Giving and removing permissions in SQL Server

The simplest approach is to use the stored procedures that Microsoft has included with the database engine.  A lot of these same procedures are called when use the GUI, but instead of showing you data one object at a time you can take a look across your server or across your database. 

Here is a list of some of these useful commands, what they do and sample output from each command.

sp_helprotect	This command will show you the permissions that have been granted or denied for all objects in a database. You can also specify the object name to see the permissions for that just that object.
sp_helprole	This command will show you a list of all the database roles  You can also specify the role name to see information about just that role.
sp_helprolemember	This command will show you a list of all roles that have users in them as well as the user name.  You can also specify the role name to see the users for just that role.
sp_helpsrvrole	This command will show you a list of all the server roles.  You can also specify the server role if you only want to see info about just that one server role.
sp_helpsrvrolemember	This command shows you logins that have access to all server roles or you can specify just one server role to examine.
sp_helpdbfixedrole	This command shows a list of fixed database roles.  You can also specify just one role.
sp_helplogins	This command returns attributes about all of your logins or you can specify just one login.
sp_helpntgroup	This command shows you windows groups that have access to the current database.
sp_helpuser	This command shows you information about users that have access to the current database.

Next Steps

• Add these commands to the list of tools that you use to manage your SQL Server. These commands work for both SQL 2000 and SQL 2005
• Use these commands to take a periodic audit of your server and database permissions.