SQL Server convert column to an identity column

Question

I am using SQL Server 2008. One int column I used as primary key but not identity column (whose value will be increased by 1 automatically). I want to convert this column to

Answer 1

Go to your table object in object explorer in sql server right click on a table say modify, than click on a field which is primary key that you want to convert to identity, than below you'll see column properties , there you need to change as (Is Identity) Yes and Idendity Increment 1.