Question

I have a logging function in T-SQl similiar to this:

CREATE PROCEDURE [logging]    
@PROCEDURE VARCHAR(50),
@MESSAGE VARCHAR(MAX)
AS
BEGIN
    PRINT @MESSAGE

END;
GO

I am able to call it like this:

execute logging N'procedure_i_am_in', N'log_message';

As my stored procedure names are a bit long winded, I want to write an alias or an inline function or so, to call the logging procedure for me, with the current procedure. Something like this (which is broken):

declare @_log varchar(max)
set @_log = 'execute logging N''procedure_i_am_in'', '
execute @_log N'MESSAGE!'

And i would put that alias at the top of each procedure.

What are your thoughts?

Answer 1

Quite simple

CREATE PROCEDURE [logging]    
   @PROCID int,,
   @MESSAGE VARCHAR(MAX)
-- allows resolution of @PROCID in some circumstances
-- eg nested calls, no direct permission on inner proc
WITH EXECUTE AS OWNER
AS
BEGIN
    -- you are using schemas, right?
    PRINT OBJECT_SCHEMA_NAME(@PROCID) + '.' + OBJECT_NAME(@PROCID);
    PRINT @MESSAGE
END;
GO

Then

execute logging @@PROCID, N'log_message';

MSDN on OBJECT_SCHEMA_NAME and @@PROCID

Edit:

Beware of logging into tables during transactions. On rollback, you’ll lose the log data