Upper limit for autoincrement primary key in SQL Server

Question

What is the upper limit for an autoincrement primary key in SQL Server? What happens when an SQL Server autoincrement primary key reaches its upper limit?

Answer 1

Data types descriptions:

BIGINT    Integer data from -2^63 through 2^63 - 1

INT       Integer data from -2^31 through 2^31 - 1

SMALLINT  Integer data from -2^15 through 2^15 - 1

TINYINT   Integer data from 0     through 255

When you reach the upper limit the autoincrement goes to the lower limit.