Re: Question for Java developers on Hibernate
- From: David Fitzjarrell <oratune@xxxxxxxxx>
- To: "William.Blanchard@xxxxxxxxxxxxx" <William.Blanchard@xxxxxxxxxxxxx>, "cicciuxdba@xxxxxxxxx" <cicciuxdba@xxxxxxxxx>, oracle-l-freelists <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 28 Jul 2011 10:32:53 -0700 (PDT)
I use this in a dev environment to catch errors and sql text:
CREATE TABLE stats$error_log (
err_dt TIMESTAMP,
db_user VARCHAR2(30),
msg_stack VARCHAR2(2000),
sqltxt VARCHAR2(1000))
tablespace users;
CREATE OR REPLACE TRIGGER log_server_errors
AFTER SERVERERROR
ON DATABASE
DECLARE
v_sqltext VARCHAR2(1000);
nl_sqltext ora_name_list_t;
BEGIN
-- Capture entire error text
FOR i IN 1 .. ora_sql_txt(nl_sqltext) LOOP
v_sqltext := v_sqltext || nl_sqltext(i);
END LOOP;
INSERT INTO STATS$ERROR_LOG
(err_dt, db_user, msg_stack, sqltxt)
VALUES
(systimestamp,
sys.login_user,
dbms_utility.format_error_stack, v_sqltext);
END log_server_errors;
/
You can change the tablespace to one that's convenient to use (in our
environment USERS is there but unused).
David Fitzjarrell
From: "Blanchard, William G" <William.Blanchard@xxxxxxxxxxxxx>
To: cicciuxdba@xxxxxxxxx; oracle-l-freelists <oracle-l@xxxxxxxxxxxxx>
Sent: Thursday, July 28, 2011 9:00 AM
Subject: RE: Question for Java developers on Hibernate
This has everything to do with lazy or incompetent developers and nothing to do
with Java or Hibernate. You can log the sql statements using log4j or via a
configuration property.
WGB
From:oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Guillermo Alan Bort
Sent: Thursday, July 28, 2011 9:47 AM
To: oracle-l-freelists
Subject: Question for Java developers on Hibernate
So... I'm very annoyed today with one of out beloved developers...
Due to some "security" measures (in fact it was a political issue) we had to do
a database refresh and upgrade all in one step using expdp. It's not all that
bad, but the dev team that is supposed to use the new database is having a lot
of trouble with the new DB (everything from synonyms to grants had to be
reviewed, thank god for TOAD's "compare database" feature).
The problem is that the database was refreshed from the production DB and the
old dev DB had a few modifications, so basically now they are having trouble
with the dev version of the app (missing columns/tables?).
The app is a java monster that uses hibernate to connect to Oracle (did I ever
mention my aversion to frameworks?) and when I asked exactly WHAT table was
missing the dev team didn't seem to have an answer, all they are getting is
ORA-942... so I asked for the SQL Query and the reply was that they are using
hibernate and that it doesn't allow them to see the queries.
I honestly know very little about java and even less about hibernate, but there
must be a way to see this (other that tracing the session)... so my question to
those of you who know hibernate or work with hibernate is how do you see what
query the framework is executing?
and if hibernate doesn't actually have a way to easily log what its doing...
well I'm amazed that anyone would choose it for production use.
thanks :-)
Alan.-
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