Auto increment primary key in SQL Server Management Studio 2012

Question

How do I auto increment the primary key in a SQL Server database table, I\'ve had a look through the forum but can\'t see how.

Answer 1

If the table is already populated it is not possible to change a column to IDENTITY column or convert it to non IDENTITY column. You would need to export all the data out then you can change column type to IDENTITY or vice versa and then import data back. I know it is painful process but I believe there is no alternative except for using sequence as mentioned in this post.