Microsoft SQL Server
- Getting started with Microsoft SQL Server
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- Create table w/ identity column as primary key
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- Delete primary key
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Microsoft SQL Server Primary Keys
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Remarks
Primary keys are used to uniquely identify a record in a table. A table may only have a single primary key (though the primary key can consist of multiple columns), and a primary key is required for certain types of replication.
Primary keys are often used as (but don't have to be) the clustered index on a table.
Primary Keys Related Examples
- Add primary key to existing table
- Create table w/ composite key
- Create table w/ GUID primary key
- Create table w/ identity column as primary key
- Create table w/ natural key
- Delete primary key
