Date: 03/02/07 (IT Professionals)    Keywords: database, asp, sql, web, google

Hi! I'm currently making a website for a school project using ASP.NET and SQL and it has a registration form. How do I keep the registered entries unique like say...make sure no two people get the same login name? My 'loginname' variable in my database is data type nvarchar(50). I've tried google and some other sites but I don't think I'm getting the keywords correctly.

Thanks for your time!

Source: http://community.livejournal.com/itprofessionals/53657.html