_name acct_id
A-318
A-322
A-319
A-307
A-301
depositor
Johnson
Smith
Reynolds
Lewis
Reynolds
cust_name loan_id
Anderson L-437
Jackson
L-419
Lewis
Smith
L-421
L-445
borrower
1. Find names of all customers with a bank account at the bank using relational algebra
2. Find names of all customers with a loan account at the bank using relational algebra
3. Find names of all customers that have either a bank account or a loan at the bank using
relational algebra.
Transcribed Image Text:Question #4 Answer below question, considering the relational database as represented in the following tables. acct_id A-301 A-307 A-318 A-319 A-322 loan_id L-421 L-445 L-437 L-419 branch_name balance New York Seattle Los Angeles New York Los Angeles branch_name San Francisco Los Angeles Las Vegas Seattle 350 275 550 80 275 account amount 7500 2000 4300 2900 loan cust_name acct_id A-318 A-322 A-319 A-307 A-301 depositor Johnson Smith Reynolds Lewis Reynolds cust_name loan_id Anderson L-437 Jackson L-419 Lewis Smith L-421 L-445 borrower 1. Find names of all customers with a bank account at the bank using relational algebra 2. Find names of all customers with a loan account at the bank using relational algebra 3. Find names of all customers that have either a bank account or a loan at the bank using relational algebra.
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