Question

I am having a problem in creating two identity columns in a single table. This is my part of job… They need two identity columns in a single table at any cost. Is there any way to do this.

Please provide any syntax for creating two identity columns in a single table at a time or later also.

Thanks in Advance,
Shashra

Answer 1

In SQL Server, you can have a computed column which just holds the same value as an identity (or any other) column:

CREATE TABLE [dbo].[test](
    [id] [int] IDENTITY(1,1) NOT NULL,
    [idCopy]  AS ([id]),
    [whatever] [nvarchar](max) NOT NULL
)