Database Concepts

The number of rows in a relation

• degree

• tuple

• cardinality

• domain

SQL stands for

Data about data is ______________

• Data Description

• Metadata

• Data redundancy

• Data inconsistency

Repetition of data is called data ..............

• dependance

• redundancy

• inconsistency

• isolation

Mismatched redundant copies of data is known as data ............

• dependance

• redundancy

• inconsistency

• isolation

A ............ is an organized collection of structured data.

• information

• file

• database

• DBMS

A database ............... is a sketch of design of a planned data.

• instance

• schema

• metadata

• relation

A data ................ is a set of rules that define valid data.

• constraint

• data dictionary

• query

• all of these

A relational database consists of a collection of ..............

• tables

• fields

• records

• keys

Data redundancy may lead to data inconsistency.

• True

• False