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Recent questions tagged keys

5 votes
1 answer
1
number of superkey
consider the following relational schema R(ABCDE) .The number of super keys in relation R if every two attributes of relation R is candidate keys are ___________
consider the following relational schema R(ABCDE) .The number of super keys in relation R if every two attributes of relation R is candidate keys are ___________
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0 votes
0 answers
2
Foreign Key
How one to many relation refers a foreign key?
How one to many relation refers a foreign key?
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2 votes
1 answer
3
foreign key
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1 votes
3 answers
4
Self Doubt
Primary key is subset or proper subset of superkey ?
Primary key is subset or proper subset of superkey ?
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0 votes
1 answer
6
Question Bank GATE
Find the Odd one Out: Candidate Key Super Key Primary Key Alternate Key
Find the Odd one Out: Candidate KeySuper KeyPrimary KeyAlternate Key
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