Oracle job timed, started, stopped, inspected. Run Script ____oracle

Source: Internet
Author: User

What is the relationship between the Last_date and next_date in the job, and the interval, last_date the start of the job, or the end of the execution time. Next_date is the job start time or end time plus interval.

If a job has a long execution time (such as interval), there will be multiple identical jobs executing concurrently.

last_date= Start time
Last_date+interval=next_date

But to be clear, next_date is usually not the real start time, the real start time is often a few seconds later than Next_date,
Which is the delay.

2, not.

1
The job's next time is even better when the job starts executing.
It's written only after the job is executed successfully.
When the job execution time is longer than interval, which means that during the execution of the job, Nexttime is over.
Then nexttime becomes the time when the job is done
2
What you're saying doesn't exist.


sql> exec Dbms_job.broken (21,true);

The Pl/sql process was successfully completed

Sql> select * from User_jobs;

       JOB log_user                        priv_user                       Schema_ user                     last_date   last_sec         THIS_DATE   this_sec         next_date   NEXT_SEC          Total_time Broken interval                                                                               Failures what                                                                                 nls_env                                                                              misc_env                                                              INSTANCE
---------- ------------------------------ ------------------------------ ------------------------------ ----------- ---------------- ----------- ---------------- ----------- ---------------- ---------- ------ ------------------------- ------------------------------------------------------- ---------- ---------------------------------------------- ---------------------------------- ----------------------------------------------------------------------------- --- ---------------------------------------------------------------- ----------
        unions                          unions                           unions                          2006-11-30  16:32:27                                        4000-1-1     00:00:00                   0 y      trunc (sysdate) +16/24+1                                                                        0 achievetohistory;                                                                   nls_language= ' Simplified Chinese ' nls_territory= ' nls_currency= ' RMB ' nls_i                                                        0

sql> exec Dbms_job.run (21);

The Pl/sql process was successfully completed

Sql> select * from User_jobs;

       JOB log_user                        priv_user                       Schema_ user                     last_date   last_sec         THIS_DATE   this_sec         next_date   NEXT_SEC          Total_time Broken interval                                                                               Failures what                                                                                 nls_env                                                                              misc_env                                                              INSTANCE
---------- ------------------------------ ------------------------------ ------------------------------ ----------- ---------------- ----------- ---------------- ----------- ---------------- ---------- ------ ------------------------- ------------------------------------------------------- ---------- ---------------------------------------------- ---------------------------------- ----------------------------------------------------------------------------- --- ---------------------------------------------------------------- ----------
        unions                          unions                           unions                          2006-11-30  16:46:14                                        2006-12-1 1 16:00:00                   0 n       trunc (sysdate) +16/24+1                                                                        0 achievetohistory;                                                                   nls_language= ' Simplified Chinese ' nls_territory= ' nls_currency= ' ' RMB ' nls_i 0102000200000000                                                             0

Try to write a scheduled task:

Declare

V_job number: = 1;

Begin

Dbms_job.submit (V_job, ' sp_fact_charge_code; ', sysdate, ' sysdate+1/1440 ');

Commit

End

/

Explain the procedure above.

The program body has four parameters, respectively, meaning: V_job is the plan task number, ' Sp_fact_charge_ Code ' is the scheduled task name, if it is more than one scheduled task, separated by semicolons, the third sysdate means to perform this task immediately, the fourth parameter is the interval time setting, which is executed once per minute, 1/1440=1/24/60.

View tasks: SELECT * from User_jobs;select * all_jobs;

View running tasks (deprecated, slow): SELECT * from dba_jobs_running;

It is also worth mentioning that when installing Oracle configuration, there is a parameter:

Job_queue_processes=4 (default 4)

This parameter defines the maximum number of jobs that can be run at the current time, and its max value can be set to 36.

In addition to the submit parameters, some of the remaining parameters are:

Dbms_job.run (V_job); Run Job

Dbms_job.broken (v_job,true,next_date); Stop a job, the inside parameter true also but False,next_date (stop at a moment) also is sysdate (stop immediately).

Dbms_job.remove (V_job); Delete a job

Dbms_job.what (V_job, ' sp_fact_charge_code; '); Modify a job name

Dbms_job.next_date (v_job,sysdate); Modify Next Run time

example, set to run 2:10:10 every day

Trunc (sysdate) +2/24+10/24/60+10/24/60/60//Run time

Trunc (sysdate) +1+2/24+10/24/60+10/24/60/60//Interval run time

example, set the 2:10:10 operation of number 2nd per month

Trunc (sysdate, ' mm ') +1+2/24+10/24/60+10/24/60/60//Run time

Trunc (Add_mouths (sysdate,1), ' mm ') +1+2/24+10/24/60+10/24/60/60//Interval run time

example, set each quarter ...

Trunce (sysdate, ' Q ') +1+2/24+10/24/60+10/24/60/60//Run time

Trunce (Add_mouths (sysdate,3), ' Q ') +1+2/24+10/24/60+10/24/60/60//Interval run time

The other year is ' Y;

example, set weekly one ...

Next_day (sysdate ' Monday ')

......

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