Free MCQsLearn App Download - Aggregate Functions Practice Test PDF Download eBook p. 75
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"Aggregate functions are functions that take a set or multiset of values as input and return", aggregate functions Multiple Choice Questions (MCQ) with choices multiple sets, single value, multiple attributes, and a relation to learn computing courses online. Learn introduction to sql questions and answers with free online certification courses for information and communication technology.
Trivia Quiz on Aggregate Functions PDF Download eBook
MCQ: Aggregate functions are functions that take a set or multiset of values as input and return
- Single value
- Multiple sets
- Multiple attributes
- A relation
A
MCQ: The indexing technique should perform the types of access that are supported
- Efficiently
- Minimum
- Maximum
- Specifically
A
MCQ: A two-phase locking protocol variant that requires that all locks be held until the transaction commit is called
- Lock-point two-phase locking protocol
- Deadlock two-phase locking protocol
- Strict two-phase locking protocol
- Rigorous two-phase locking protocol
D
MCQ: The operations of Natural-join are
- Commutative
- Associative
- Distributive
- Conjunctive
B
MCQ: Ensuring enough free disk space availability for normal operations, are goals to be achieved by
- Database Manager
- Database system
- Database administrator
- Database users
C