sp_helpntgroup (Transact-SQL MetaData) Definition

Please note: that the following source code is provided and copyrighted by Microsoft and is for educational purpose only.
The meta data is from an SQL 2012 Server.

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Definition:

sys.sp_helpntgroup(nvarchar @ntname)

MetaData:

 create procedure sys.sp_helpntgroup  
    @ntname       sysname = NULL  
AS  
    if @ntname is not null  
    begin  
        --  VALIDATE GIVEN NAME  
        if not exists (select * from sysusers where name = @ntname and isntgroup = 1)  
        begin  
            raiserror(15420, -1, -1, @ntname)  
            return (1)  
        end  
  
        --  RESULT SET FOR SINGLE GROUP  
        select 'NTGroupName' = u.name, 'NtGroupId' = u.principal_id, 'SID' = u.sid, 'HasDbAccess' = case when p.state in ('G','W') then 1 else 0 end  
            from sys.database_principals u  
            left join sys.database_permissions p on p.class = 0 and p.major_id = 0 and p.minor_id = 0  
                and p.grantee_principal_id = u.principal_id AND p.grantor_principal_id = 1 AND p.type = 'CO'  
            where u.name = @ntname and u.type = 'G'  
    end  
    else  
    begin  
        --  RESULT SET FOR ALL GROUPS  
        select 'NTGroupName' = u.name, 'NtGroupId' = u.principal_id, 'SID' = u.sid, 'HasDbAccess' = case when p.state in ('G','W') then 1 else 0 end  
            from sys.database_principals u  
            left join sys.database_permissions p on p.class = 0 and p.major_id = 0 and p.minor_id = 0  
                and p.grantee_principal_id = u.principal_id AND p.grantor_principal_id = 1 AND p.type = 'CO'  
            where u.type = 'G'  
    end  
  
    return (0) --  sp_helpntgroup