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Relational algebra In a simple database, there are six (6) tables. The database keeps track of restaurants, their owners, customers and their favorite foods In
Relational algebra
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 (SSNIpk], 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 50 vears of age 3) List the foods served by at least one restaurant and liked by at least o 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 Seafood Gumbo stome 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 Lafayette 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. "Henry (name of one of the owners) lives 2 Step by Step Solution
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