Which database relation(s) could be joined with the result of the query of the previous inquiry to find the Id, name, city, and loan amount for the borrowers having the smallest loan amount?

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
Section: Chapter Questions
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For the attached database, use relational algebra and find the loan_numbers only for the loans with the smallest loan amounts. (Using renaming and set difference).

Which database relation(s) could be joined with the result of the query of the previous inquiry to find the Id, name, city, and loan amount for the borrowers having the smallest loan amount?

Practice Exercises
branch(branch_name, branch_city, assets)
customer (ID, customer_name, customer_street, customer_city)
loan (loan_number, branch_name, amount)
borrower (ID, loan_number)
account (account_number, branch_name, balance)
depositor (ID, account number)
Figure 2.18 Bank database.
61
Transcribed Image Text:Practice Exercises branch(branch_name, branch_city, assets) customer (ID, customer_name, customer_street, customer_city) loan (loan_number, branch_name, amount) borrower (ID, loan_number) account (account_number, branch_name, balance) depositor (ID, account number) Figure 2.18 Bank database. 61
Expert Solution
Step 1

Question 1
RENAME loan (loan_number1, branch_name1, amount1) SET DIFFERENCE loan, loan_number1

 

Question 2

The relations that could be joined are borrower and loan. 

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