With respect to the database schema presented above, write a relational calculus expression to identify the VID of all the MOVIEVIEWERS who the same age as Bob. Your solution must return the appropriate answer for any plausible database instance.

With respect to the database schema presented above, write a relational calculus expression to identify the VID of all the MOVIEVIEWERS who the same age as Bob. Your solution must return the appropriate answer for any plausible database instance.

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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Concept explainers

Types of database architectures

A Database Architecture represents the Database Management System’s (DBMS) design (schema). The DBMS architecture makes it easy to understand the components involved in the database system and their relations. The DBMS architecture may vary based on the system on which it runs. Some systems contain both client and server machines whereas some run only on a server machine. Based on the architecture, the system can be classified as centralized, decentralized, or hierarchical.

Question

With respect to the database schema
presented above, write a relational calculus
expression to
identify the VID of all the MOVIEVIEWERS
who the same age as Bob. Your solution
must return
the appropriate answer for any plausible
database instance.

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