If I set a database column as an autonumber primary key field, will the autonumbering feature prevent those values from being modifiable?
Or does the primary key nature of the column make it unmodifiable?
Both? Neither?
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If I set a database column as an autonumber primary key field, will the autonumbering feature prevent those values from being modifiable?
Or does the primary key nature of the column make it unmodifiable?
Both? Neither?
Neither. You can modify it all you want. Setting a column as autoincrement just specifies the default value for new rows, that’s it. After that it acts just like a normal column.
EDIT: Apparently this isn’t true for SQL Server, but you didn’t specify so I just went with the popular answer.