Unit 2: Keys

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Unit 2: Keys

September 23, 2020 No Comments
Types of keys in DBMS 

Super Key – A super key is a set of one of more columns (attributes) to uniquely identify rows in a table. Candidate Key – A super key with no redundant attribute is known as candidate key
Primary Key – A primary is a column or set of columns in a table that uniquely identifies tuples (rows) in that table. 

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