• corbincreativecomputing (7/26/2012)


    Identity (or AutoNumber) is a column that automatically generates numeric values. A start and increment value can be set, but most DBAs leave these at 1. A GUID column also generates unique keys.

    Nimol

    Programmer

    Corbin Creative Databases, LLC, http://www.corbincreative.com[/quote%5D

    Just to add to, Identity can have negative values as well.

    ~ Lokesh Vij


    Guidelines for quicker answers on T-SQL question[/url]
    Guidelines for answers on Performance questions

    Link to my Blog Post --> www.SQLPathy.com[/url]

    Follow me @Twitter