suresh What is a Primary Key and Why is it Important in Database Design?
A primary key is a unique identifier for each record in a database table. It is important in database design because it ensures the integrity and accuracy of the data by uniquely identifying each record. The primary key enforces data integrity by preventing duplicate records and ensuring that each record can be uniquely identified and accessed efficiently.
In addition, a primary key is crucial for establishing relationships between tables in a database through foreign keys. This helps maintain data consistency and allows for efficient data retrieval and management.
Overall, the primary key plays a critical role in database design by ensuring data accuracy, integrity, and efficiency in data retrieval and manipulation.
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