Is using MS SQL Identity good practice?

Question

Is using MS SQL Identity good practice in enterprise applications? Isn\'t it make difficulties in creating business logic, and migrating database from one to another?

Answer 1

Good article on identities, http://www.simple-talk.com/sql/t-sql-programming/identity-columns/

IMO, migrating to another RDBMS is rarely needed these days. Even if it is needed, the best way to develop portable applications is to develop a layer of stored procedures isolating your application from proprietary features:

http://sqlblog.com/blogs/alexander_kuznetsov/archive/2009/02/24/writing-ansi-standard-sql-is-not-practical.aspx