Why are keys important in SQL databases?
An example of an AI chatbot conversation about the significance of keys in SQL databases.
Why are keys important in SQL databases?
Keys are crucial in SQL databases as they uniquely identify records, ensuring data integrity and enabling efficient querying.
What types of keys are there in SQL?
There are several types of keys in SQL, including primary keys, foreign keys, unique keys, and composite keys.
Can you explain the difference between primary and foreign keys?
A primary key uniquely identifies a record in a table, while a foreign key links to a primary key in another table, establishing a relationship.
How do keys affect database performance?
Keys improve database performance by optimizing search queries and ensuring efficient data retrieval through indexing.
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