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Which of the following products was the first to implement true relational algebra in a PC DBMS?

IDMS

Oracle

dBase-II

R:base

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The DBMS acts as an interface between what two components of an enterprise-class database system?

Database application and the database

Data and the database

The user and the database application

Database application and SQL

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A database is called "self-describing" because it contains a description of itself.

True

False

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MCQ

The activity of a file

is a low percentages of number of records added or deleted from a file

if high, reduces processing efficiency for sequential and nonsequential files

is a measure of the percentage of existing records updated during a run

refers to how closely the files fits into the allocated

None of the above.

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A logical schema

is the entire database

is a standard way of organizing information into accessible parts

describes how data is actually stored on disk

All of the above

None of the above

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MCQ

A command that lets you change one or more fields in a record is

Insert

Modify

Look-up

All of the above

None of the above

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Banking

Engineering

General

Medical

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Miscellaneous or General

Relational Algebra

Database Systems

Data Models

The Relational Database Model

Entity Relationship (ER) Modeling

Advanced Data Modeling

Normalization

Structured Query Language (SQL)

Advanced SQL

Database Design

Transaction and Concurrency

Data Warehouses

Database Administration

Mixed

Banking

Engineering

General

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category More Database Management System Topics

Miscellaneous or General

Relational Algebra

Database Systems

Data Models

The Relational Database Model

Entity Relationship (ER) Modeling

Advanced Data Modeling

Normalization

Structured Query Language (SQL)

Advanced SQL

Database Design

Transaction and Concurrency

Data Warehouses

Database Administration

Mixed

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Community Discussion

Similar Questions

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Report Error

Report Error

Report Error

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More Database Management System Topics