Chapt 4 (Intro to SQL)

Question 1

Considered one of the major reasons for the commercial success of relational databases

Answer 1

SQL language

Question 2

The origin of SQL is relational predicate calculus called _____

Answer 2

tuple calculus

Question 3

tuple calculus was proposed initially as the language ________

Answer 3

square

Question 4

SQL comes from the word

Answer 4

Sequel

Question 5

SQL is now popularly known as

Answer 5

Structured Query Language

Question 6

is an informal or practical rendering of the relational data model with syntax

Answer 6

SQL

Question 7

Main SQL command for data definition

Answer 7

create statement

Question 8

Identified by a schema name

Includes an authorization identifier and descriptors for each element

Answer 8

SQL Schema

Question 9

Schema elements

Answer 9

Tables, constraints, views, domains, and other constructs

Question 10

Named collection of schemas in an SQL environment

Answer 10

Catalog

Question 11

Relation and its tuples are actually created and stored as a _____ by the DBMS

Answer 11

file