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Introduction to Relational Databases Lecture 8

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Questions and Answers

In a database, what is an 'attribute' typically referred to as?

Row
Column (correct)
Tuple
Field

What SQL statement is used to delete a row from a table based on selection criteria?

ERASE
DROP
DELETE (correct)
REMOVE

What is the formal language supported by a database management system to describe the structure or format of a database?

Formal Schema
DB Language
Data Linguistics
Database Model (correct)

What does the basic rule state when representing data objects and their relationships in a database?

Use relationships instead of storing the same string data twice (A) Signup and view all the answers

What does a relation in a database represent?

Table with Tuples and Attributes (A) Signup and view all the answers

What is the primary method used to model data in relational databases?

Rows and Columns (C) Signup and view all the answers

Which of the following is a major Database Management System?

Oracle (C) Signup and view all the answers

What is the purpose of SQL in relation to the database?

Create, Retrieve, Update, Delete data (C) Signup and view all the answers

Which Database Management System is known for being simpler but very fast and scalable?

MySql (B) Signup and view all the answers

What is the purpose of the Insert statement in SQL?

To insert a row into a table (D) Signup and view all the answers

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