Database Systems MCQs - Chapter 21

SQL Concepts and Queries Multiple Choice Questions PDF Download - 41

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SQL Concepts and Queries Questions & Answers PDF Download: MCQ Quiz 41

MCQ 201: The current time is returned by the method

system.time
time.system
current.time
time.current

MCQ 202: The null value is a member of all

Domains
Variables
Procedures
Languages

MCQ 203: SQL prohibits null values in the relation schema's constraint of

Primary key
Foreign key
Unique key
Candidate key

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