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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 ___________
set2018
4.0k
views
set2018
asked
Nov 12, 2017
Databases
databases
keys
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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?
srestha
505
views
srestha
asked
Sep 16, 2017
Databases
foreign
keys
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–
2
votes
1
answer
3
foreign key
set2018
634
views
set2018
asked
Sep 14, 2017
Databases
foreign
keys
+
–
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 ?
stblue
463
views
stblue
asked
Sep 1, 2017
Databases
databases
keys
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–
2
votes
1
answer
5
what is the num of superkey can we get from a1,a2...a n attributes?
hem chandra joshi
427
views
hem chandra joshi
asked
Aug 23, 2017
Databases
databases
keys
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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
slowpoke
429
views
slowpoke
asked
May 4, 2017
Databases
keys
databases
+
–
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