Question

Is there an convenient way to log access to stored procedures from withing Oracle? I am a web developer and presently we are required to pass a variety of user info to many stored procedures so that those procedures can in turn call another procedure that logs access to the original stored procedure in a table.

For example if I want to call a procedure called get_movie(id) that will return a row from the movie table based on id, I would have to do something like this get_movie(username, domain, ip, id) so that the procedure can log the user/domain/ip of the web user who initiated the call to the procedure.

It seems like there must be a better way but my knowledge of Oracle is limited.

Answer 1

I would set the common parameters using a procedure and sys_context every time you get your connection

e.g:

CREATE OR REPLACE PROCEDURE set_context
(
    v_userid IN VARCHAR2,
    v_domain IN VARCHAR2,
    v_ip IN VARCHAR2,
    v_id IN VARCHAR2
)
AS
BEGIN 
    DBMS_SESSION.SET_CONTEXT('SESSIONCONTEXT', 'username', v_userid); 
    DBMS_SESSION.SET_CONTEXT('SESSIONCONTEXT', 'domain', v_domain); 
    DBMS_SESSION.SET_CONTEXT('SESSIONCONTEXT', 'ip', v_ip); 
    DBMS_SESSION.SET_CONTEXT('SESSIONCONTEXT', 'id', v_id); 
END;

and to query the values:

SELECT SYS_CONTEXT('SESSIONCONTEXT', 'username') FROM dual; 

see: http://download.oracle.com/docs/cd/E14072_01/server.112/e10592/functions182.htm
and

Is there a way to communicate application context to a DB connection in non-Sybase DB servers (similar to set_appcontext in Sybase)?