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SQL Data Definition Practice Test PDF Download eBook p. 204

Learn Sql data definition mock test for exam, sql data definition MCQ with answers pdf to solve data science test 204 for online job interview. Practice Introduction to SQL Trivia Questions and answers, sql data definition Multiple Choice Questions (MCQ) for online DBMS, DBA. Free sql data definition MCQs, database transactions, introduction to dbms, java database connectivity (jdbc), algebra operations in dbms, sql data definition test prep for master's degree in computer science.

"A null value indicates an absent value that", sql data definition Multiple Choice Questions (MCQ) with choices known but doesn't exist, may exist but unknown, doesn't exist and not known, and both a and b for online SQL certification courses. Learn introduction to sql questions and answers with free online certification courses for BSc computer science.

Trivia Quiz on SQL Data Definition PDF Download eBook

SQL Data Definition Quiz

MCQ: A null value indicates an absent value that

  1. may exist but unknown
  2. known but doesn't exist
  3. doesn't exist and not known
  4. Both A and B

D

Algebra Operations in DBMS Quiz

MCQ: The operations with the ability to express queries that cannot be expressed by the basic relational-algebra operations, is known as

  1. Compound relational-algebra
  2. Composite relational-algebra
  3. Embedded relational-algebra
  4. Extended relational-algebra

D

Java Database Connectivity (JDBC) Quiz

MCQ: The ResultSetMetaData object contains metadata about the

  1. data set
  2. input set
  3. result set
  4. meta data

C

Introduction to DBMS Quiz

MCQ: A database can be regarded as a kind of

  1. Electronic file handling
  2. Electronic filing management
  3. Electronic filing storage
  4. Electronic filing cabinet

D

Database Transactions Quiz

MCQ: In the case of power outage or other system crash, the rollback occurs when the

  1. System starts
  2. System boosts
  3. System restarts
  4. System shuts down

C