5 Questions
What is the purpose of keys in DBMS?
To uniquely identify a row of data in a table
Which type of key uniquely identifies a row in a table?
Candidate key
Which key type can be a combination of two or more columns to uniquely identify a row?
Composite key
What is the main function of a foreign key in DBMS?
To ensure referential integrity between related tables
In a real-world application with thousands of records, why are keys important in a DBMS system?
To uniquely identify any row of data in a table
Learn about the different key types in database management systems, including candidate, super, primary, foreign, compound, and composite keys. Understand the importance of keys in identifying rows and establishing relationships between tables.
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