This scripts adds the users to the specified Windows NT Group.
This will be helpful if we want to give the access to group of users to a sql server, which is runing with Windows Authentication. Create a NT group and give the access on SQL and run this script it adds the user into the Group.
For most DBAs, normalization is an understood concept, a bread and butter bit of knowledge. However, it is not at all unusual to review a database design by a development group for an OLTP (OnLine Transaction Processing) environment and find that the schema chosen is anything but properly normalized. This article by Brian Kelley will give you the core knowledge to data model.