Database

Question 1

Schema

Answer 1

a data definition that describes a data collection

Question 2

Physical Schema (B2.3-3.2.1)

Answer 2

the physical schema is the part of the three schema architecture that is responsible for describing the data storage and access mechanisms on the host computer system.

Question 3

NOT is an example of an SQL logical operator.

Answer 3

Yes, other SQL Logical operators AND, OR