Part A Create a database called AWESOME and initialize it with the following schema: Suppliers(sid: integer, sname: string, address: string) Parts(pid: integer, pname: string, color: string) Catalog(sid: integer, pid: integer, cost: real) The Catalog relation lists the prices charged for parts by Suppliers. Write the SQL script to create the tables, including implied foreign keys, and populate it with sample data. Sample data should be minimum 4 records each and able to prove the queries in part B are accurate. (ie Query # 4 requires a supplier with a specific name to be included) Part B Write the following queries in SQL: Find the pnames of parts supplied by Acme Widget Suppliers and no one else. Find the sids of suppliers who charge more for some part than the average cost of that part (averaged over all the suppliers who supply that part). For each part, ﬁnd the sname of the supplier who charges the most for that part. Find the sids of suppliers who supply only red parts. Find the sids of suppliers who supply a red part and a green part. Find the sids of suppliers who supply a red part or a green part. For every supplier that only supplies green parts, print the name of the supplier and the total number of parts that she supplies. For every supplier that supplies a green part and a red part, print the name and price of the most expensive part that she supplies.

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

Problem 1PE

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Part A

Create a database called AWESOME and initialize it with the following schema:

Suppliers(sid: integer, sname: string, address: string)
Parts(pid: integer, pname: string, color: string)
Catalog(sid: integer, pid: integer, cost: real)

The Catalog relation lists the prices charged for parts by Suppliers. Write the SQL script to create the tables, including implied foreign keys, and populate it with sample data. Sample data should be minimum 4 records each and able to prove the queries in part B are accurate. (ie Query # 4 requires a supplier with a specific name to be included)

Part B

Write the following queries in SQL:

Find the pnames of parts supplied by Acme Widget Suppliers and no one else.
Find the sids of suppliers who charge more for some part than the average cost of that part (averaged over all the suppliers who supply that part).
For each part, ﬁnd the sname of the supplier who charges the most for that part.
Find the sids of suppliers who supply only red parts.
Find the sids of suppliers who supply a red part and a green part.
Find the sids of suppliers who supply a red part or a green part.
For every supplier that only supplies green parts, print the name of the supplier and the total number of parts that she supplies.
For every supplier that supplies a green part and a red part, print the name and price of the most expensive part that she supplies.

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