Database - The Relational Model and Normalization - Discussion
Discussion Forum : The Relational Model and Normalization - General Questions (Q.No. 5)
5.
The primary key is selected from the:
Discussion:
15 comments Page 2 of 2.
Rahul said:
1 decade ago
Guys. Does candidate or unique key has got the same property or features of Primary key?
Lovepreet said:
1 decade ago
One table contain multiple candidate key by single primary key.
Karthik said:
1 decade ago
Candidate key is a combination of two or more attributes (emp name, emp street), from which primary key will be derived, primary key derived from set of candidate keys.
Siddhu said:
1 decade ago
A Candidate Key can be any column or a combination of columns that can qualify as unique key in database. There can be multiple Candidate Keys in one table.
Each Candidate Key can qualify as Primary Key. Primary Key " A Primary Key is a column or a combination of columns that uniquely identify a record.
Each Candidate Key can qualify as Primary Key. Primary Key " A Primary Key is a column or a combination of columns that uniquely identify a record.
Elias joseph said:
8 years ago
Minimum super key is called candidate key so primary key is the part of the candidate key.
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