Describe the purpose and significance of a prim... - JSS3 Computer Studies Databases 1 Question
Describe the purpose and significance of a primary key in a relational database.
A primary key is a unique identifier for each record in a relational database. It serves the purpose of ensuring the uniqueness of each record, preventing duplication and ensuring data integrity. The primary key is used for efficient data retrieval and management, acting as a reference point for establishing relationships with other tables.
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