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Please tell me use of DBMS_SCHEDULER [message #624460] Tue, 23 September 2014 01:33 Go to next message
aaditya321
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Hi Guys,

I have study more about DBMS_SCHEDULER but still could not get what is use of DBMS_SCHEDULER, suppose I have a procedure then how will use DBMS_SCHEDULER. Now I am using oracle 10g.

CREATE TABLE EMP (EMPNO NUMBER(4) NOT NULL,
                  ENAME VARCHAR2(10),
                  JOB VARCHAR2(9),
                  SAL NUMBER(7, 2),
                  DEPTNO NUMBER(2));

INSERT INTO EMP VALUES (1, 'SMITH', 'CLERK',     900,    10);
INSERT INTO EMP VALUES (2, 'ALLEN', 'SALESMAN', 1800,    20);
INSERT INTO EMP VALUES (3, 'WARD',  'SALESMAN', 1450,    20);
INSERT INTO EMP VALUES (4, 'JONES', 'MANAGER',  3975,    30);

SQL> CREATE PROCEDURE update_salary(p_id IN emp.empno%TYPE,p_factor IN NUMBER) AS
  2     v_count INTEGER;
  3  BEGIN
  4     SELECT COUNT(*) INTO v_count FROM emp WHERE empno = p_id;
  5
  6     IF v_count = 1 THEN
  7        UPDATE emp SET sal = sal * p_factor WHERE empno = p_id;
  8        COMMIT;
  9     END IF;
 10  EXCEPTION
 11  WHEN OTHERS THEN
 12   ROLLBACK;
 13  END update_salary;
 14  /

Procedure created.

SQL>

Re: Please tell me use of DBMS_SCHEDULER [message #624461 is a reply to message #624460] Tue, 23 September 2014 01:35 Go to previous messageGo to next message
Michel Cadot
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Why don't you read the documentation?

Re: Please tell me use of DBMS_SCHEDULER [message #624462 is a reply to message #624460] Tue, 23 September 2014 01:36 Go to previous messageGo to next message
Michel Cadot
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In addition, your procedure is really an example of very bad programming.
I think you made all the possible errors.

Re: Please tell me use of DBMS_SCHEDULER [message #624468 is a reply to message #624461] Tue, 23 September 2014 02:04 Go to previous messageGo to next message
aaditya321
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Hello Sir,

I have study more from documentation but unable to understand it, please give any simple procedure and tell me how to use DBMS_SCHEDULER in any procedure.
Michel Cadot wrote on Tue, 23 September 2014 01:35

Why don't you read the documentation?


Re: Please tell me use of DBMS_SCHEDULER [message #624469 is a reply to message #624468] Tue, 23 September 2014 02:14 Go to previous messageGo to next message
John Watson
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aaditya321 wrote on Tue, 23 September 2014 08:04
Hello Sir,

I have study more from documentation but unable to understand it, please give any simple procedure and tell me how to use DBMS_SCHEDULER in any procedure.
<snip>
You don't (generally) use the Scheduler IN a procedure, you use it to CALL a procedure. There are many simple examples in the Administrator's Guide, have you tried any yet?
Re: Please tell me use of DBMS_SCHEDULER [message #624474 is a reply to message #624469] Tue, 23 September 2014 02:37 Go to previous messageGo to next message
aaditya321
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Hi John,
Please share any simple example link so that I can learn it easily.
Re: Please tell me use of DBMS_SCHEDULER [message #624478 is a reply to message #624474] Tue, 23 September 2014 02:48 Go to previous messageGo to next message
Michel Cadot
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Here

Re: Please tell me use of DBMS_SCHEDULER [message #624479 is a reply to message #624474] Tue, 23 September 2014 02:50 Go to previous messageGo to next message
Michel Cadot
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And here

Re: Please tell me use of DBMS_SCHEDULER [message #624499 is a reply to message #624479] Tue, 23 September 2014 04:52 Go to previous messageGo to next message
aaditya321
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I could not understand clear from your given link, please give example here.
Re: Please tell me use of DBMS_SCHEDULER [message #624501 is a reply to message #624499] Tue, 23 September 2014 04:54 Go to previous messageGo to next message
John Watson
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What didn't you understand? Can you show the example you followed and say what the problem was?
Re: Please tell me use of DBMS_SCHEDULER [message #624505 is a reply to message #624501] Tue, 23 September 2014 05:27 Go to previous messageGo to next message
aaditya321
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Suppose I have created a program like
BEGIN
   DBMS_SCHEDULER.create_program (
    program_name   => 'test_plsql_block_prog',
    program_type   => 'PLSQL_BLOCK',
    program_action => 'BEGIN DBMS_STATS.gather_schema_stats(''HR''); END;',
    enabled        => TRUE,
    comments       => 'Program to gather HR''s statistics using a PL/SQL block.');
END;
/

My Procedure is like:

CREATE TABLE EMP (EMPNO NUMBER(4) NOT NULL,
                  ENAME VARCHAR2(10),
                  JOB VARCHAR2(9),
                  SAL NUMBER(7, 2),
                  DEPTNO NUMBER(2));

INSERT INTO EMP VALUES (1, 'SMITH', 'CLERK',     900,    10);
INSERT INTO EMP VALUES (2, 'ALLEN', 'SALESMAN', 1800,    20);
INSERT INTO EMP VALUES (3, 'WARD',  'SALESMAN', 1450,    20);
INSERT INTO EMP VALUES (4, 'JONES', 'MANAGER',  3975,    30);

SQL> CREATE PROCEDURE update_salary(p_id IN emp.empno%TYPE,p_factor IN NUMBER) AS
  2     v_count INTEGER;
  3  BEGIN
  4     SELECT COUNT(*) INTO v_count FROM emp WHERE empno = p_id;
  5
  6     IF v_count = 1 THEN
  7        UPDATE emp SET sal = sal * p_factor WHERE empno = p_id;
  8        COMMIT;
  9     END IF;
 10  EXCEPTION
 11  WHEN OTHERS THEN
 12   ROLLBACK;
 13  END update_salary;
 14  /

Procedure created.

SQL>


Then how will use DBMS_SCHEDULER here.
Re: Please tell me use of DBMS_SCHEDULER [message #624506 is a reply to message #624505] Tue, 23 September 2014 05:30 Go to previous messageGo to next message
John Watson
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You use the job scheduler to schedule jobs. What job do you want to schedule?
Re: Please tell me use of DBMS_SCHEDULER [message #624507 is a reply to message #624505] Tue, 23 September 2014 05:32 Go to previous messageGo to next message
Michel Cadot
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And try to fix your procedure code to get a correct one.

Re: Please tell me use of DBMS_SCHEDULER [message #624510 is a reply to message #624506] Tue, 23 September 2014 05:40 Go to previous messageGo to next message
aaditya321
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John Watson wrote on Tue, 23 September 2014 05:30
You use the job scheduler to schedule jobs. What job do you want to schedule?


Please explain it with example how to do.
Re: Please tell me use of DBMS_SCHEDULER [message #624511 is a reply to message #624510] Tue, 23 September 2014 05:41 Go to previous messageGo to next message
John Watson
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I think you are trolling. No-one can be this dumb.
Goodbye.
Re: Please tell me use of DBMS_SCHEDULER [message #624514 is a reply to message #624511] Tue, 23 September 2014 05:46 Go to previous messageGo to next message
aaditya321
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John Watson wrote on Tue, 23 September 2014 05:41
I think you are trolling. No-one can be this dumb.
Goodbye.

Really I am not trolling, but I am avid to learn it, please once explain it with example rather sharing any link.
Re: Please tell me use of DBMS_SCHEDULER [message #624516 is a reply to message #624511] Tue, 23 September 2014 05:48 Go to previous messageGo to next message
Michel Cadot
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John Watson wrote on Tue, 23 September 2014 12:41
I think you are trolling. No-one can be this dumb.
Goodbye.


Not the first time this is said about him.
I start to wonder if he is not our good old Balaji/Ajit/Jack/Mohan/Mathew/Suhas/Srini/william/Srikanth/david/Srijesh/kadhirvel/Shiva

Re: Please tell me use of DBMS_SCHEDULER [message #624517 is a reply to message #624514] Tue, 23 September 2014 05:58 Go to previous messageGo to next message
John Watson
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aaditya321 wrote on Tue, 23 September 2014 11:46
John Watson wrote on Tue, 23 September 2014 05:41
I think you are trolling. No-one can be this dumb.
Goodbye.

Really I am not trolling, but I am avid to learn it, please once explain it with example rather sharing any link.
Well, MC reckons the problem may be brains, not trolling. OK. Here are two examples you can work on:

We need to define a job that is launched by a schedule. It should run every ten minutes, sending a mail to OP reminding him to switch on his brain.
Then we need a job that is launched by an event. Whenever OP makes a post, it should search the doc index and return a list of references to him.



Re: Please tell me use of DBMS_SCHEDULER [message #624523 is a reply to message #624517] Tue, 23 September 2014 06:41 Go to previous messageGo to next message
aaditya321
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Please give any example Sir. I will learn fast from example.

[Updated on: Tue, 23 September 2014 06:42]

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Re: Please tell me use of DBMS_SCHEDULER [message #624524 is a reply to message #624523] Tue, 23 September 2014 06:42 Go to previous messageGo to next message
John Watson
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No, it is hopeless. I give two examples, and what do I get back? A request for an example.

Goodbye. And this time I shall set the IGNORE flag.
Re: Please tell me use of DBMS_SCHEDULER [message #624526 is a reply to message #624524] Tue, 23 September 2014 06:46 Go to previous messageGo to next message
aaditya321
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John Watson wrote on Tue, 23 September 2014 06:42
No, it is hopeless. I give two examples, and what do I get back? A request for an example.

Where is your example Sir such as I need for learning.
Re: Please tell me use of DBMS_SCHEDULER [message #624527 is a reply to message #624526] Tue, 23 September 2014 06:49 Go to previous messageGo to next message
Lalit Kumar B
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For some sanity, either ignore or lock the topic, please. As it is going nowhere.
Re: Please tell me use of DBMS_SCHEDULER [message #624528 is a reply to message #624516] Tue, 23 September 2014 06:49 Go to previous messageGo to next message
aaditya321
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I start to wonder if he is not our good old Balaji/Ajit/Jack/Mohan/Mathew/Suhas/Srini/william/Srikanth/david/Srijesh/kadhirvel/Shiva


I could not understand what you want to say here.

[Updated on: Tue, 23 September 2014 06:50]

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Re: Please tell me use of DBMS_SCHEDULER [message #624530 is a reply to message #624527] Tue, 23 September 2014 07:00 Go to previous messageGo to next message
aaditya321
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Lalit Kumar B wrote on Tue, 23 September 2014 06:49
For some sanity, either ignore or lock the topic, please. As it is going nowhere.


What kind of your opinion Lalit, rather than helping you are saying ignore or lock the topic, I am requesting to here from brave soul for resolving my problem.
Re: Please tell me use of DBMS_SCHEDULER [message #624534 is a reply to message #624523] Tue, 23 September 2014 07:27 Go to previous messageGo to next message
Michel Cadot
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aaditya321 wrote on Tue, 23 September 2014 13:41
Please give any example Sir. I will learn fast from example.


An example of what?

Re: Please tell me use of DBMS_SCHEDULER [message #624545 is a reply to message #624534] Tue, 23 September 2014 07:59 Go to previous messageGo to next message
aaditya321
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Hi Michel Sir,

Actually I am reading self and no one guiding me excluding forum expert, so please help me. you have given thousand times very hard question's answers to many peoples, so now I hope sure you will help us in my problems.

[Updated on: Tue, 23 September 2014 08:00]

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Re: Please tell me use of DBMS_SCHEDULER [message #624547 is a reply to message #624545] Tue, 23 September 2014 08:03 Go to previous messageGo to next message
Michel Cadot
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But I don't understand what is your problem.

Re: Please tell me use of DBMS_SCHEDULER [message #624558 is a reply to message #624547] Tue, 23 September 2014 08:24 Go to previous messageGo to next message
aaditya321
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My problems is here that I want to use DBMS_SCHEDULER in my procedure, how to execute procedure through DBMS_SCHEDULER.
Re: Please tell me use of DBMS_SCHEDULER [message #624560 is a reply to message #624558] Tue, 23 September 2014 08:31 Go to previous messageGo to next message
BlackSwan
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http://www.oracle.com/pls/db112/search?remark=quick_search&word=DBMS_SCHEDULER&partno=
Re: Please tell me use of DBMS_SCHEDULER [message #624562 is a reply to message #624558] Tue, 23 September 2014 08:34 Go to previous messageGo to next message
Lalit Kumar B
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aaditya321 wrote on Tue, 23 September 2014 18:54
I want to use DBMS_SCHEDULER in my procedure, how to execute procedure through DBMS_SCHEDULER.


You requested my opinion. Ok, so my opinion is that your requirement is absurd and the above quoted sentence of your's is simply contradictory. You said, you want to use the scheduler in your procedure, and you want to execute your procedure through scheduler. Simply, contradictory.
Re: Please tell me use of DBMS_SCHEDULER [message #624567 is a reply to message #624558] Tue, 23 September 2014 08:44 Go to previous messageGo to next message
Michel Cadot
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aaditya321 wrote on Tue, 23 September 2014 15:24
My problems is here that I want to use DBMS_SCHEDULER in my procedure, how to execute procedure through DBMS_SCHEDULER.


You want to use it for what?
Your question is just like I want to use a screwdriver in my house, how can I?

... or is your question that you don't know how to call a procedure in a procedure?

Re: Please tell me use of DBMS_SCHEDULER [message #624638 is a reply to message #624567] Wed, 24 September 2014 07:17 Go to previous messageGo to next message
sss111ind
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--create dummy table
create table emp4 as select * from emp where 1=2;

--create procedure which will be scheduled
create or replace procedure emp_test
is 
begin
--logic what you want to do
insert into emp4 select * from emp;
commit;
end;

BEGIN
 dbms_scheduler.create_program (
    program_name        => 'emp_test_program',
    program_type        => 'STORED_PROCEDURE',--procdure type
    program_action      => 'emp_test',    --procedure name
    enabled             => true,
    comments            => 'Program to insert ');

    DBMS_SCHEDULER.CREATE_SCHEDULE (
    schedule_name   => 'emp_test_schedule',
    start_date      => sysdate,
    repeat_interval => 'freq=minutely; interval=5; bysecond=0;',
    end_date        => null,
    comments        => 'Repeats every 5 minutes');

 dbms_scheduler.create_job (
    job_name      => 'emp_test_job',
    program_name  => 'emp_test_program',
    schedule_name => 'emp_test_schedule',
    enabled       => true,
    comments      => 'Job defined to insert emp4 table');
end;
        
begin
dbms_scheduler.drop_job('emp_test_job');
dbms_scheduler.drop_schedule('emp_test_schedule');
dbms_scheduler.drop_program('emp_test_program');
end;


select * from emp4;

select * from user_scheduler_jobs ;
select * from user_scheduler_job_run_details ;

http://www.oracle-base.com/articles/10g/scheduler-10g.php
http://docs.oracle.com/cd/B28359_01/appdev.111/b28419/d_sched.htm#CIHHBGGI

[Updated on: Wed, 24 September 2014 07:18]

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Re: Please tell me use of DBMS_SCHEDULER [message #624640 is a reply to message #624638] Wed, 24 September 2014 07:23 Go to previous messageGo to next message
Michel Cadot
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Are you sure this is the question?

Re: Please tell me use of DBMS_SCHEDULER [message #624641 is a reply to message #624640] Wed, 24 September 2014 07:29 Go to previous messageGo to next message
sss111ind
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No Sir, I have given just an example referring to message #624523 where the user seeks an example.

[Updated on: Wed, 24 September 2014 07:30]

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Re: Please tell me use of DBMS_SCHEDULER [message #624643 is a reply to message #624641] Wed, 24 September 2014 07:31 Go to previous messageGo to next message
Michel Cadot
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Are you sure this is such example that is asked?

Re: Please tell me use of DBMS_SCHEDULER [message #624670 is a reply to message #624558] Wed, 24 September 2014 09:50 Go to previous messageGo to next message
joy_division
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aaditya321 wrote on Tue, 23 September 2014 09:24
My problems is here that I want to use DBMS_SCHEDULER in my procedure, how to execute procedure through DBMS_SCHEDULER.


And you have been told, you DO NOT call DBMS_SCHEDULER "in" a procedure. You use DBMS_SCHEDULER to "call" a procedure. The most basic of examples is in the documentation.
Re: Please tell me use of DBMS_SCHEDULER [message #624812 is a reply to message #624670] Fri, 26 September 2014 01:17 Go to previous messageGo to next message
aaditya321
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I got help from sss111ind and try it, sss111ind is telling correct as I want.

Select * from employee;

ID   Employee's Fi LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ------------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason         Martin     25-JUL-96 25-JUL-06  $1,234.56 Toronto    Programmer
02   Alison        Mathews    21-MAR-76 21-FEB-86  $6,661.78 Vancouver  Tester
03   James         Smith      12-DEC-78 15-MAR-90  $6,544.78 Vancouver  Tester
04   Celia         Rice       24-OCT-82 21-APR-99  $2,344.78 Vancouver  Manager
05   Robert        Black      15-JAN-84 08-AUG-98  $2,334.78 Vancouver  Tester
06   Linda         Green      30-JUL-87 04-JAN-96  $4,322.78 New York   Tester
07   David         Larry      31-DEC-90 12-FEB-98  $7,897.78 New York   Manager


create table emp4 as select * from employee where 1=2;


create or replace procedure emp_test
is 
begin
insert into emp4 select * from employee;
commit;
end;
/


BEGIN
 dbms_scheduler.create_program (
    program_name        => 'emp_test_program',
    program_type        => 'STORED_PROCEDURE',--procdure type
    program_action      => 'emp_test',    --procedure name
    enabled             => true,
    comments            => 'Program to insert ');

    DBMS_SCHEDULER.CREATE_SCHEDULE (
    schedule_name   => 'emp_test_schedule',
    start_date      => sysdate,
    repeat_interval => 'freq=minutely; interval=5; bysecond=0;',
    end_date        => null,
    comments        => 'Repeats every 5 minutes');

 dbms_scheduler.create_job (
    job_name      => 'emp_test_job',
    program_name  => 'emp_test_program',
    schedule_name => 'emp_test_schedule',
    enabled       => true,
    comments      => 'Job defined to insert emp4 table');
end;
        
begin
dbms_scheduler.drop_job('emp_test_job');
dbms_scheduler.drop_schedule('emp_test_schedule');
dbms_scheduler.drop_program('emp_test_program');
end;


select * from emp4;

ID   Employee's Fi LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ------------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason         Martin     25-JUL-96 25-JUL-06  $1,234.56 Toronto    Programmer
02   Alison        Mathews    21-MAR-76 21-FEB-86  $6,661.78 Vancouver  Tester
03   James         Smith      12-DEC-78 15-MAR-90  $6,544.78 Vancouver  Tester
04   Celia         Rice       24-OCT-82 21-APR-99  $2,344.78 Vancouver  Manager
05   Robert        Black      15-JAN-84 08-AUG-98  $2,334.78 Vancouver  Tester
06   Linda         Green      30-JUL-87 04-JAN-96  $4,322.78 New York   Tester
07   David         Larry      31-DEC-90 12-FEB-98  $7,897.78 New York   Manager

ID   Employee's Fi LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ------------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason         Martin     25-JUL-96 25-JUL-06  $1,234.56 Toronto    Programmer
02   Alison        Mathews    21-MAR-76 21-FEB-86  $6,661.78 Vancouver  Tester
03   James         Smith      12-DEC-78 15-MAR-90  $6,544.78 Vancouver  Tester
04   Celia         Rice       24-OCT-82 21-APR-99  $2,344.78 Vancouver  Manager
05   Robert        Black      15-JAN-84 08-AUG-98  $2,334.78 Vancouver  Tester
06   Linda         Green      30-JUL-87 04-JAN-96  $4,322.78 New York   Tester
07   David         Larry      31-DEC-90 12-FEB-98  $7,897.78 New York   Manager

ID   Employee's Fi LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ------------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason         Martin     25-JUL-96 25-JUL-06  $1,234.56 Toronto    Programmer
02   Alison        Mathews    21-MAR-76 21-FEB-86  $6,661.78 Vancouver  Tester
03   James         Smith      12-DEC-78 15-MAR-90  $6,544.78 Vancouver  Tester
04   Celia         Rice       24-OCT-82 21-APR-99  $2,344.78 Vancouver  Manager
05   Robert        Black      15-JAN-84 08-AUG-98  $2,334.78 Vancouver  Tester
06   Linda         Green      30-JUL-87 04-JAN-96  $4,322.78 New York   Tester
07   David         Larry      31-DEC-90 12-FEB-98  $7,897.78 New York   Manager

ID   Employee's Fi LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ------------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason         Martin     25-JUL-96 25-JUL-06  $1,234.56 Toronto    Programmer
02   Alison        Mathews    21-MAR-76 21-FEB-86  $6,661.78 Vancouver  Tester
03   James         Smith      12-DEC-78 15-MAR-90  $6,544.78 Vancouver  Tester
04   Celia         Rice       24-OCT-82 21-APR-99  $2,344.78 Vancouver  Manager
05   Robert        Black      15-JAN-84 08-AUG-98  $2,334.78 Vancouver  Tester
06   Linda         Green      30-JUL-87 04-JAN-96  $4,322.78 New York   Tester
07   David         Larry      31-DEC-90 12-FEB-98  $7,897.78 New York   Manager

ID   Employee's Fi LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ------------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason         Martin     25-JUL-96 25-JUL-06  $1,234.56 Toronto    Programmer
02   Alison        Mathews    21-MAR-76 21-FEB-86  $6,661.78 Vancouver  Tester
03   James         Smith      12-DEC-78 15-MAR-90  $6,544.78 Vancouver  Tester
04   Celia         Rice       24-OCT-82 21-APR-99  $2,344.78 Vancouver  Manager
05   Robert        Black      15-JAN-84 08-AUG-98  $2,334.78 Vancouver  Tester
06   Linda         Green      30-JUL-87 04-JAN-96  $4,322.78 New York   Tester
07   David         Larry      31-DEC-90 12-FEB-98  $7,897.78 New York   Manager


I think output is not correct here, please tell me meaning of freq=minutely; interval=5; bysecond=0;
Re: Please tell me use of DBMS_SCHEDULER [message #624813 is a reply to message #624812] Fri, 26 September 2014 01:19 Go to previous messageGo to next message
Michel Cadot
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So why didn't you tell us this was what you want?

Re: Please tell me use of DBMS_SCHEDULER [message #624814 is a reply to message #624812] Fri, 26 September 2014 01:20 Go to previous messageGo to next message
Michel Cadot
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Location: Nanterre, France, http://...
Senior Member
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Quote:
I think output is not correct here


What should be the result? You didn't terll us!

Quote:
please tell me meaning of freq=minutely; interval=5; bysecond=0;


Why didn't you read the documentation?

Re: Please tell me use of DBMS_SCHEDULER [message #624815 is a reply to message #624814] Fri, 26 September 2014 02:16 Go to previous messageGo to previous message
aaditya321
Messages: 225
Registered: January 2014
Location: Delhi
Senior Member
I have read two times documentation, now again I will read documentation.
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