MS-SQL Related

Giganews Newsgroups
Subject: MS-SQL Related
Posted by:  Dot Net Daddy (cagriand…
Date: 4 Aug 2006


What is uniqueidentifier as a data type?

Also what is the data type for setting unique STRINGS ((nchar,
nvarchar), for example to be used for emails and user names in a user
registration system).

SQL Server does not allow me set primary keys for columns where data
types are not INT.

Thanks in advance.