DBMS_SCHEDULER VS DBMS_JOBS

Could you tell me anyone and help me
DBMS_SCHEDULER VS DBMS_JOBS
--I WANT PERFORMANCE WISE DIFFERENT ONLY
Regards,
Annappan A

I WANT PERFORMANCE WISE DIFFERENT ONLYWhat do you mean by performance difference?
[Why use DBMS_SCHEDULER rather than DBMS_JOB|http://forums.oracle.com/forums/thread.jspa?threadID=669609]
*[Oracle DBMS_JOB|http://www.morganslibrary.org/reference/dbms_job.html]*
VS
*[Oracle DBMS_SCHEDULER|http://www.morganslibrary.org/reference/dbms_scheduler.html]*
HTH
Anantha

Similar Messages

CAN WE RUN DBMS_JOB WITHIN DBMS_JOB ORACLE

hi Kamal
i have situation like this ---
Main JOB
calling proc1
Calling JOB 2
sample code
DECLARE
X NUMBER;
BEGIN
SYS.DBMS_OUTPUT.PUT_LINE('Job Number is1: ' || to_char(x));
SYS.DBMS_JOB.SUBMIT
( job => X
,what => 'COM_BATCH_PROCESS_PRC1;'
,next_date => to_date(sysdate,'dd/mm/yyyy hh24:mi:ss')
,interval => null
,no_parse => TRUE
COMMIT;
SYS.DBMS_OUTPUT.PUT_LINE('Job Number is: ' || to_char(x));
DBMS_JOB.RUN(X);
END;
i m calling above code within proc1 for job2
i m getting error at line dbms_run(x)
is it really need to run that job or will get automatically run
i have some dbms_output statements within it(COM_BATCH_PROCESS_PRC1;) then can i see that output statremts when i m exec main job 1

What version are you using??
If 10g try using DBMS_SCHEDULER instead DBMS_JOB
Regards,
Paulo.

How to fill data in a table automatically

Hello Experts,
I would like to know if its possible to fill data in a table by looping.
I have the following table:
Draws(
NUM NUMBER,
START_DATE DATE NOT NULL,
END_DATE DATE NOT NULL,
ACTIVE CHAR(1 BYTE) DEFAULT 'Y')
Now my table should contain the foll:
Num start_date end_date active
1 23/01/2010 21:00:00 30/01/2010 19:00:00 Y
2 30/01/2010 21:00:00 06/02/2010 19:00:00 Y
I have an initial start date and the end_date is always (start_date + 7) and the next start date starts with the previous end_date but time changes from 19:00 to 21:00.
Is there a way i can enter those values on a weekly basis???
Thanks
Edited by: Kevin CK on Jul 5, 2010 3:07 AM

there are a number of ways to do weekly inserts. it just depends on your environment and what you want to manage.
1. write a PL/SQL procedure to do the periodic insert. i assume you know how to do this since you only asked about doing the insert weekly.
2. options for running the procedure weekly:
a. using your OS job scheduler, schedule a batch job to run a sql script to execute the procedure.
b. inside the Oracle database, use DBMS_SCHEDULER (or DBMS_JOB if you are on a version older than 10g) to run the procedure.
c. write yourself a reminder on a sticky note to run the procedure each week, post it on your computer, and run it manually.
if you need more details, just say so.

How to avoid a timeout for a long-running query

Hello,
in my application I insert some rows in a temporary table on submit in a PL/SQL block on the page 1. Then I read these rows from the table on the page 2. Unfortunately the insert takes too long time, because I also have to make some other SELECTs etc in that block. That's why the application hits the Apache timeout for mod_plsql and HTTP error between pages 1 and 2.
I have found some threads about this topic in this forum. There are some suggestions with meta refresh tag etc. I understand, that I have to implement some kind of processing page between the pages 1 and 2 to show a waiting message etc. But I could not find any ready "cook book" for such implementation.
Could you please help me?
Thanks in advance
Andrej
P.S. This application don't use AJAX code, so I would prefer a solution without AJAX.

Hello Chris,
I am not sure, how to implement this approach. So I would start on the page 1 a job (dbms_scheduler or dbms_job), which would create a temporary table in the background. The application should branch to the page 3 with a message "Please wait...". I have to poll the results of the job and branch to the page 2, when the job is ready and I can select from the created temporary table. So far I like this way very much.
Could you please give me more details about the page 3 (polling page)? I have the following questions now:
1. I assume I have to set the meta refresh tag on this page. But in which PL/SQL block can I poll for the running job (on load process?).
2. How can I branch from this page to another page? If I only use refresh tag, how can I branch to another page only on the special condition (ready flag)?
Thanks in advance
Andrej

Executing Procedure through job

Hi All,
I have created three procedures.
1. IT_DEFAULTER_REP - counts number of entries in a table and if it is 0 then send mail.
2. PUSH_IT_DEFAULTER_REP - it execute IT_DEFAULTER_REP every 1 min which generates mail
3. PUSH_MAIL_QUEUE - it executes apex_mail.push_queue to push all mails in queue
If I directly run IT_DEFAULTER_REP like
BEGIN
IT_DEFAULTER_REP;
END;
It generates mail and PUSH_MAIL_QUEUE pushes the mail.
but what I want is: PUSH_IT_DEFAULTER_REP runs automatically besides me executing it.
Here is code:
create or replace PROCEDURE IT_DEFAULTER_REP
IS
v_count number;
BEGIN
FOR c1 in
(Select person_id,person_name,username,person_email
from it_people
where assigned_project =
(select project_id
from it_projects
where project_name = 'Infra'))
LOOP
SELECT count(*)
into v_count
from it_issues_progress
where upper(modified_by) = upper(c1.username)
and to_char(trunc(modified_on),'dd-mon-yy') = to_char((sysdate-1),'dd-mon-yy') ;
if c1.person_email is not null and v_count = 0 then
APEX_MAIL.SEND(
p_to => c1.person_email,
p_from => c1.person_email,
p_body => 'TESTING DEFAULTER LIST REPORT',
p_subj => 'TESTING DEFAULTER LIST REPORT');
END IF;
END LOOP;
END;
create or replace procedure push_it_defaulter_rep as
jobno number;
BEGIN
DBMS_JOB.SUBMIT(
job => jobno,
what => 'begin it_defaulter_rep; end;',
next_date => to_date(SYSDATE,'dd-mon-yy'),
interval => to_date(sysdate + 5/1440,'dd-mon-yy'));
COMMIT;
END;
create or replace procedure push_mail_queue as
jobno number;
BEGIN
DBMS_JOB.SUBMIT(
job => jobno,
what => 'begin apex_mail.push_queue; end;',
next_date => to_date(SYSDATE,'dd-mon-yy'),
interval => to_date(sysdate + 10/1440,'dd-mon-yy'));
COMMIT;
END;
OMY

omy_oracle wrote:
Hi All,
I have created three procedures.
1. IT_DEFAULTER_REP - counts number of entries in a table and if it is 0 then send mail.
2. PUSH_IT_DEFAULTER_REP - it execute IT_DEFAULTER_REP every 1 min which generates mail
3. PUSH_MAIL_QUEUE - it executes apex_mail.push_queue to push all mails in queue
If I directly run IT_DEFAULTER_REP like
BEGIN
IT_DEFAULTER_REP;
END;
It generates mail and PUSH_MAIL_QUEUE pushes the mail.
but what I want is: PUSH_IT_DEFAULTER_REP runs automatically besides me executing it.Hi Omy,
I am not too sure of your actual question. Is the job you set up not periodically running that procedure - IT_DEFAULTER_REP?
By the way, I recommend using dbms_scheduler over dbms_job - http://download.oracle.com/docs/cd/B19306_01/server.102/b14231/jobtosched.htm
Also, you should try and wrap your code in tags where possible.
Ta,<br />Trent

Scheduling a program

Is it possible to schedule a plsql program (like CRON JOB) in APEX
Regards
Balaji S

APEX has own utility APEX_PLSQL_JOB. You can use it to run some plsql code in schedule, on the other site you can use regular Oracle functionality DBMS_SCHEDULER or DBMS_JOB.
Remember, if you use APEX on Windows OS you have to start manualy OracleJobSchedulerSID service without it you can't use any Oracle schedule/job.

Automated work on table existance

Hello,
Oracle9i Enterprise Edition Release 9.2.0.1.0 – Production
Windows XP Service Professional Service Pack 1
Is there any way by which we can perform a certain task/job on the event of existence of specific table (whether by create table or sqlldr)? I mean for example there is a table; name spltable. I wish to perform some specific tasks (updating other tables, views, running function, procedure, scripts etc.) automatically. Whenever there is a table name spltable the above mentioned taks(s) would automatically performed with error report in data or in the whole specified operation; as there is an event of existance of spltable.
Please reply with little demo example (probably this can be achieve by DBMS_SCHEDULER OR DBMS_JOBS, but an example based upon above scenario); so that I may learn the complete aspect.
Thanks & Kind Regards
Girish Sharma

Sir, probably little error it is returning error:
create or replace trigger schema_trigger
after create on schema
declare
j number;
begin
W( 'Event:'||ora_sysevent ||' Owner:'|| ora_dict_obj_owner ||' Table:'|| ora_dict_obj_name );
if ora_sysevent = 'CREATE' and ora_dict_obj_owner = 'JJ' and ora_dict_obj_name = 'LOAD_TABLE' then
-- submit job to start the processing of the load table
DBMS_JOB.Submit( j, 'insert into load_table select level from dual connect by level < 11;commit;', SYSDATE+((2/60)/24)); -- i just added that required task should be started after 2 min of creation of load_table.
W( 'Created job '||j||' for processing the table' );
end if;
end;
Warning: Trigger created with compilation errors.
SQL> SHOW ERROR
Errors for TRIGGER SCHEMA_TRIGGER:
LINE/COL ERROR
4/11 PLS-00201: identifier 'W' must be declared
4/11 PL/SQL: Statement ignored
8/19 PLS-00201: identifier 'W' must be declared
8/19 PL/SQL: Statement ignored
Then I removed following 2 lines from create triger command:
W( 'Event:'||ora_sysevent ||' Owner:'|| ora_dict_obj_owner ||' Table:'|| ora_dict_obj_name );
W( 'Created job '||j||' for processing the table' );
So trigger created.
SQL> create table load_table( x number );
create table load_table( x number )
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-06550: line 1, column 105:
PL/SQL: ORA-00600: internal error code, arguments: [12830], [JJ], [LOAD_TABLE],
ORA-06550: line 1, column 93:
PL/SQL: SQL Statement ignored
ORA-06512: at "SYS.DBMS_JOB", line 79
ORA-06512: at "SYS.DBMS_JOB", line 136
ORA-06512: at line 6
The same error is still coming after GRANT EXECUTE ON "SYS"."DBMS_JOB" TO "JJ"; issued.
Please guide me what i am missing here.
Kind Regards
Girish Sharma

Can a execute the job in parallel.?

Please find below my DBMS_SHEDULER job:
BEGIN
DBMS_SCHEDULER.CREATE_JOB
(job_name => 'job1',
job_type => 'PLSQL_BLOCK',
job_action => 'BEGIN pk_dt_auto.pr_fire_process(''764''); END;'
start_date => SYSDATE,
repeat_interval =>'FREQ = Minutely; INTERVAL = 'SYSDATE+ 30/86400'
END;
Can i run the job twice in parallel?..

Hi,
For dbms_scheduler (and dbms_job) once a job is running it will NOT be started again until after it has finished. The scheduler ensures that only one instance of a job is running at a given time.
There is a way around this however. In your job, instead of doing the manipulations, create a simple one-time job with a unique name (dbms_scheduler.generate_job_name) that does the manipulations. Since creating a job is fairly quick the main job will finish quickly and be rescheduled for after the interval but the one-time job will continue doing the work in the background .
Hope this helps,
Ravi.

Run a package every few hours

Hi, I have create a package which runs a few pl/sql and then email me the results but what I am trying to do next is set this package to run everyday at 3pm and then email me the result as it normally does now.
My question is how will I go about doing this? please show an example code. My package name is daily_error_check.

Use DBMS_SCHEDULER (or DBMS_JOB):
ORACLE-BASE - Scheduler (DBMS_SCHEDULER) in Oracle Database 10g

Call procedure2 from procedure1 "in background"

Hi all,
my need is to call procedure2 from procedure1 "in background". What I mean... Let's say, procedure2 works about 10 seconds. So, procedure1 should call procedure2 and go on working without waiting for procedure2 to end its work.
How do I perform it? Is it possible at all? My thought was to use pragma autonomous transaction, am I right?

marco wrote:
Hi all,
my need is to call procedure2 from procedure1 "in background". What I mean... Let's say, procedure2 works about 10 seconds. So, procedure1 should call procedure2 and go on working without waiting for procedure2 to end its work.
How do I perform it? Is it possible at all? My thought was to use pragma autonomous transaction, am I right?No. Pragma Autonomous Transaction sets up a seperate transaction for the code in that procedure, though it will still have to complete that procedure before control is returned to the calling code.
To call procedure2 from procedure1 but not have to wait for procedure 2 to finish, you would use DBMS_SCHEDULER (or DBMS_JOB if you don't want any current transaction committed), to schedule the procedure to be run immediately. This causes the scheduled task to run in it's own right without being a part of the current session.
http://docs.oracle.com/cd/E11882_01/appdev.112/e25788/d_sched.htm#ARPLS72260

Remote Execute

Hi,
I need to execute a command in a unix and to capture its results.
It would like to catch these data and put them in a region of a screen of the APEX. This is possible?
Tks
Ricardo

Ricardo,
Please try DBMS_SCHEDULER package, DBMS_Job has been deprecated..
Here is a link for you to review, from the PSOUG ( a VERY good site to get info on Oracle how-to's)
http://www.psoug.org/reference/dbms_job.html
Here's the link for DBMS_Scheduler:
http://www.psoug.org/reference/dbms_scheduler.html
Thank you,
Tony Miller
Webster, TX

Running an automated script at scheduled intervals

Greetings all,
Is there a way to setup a process or job to run an SQL Script automatically on the first of the month? I am running on a server much like apex.oracle.com so I don't have permissions to the back end of the database and can't run a cron job.
What I am trying to do is run a script that updates a table on the 1st and 15th of the month.
I Googled it and searched OTN and was not able to find what I was looking for so asking the experts.
Thanks in advance for any assistance.
Wally

wfsteadman wrote:
I definitely did not good for dbms_scheduler or dbms_job.. so that may be my first issue. will this run from application express? I don't have access to the backend of the database or to a command line so I would have to set it up in the application and not sure how to do that.APEX provides SQL Workshop with the SQL Commands and SQL Scripts processors.
I've just successfully tested basic <tt>dbms_scheduler</tt> functions on apex.oracle.com, so try it on your environment.
<li>Go to SQL Workshop > SQL Commands
<li>Create a basic, run-once job (that actually does nothing):
begin
dbms_scheduler.create_job(
    job_name => 'myjob',
    job_type => 'plsql_block',
    job_action => 'null;',
    enabled => true);
end;If this returns
Statement processed.rather than an error message then you're probably good to go.
<li>Check the execution log:
select * from user_scheduler_job_run_details;Should return something like:
5825946     19-JUL-11 02.53.12.839925 PM -05:00     NANDBTAG     MYJOB         -               SUCCEEDED     0           19-JUL-11 02.53.12.808693 PM AMERICA/CHICAGO     19-JUL-11 02.53.12.817457 PM AMERICA/CHICAGO     +000 00:00:00     1               1171,2895       25087         +000 00:00:00.02     -                     -                   -                     -               -<li>Try creating a job that runs every minute:
begin
dbms_scheduler.create_job(
    job_name => 'myjob',
    job_type => 'plsql_block',
    job_action => 'null;',
    start_date => '19-JUL-11 03.10.00 PM', /* Remember to use the DB time, not your local time if not specifying a timezone */
    repeat_interval => 'freq=minutely',
    enabled => true);
end;<li>Check it's status in the <tt>user_scheduler_jobs</tt> view:
select * from user_scheduler_jobs;
MYJOB      -     REGULAR     APEX_PUBLIC_USER     MACMILP:1275550617277611      -      -      -     PLSQL_BLOCK     null;     0      -      -     CALENDAR     19-JUL-11 03.10.00.000000 PM -05:00     freq=minutely      -      -      -      -      -      -      -      -     DEFAULT_JOB_CLASS     TRUE     TRUE     FALSE     SCHEDULED     3     0      -     0      -     0      -      -     19-JUL-11 03.10.00.000000 PM -05:00      -      -     OFF     FALSE     TRUE      -     FALSE     1     NLS_LANGUAGE='AMERICAN' NLS_TERRITORY='AMERICA' NLS_CURRENCY='$' NLS_ISO_CURRENCY='AMERICA' NLS_NUMERIC_CHARACTERS='.,' NLS_CALENDAR='GREGORIAN' NLS_DATE_FORMAT='mm/dd/yyyy' NLS_DATE_LANGUAGE='AMERICAN' NLS_SORT='BINARY' NLS_TIME_FORMAT='HH.MI.SSXFF AM' NLS_TIMESTAMP_FORMAT='DD-MON-RR HH.MI.SSXFF AM' NLS_TIME_TZ_FORMAT='HH.MI.SSXFF AM TZR' NLS_TIMESTAMP_TZ_FORMAT='DD-MON-RR HH.MI.SSXFF AM TZR' NLS_DUAL_CURRENCY='$' NLS_COMP='BINARY' NLS_LENGTH_SEMANTICS='BYTE' NLS_NCHAR_CONV_EXCP='FALSE'      -     1      -      -      -      -      -     FALSE     FALSE      -     133168<li>And that it's executing every minute:
select * from user_scheduler_job_log;
5826446     19-JUL-11 03.13.00.264038 PM -05:00     NANDBTAG     MYJOB      -     DEFAULT_JOB_CLASS     RUN     SUCCEEDED      -      -      -      -      -      -      -      -
5826426     19-JUL-11 03.12.00.191519 PM -05:00     NANDBTAG     MYJOB      -     DEFAULT_JOB_CLASS     RUN     SUCCEEDED      -      -      -      -      -      -      -      -
5826386     19-JUL-11 03.11.00.075835 PM -05:00     NANDBTAG     MYJOB      -     DEFAULT_JOB_CLASS     RUN     SUCCEEDED      -      -      -      -      -      -      -      -
5826366     19-JUL-11 03.10.00.048849 PM -05:00     NANDBTAG     MYJOB      -     DEFAULT_JOB_CLASS     RUN     SUCCEEDED      -      -      -      -      -      -      -      -After that you want to experiment with the calendar syntax to figure out how to run a job on the first of the month, and plug in your own PL/SQL block or stored procedure <tt>job_action</tt> that actually does something.
And if that first call errors out and you don't get anywhere near this far, you'll have to contact the host DBAs an enquire about getting CREATE JOB privilege granted to the required parsing schema in your workspace.
(If it does work, remember to drop any experimental jobs when you're done to free up resources for everyone else!)

Creating and executing a job inside oracle

I must launch a batch inside oracle, i have defined program and job like this
begin
dbms_scheduler.create_program
program_name => 'PGM2',
program_type => 'EXECUTABLE',
program_action => 'C:\GLOBE\CPONYIN.BAT',
enabled => TRUE,
comments => 'CREA FILE UTENTE IN INPUT PER ONYX'
end;
begin
dbms_scheduler.create_job
job_name => 'JOB2',
program_name => 'PGM2',
comments => 'Move FILE ONYX IN INPUT',
enabled => TRUE
end;
Are they correct ?
what can I do for launching the job JOB2?
I have tried :
BEGIN
DBMS_JOB.RUN( job => JOB2);
END
But oracle answers : PLS-00201 Identifier JOB2 must be declared
Thanks for your answers

Hi,
dbms_scheduler and dbms_job are two different package and create different types of jobs. In 10gR1 and up you shoulod not have to use dbms_job at all since dbms_scheduler is its replacement.
To run a dbms_scheduler job immediately you can use dbms_scheduler.run_job which is documented in the PL/SQL packages guide under dbms_scheduler .
Hope this helps,
Ravi.
PS you will run into other issues with your example. A bat file cannot be run directly. You must do e.g.
c:\win32\cmd.exe /q /c C:\GLOBE\CPONYIN.BAT
which is done by setting number_of_arguments to 3 in create_program
and after doing create_job (enabled=>false), you will have to call set_job_argument_value 3 times with '/q', '/c' and 'C:\GLOBE\CPONYIN.BAT' and then call dbms_scheduler.enable to enable the job .

Identify session number for background job

Hi,
We have AQ and couple of jobs inside the db that does the processing for us.
Once while we get to a stage where they seem to lock each other and don’t do much work. I’m thinking maybe I should start tkprof for some of those session as starting point.
How can I identify session relevant to those jobs?
V11.2 we also suing virtual private database.
Thanks

user9198889, to tie a foreground process to an Oracle session background process the following article may be of interest along with another article on how to trace an already running process:
Is there a way to trace a UNIX process id to a SID and SERIAL# ?
http://www.jlcomp.demon.co.uk/faq/sid_from_proc.html
How do I switch on sql trace in another session that is already running?
http://www.jlcomp.demon.co.uk/faq/alien_trace.html
Now when your session executes a dbms_scheduler or dbms_jobs call you add another independent session to the process. Depending on your Oracle version you need to add more views to you process for hunting down what is wrong but if you have lock waits you should be able to find waiting and blocking sessions using v$session, v$lock, and other lock associated views like dba_blockers, dba_waiters, etc ....
HTH -- Mark D Powell --

Monitoring other transactions

Hi,
Just want to ask any work-around for this scenario. They have a proC programs being called from shell scripts thru cron, this proC scripts just loads/updates tables. Now they want to have like a log table to query if that proC code is already done modifying a table, problem is they can't touch the proC code. I have this initial code, but as I do it, I think it won't work completely like updating the status of the table to be last modified. Is there any other oracle technology I could use on this? Thanks.
drop table sys_log;
create table sys_log
( table_name varchar2(50) constraint tn_pk primary key,
status       varchar2(10),
start_time date,
end_time    date,
current_table    varchar2(1) default 'N'
create or replace package pkg_sys_log as
     procedure set_status( p_table_name sys_log.table_name%type );
end;
create or replace package body pkg_sys_log as
     procedure set_status( p_table_name sys_log.table_name%type ) is
                pragma autonomous_transaction;
                cursor c_sys_log( p_table sys_log.table_name%type ) is
                select table_name, current_table
                from sys_log
                where table_name = p_table;
                r_sys_log c_sys_log%rowtype;
        l_current_table sys_log.current_table%type;
     begin
          open c_sys_log( p_table_name );
          fetch c_sys_log into r_sys_log;
          if c_sys_log%found then
       begin
           select table_name
           into l_current_table
           from sys_log
           where current_table = 'Y';
       exception
           when no_data_found then
              l_current_table := null;
       end;
       if l_current_table is not null and
          r_sys_log.table_name != l_current_table then
          update sys_log
          set current_table = 'N',
              status = 'FINISHED'
              end_time = sysdate
          where table_name = l_current_table;
          update sys_log
          set current_table = 'Y'
          where table_name = r_sys_log.table_name;
       end if;
          else
                       insert into sys_log( table_name, status, start_time, current_table )
                       values ( p_table_name, 'ON-GOING', sysdate, 'Y' );
          end if;
          close c_sys_log;
          commit;
     exception
          when others then
               rollback;
               raise;
     end;
end;
drop table test;
create table test
as
select * from all_objects
where 1=2;
create or replace trigger bi_test_trg
before insert or update or delete on test
begin
     pkg_sys_log.set_status( 'TEST' );
end;
/

I see nothing what you've written that would make me think (a) I have any idea what version you are asking about or that (b) there is any reason to use Pro*C or that (c) there is any reason to use cron.
Move the code into the database using DBMS_SCHEDULER or DBMS_JOB and everything is handled with far more efficiency and only a single, simple, API and language.

DBMS_SCHEDULER VS DBMS_JOBS

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