SQL Server – Find Stored Procedures User Can Access

Returns a report that has information about user permissions for an object, or statement permissions, in the current database.

To find stored procedures that “username” can access:

exec sp_helprotect @username = 'username'

To see all objects in database and who has access:

exec sp_helprotect

For complete capabilities see http://msdn.microsoft.com/en-us/library/ms190310.aspx