Does having a primary key column mean there is an index on that column? If so, what kind of index is it?
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Does having a primary key column mean there is an index on that column? If so, what kind of index is it?
For SQL Server, which I believe from previous questions is what you’re using, when you define a PRIMARY KEY, it will automatically have a index on that column which will default to being a CLUSTERED index. You can define whether it should be a NONCLUSTERED or a CLUSTERED index when you create the constraint.