sp_MSGetCurrentPrincipal (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_MSGetCurrentPrincipal(nvarchar @db_name)

MetaData:

 create procedure sys.sp_MSGetCurrentPrincipal  
@db_name sysname  
,@current_principal sysname output  
as   
begin  
select @current_principal = sys.fn_GetCurrentPrincipal (@db_name)  
end