3,877 views

2 Answers

Best answer
5 votes
5 votes

Answer: (b)

Explanation: The Data Control Language (DCL) is a subset of the SQL that allows database administrators to configure security access to relational databases. It consists of only three commands: GRANT, REVOKE, and DENY.

Reference: http://databases.about.com/od/Advanced-SQL-Topics/a/Data-Control-Language-Dcl.htm

selected by
Answer:

Related questions

7 votes
7 votes
3 answers
1
go_editor asked Jun 10, 2016
3,694 views
Which of the following is aggregate function in SQL?AvgSelectOrdered bydistinct
5 votes
5 votes
3 answers
2
go_editor asked Jun 10, 2016
7,441 views
Which of the following is correct with respect to Two phase commit protocol?Ensures serializabilityPrevents DeadlockDetects DeadlockRecover from Deadlock
4 votes
4 votes
2 answers
3
go_editor asked Jun 10, 2016
7,825 views
BCNF is not used for cases where a relation hasTwo (or more) candidate keysTwo candidate keys and compositeThe candidate key overlapTwo mutually exclusive foreign keys
8 votes
8 votes
5 answers
4
go_editor asked Jun 10, 2016
4,397 views
Which operation is used to extract specified columns from a table?ProjectJoinExtractSubstitute