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History of Database Systems Practice Test PDF Download eBook p. 321

Learn History of database systems mock test for exam, history of database systems MCQ with answers pdf to solve data science test 321 for online job interview. Practice DBMS Interview Questions Trivia Questions and answers, history of database systems Multiple Choice Questions (MCQ) for online DBMS, DBA. Free history of database systems MCQs, basic structure of sql queries, advanced aggregation features, aggregate functions, database design, history of database systems test prep for BSc computer science.

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Trivia Quiz on History of Database Systems PDF Download eBook

History of Database Systems Quiz

MCQ: Data processing tasks such as payroll were automated, with data stored on

  1. Units
  2. Hard disks
  3. Floppy disks
  4. Tapes

D

Database Design Quiz

MCQ: Database design mainly involves the design of the database

  1. Schema
  2. Tables
  3. Models
  4. Queries

A

Aggregate Functions Quiz

MCQ: The predicate in the where clause is applied on the result relation of the from clause, if the

  1. Where clause is present
  2. Where clause is not present
  3. Select clause is present
  4. Select clause is not present

A

Advanced Aggregation Features Quiz

MCQ: SQL permits specification to the user about the occurrence of the null values by the

  1. nulls begin and nulls end
  2. nulls atomic and nulls end
  3. nulls first and nulls last
  4. start nulls and last nulls

C

Basic Structure of SQL Queries Quiz

MCQ: A list of the relations to be accessed in the evaluation of the query, with the clause

  1. Define clause
  2. From clause
  3. Where clause
  4. Select clause

B