What are the different types of primary keys in databases?
An example of an AI chatbot conversation about primary key types in databases.
What are the different types of primary keys in databases?
In databases, primary keys can be classified into several types: single primary key, composite primary key, and surrogate key.
Can you explain what a composite primary key is?
A composite primary key is a primary key that consists of two or more columns in a table, uniquely identifying each row.
What is a surrogate key?
A surrogate key is an artificial key, often a sequential number, used to uniquely identify a record when no natural key is available.
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