How can I have two columns in SQL Server auto increment?

Question

I have two columns in a table of a SQL server DB that I would like to autoincrement when new fields are added. However, Managment Studio wont allow me to set two columns to

Answer 1

There can only be one auto increment field per table. But, you could have a calculated field based on the auto increment field. Or, you could have an int field where you manage the sequence by front end code or by a trigger. And also you could use a sequence in SQL Server.

CREATE SEQUENCE MySequence START WITH 100;

CREATE TABLE MyTable
(
    RealIdentity INT IDENTITY(1,1),
    RandomCol NVARCHAR(100),
    FakeIdentity INT DEFAULT NEXT VALUE FOR MySequence
);