Answered step by step
Verified Expert Solution
Question
1 Approved Answer
In a simple database, there are six (6) tables. The database keeps track of restaurants, their owners, customers and their favorite foods. In particular, an
In a simple database, there are six (6) tables. The database keeps track of restaurants, their owners, customers and their favorite foods. In particular, an owner can own several restaurants. In each restaurant different types of foods are served. Different customers of the restaurant like different types of foods. The database schema is as follows: DATABASE: RESTAURANT (Restaurant_name (pk], City, Phone, Owner_SSN[fk]) FOOD (Food_name [pk], Type, Country) CUST (SSN (pk], Name, Birth_year, Fav_food[fk], Gender) LIKES (SSN[fk], Food[fk]) SERVES (Restaurant[fk], Food[fk]) OWNER (SSN(pk], Name, City, Address, Phone) Provide a relational algebra for the following queries: 1) List name, gender, and age of all customers. 2) List all male customers older than 65 years of age. 3) List the foods served by at least one restaurant and liked by at least one customer. 4) List the SSN and name of customers who like their favorite food. 5) List the name and phone number of all owners who do not serve Bread Pudding in their restaurants. 6) Customers should like their favorite food. List the SSN and name of all customers who DO NOT like their favorite food. 7) List the name of the restaurants whose owners live in Baton Rouge. 8) List the name of owners whose restaurants serve food type "A". 9) List phone numbers that are recorded both for the restaurant and the owner phone (you cannot use JOIN for this question) 10) List name of owners who live in the same city that Mr. Jacob" (name of one of the owners) lives
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started