scheduler

What is the difference between DBMS_JOB and DBMS_SCHEDULER ? From other forums: Although dbms_job still exists in 10g and 11g, Oracle recommends the use of dbms_scheduler in releases 10g and up. No new features are being added to dbms_job and you will likely quickly run into its limitations. dbms_scheduler is more robust and fully-featured than dbms_job and includes the following features that dbms_job does not have : logging of job runs (job history) simple but powerful scheduling syntax (similar to but more powerful than cron syntax) running of jobs outside of the database on the operating

在Oracle10g里面，已经不赞成使用DBMS_JOB，推荐使用DBMS_SCHEDULER，它的健壮为调度提供更好的规划和结构。下面我只简单写一个例子。 begin DBMS_SCHEDULER.CREATE_PROGRAM( program_name => 'guozhw', program_type => 'STORED_PROCEDURE', program_action => 'guozhwTest', number_of_arguments => 0, enabled => true, comments => '定时调度测试' ); end; program_name:program的名字 program_type:program的类型。STORED_PROCEDURE存储过程 program_action:要执行的程序。guozhwTest 存储过程的名字 举例如下： BEGIN DBMS_SCHEDULER.CREATE_PROGRAM ( program_name => 'PRM_CREATEDUNDATA', program_action => 'PKG_SCHEDULER.CREATEDUNDATA', program_type => 'STORED_PROCEDURE', enabled => FALSE, number_of_arguments => 5

Looking through the scheduler source code (2.6.34, kernel/sched.c), I can see how the "pluggable" schedulers are used, and I believe I understand the interface to be implemented. What I don't understand yet is how to get my code built into the kernel. At the very least, pointers to other sites would be appreciated. Right now, I'm grepping for SCHED_FIFO, SCHED_RR, and SCHED_NORMAL in the kernel source tree, so really I'm looking for a more insightful way to look at it :-) EDIT: As some background, I'm very familiar with the FreeBSD scheduler (and the FreeBSD kernel in general), so I'm not

I am trying to run a simple JAVA program once per day on a Windows 7 machine. My code runs fine inside NetBeans. If I do a clean and build it suggests this: C:\Program Files\Java\jdk1.7.0/bin/java -jar "C:\Users\User1\Documents\NetBeansProjects\Facebook\dist\Facebook.jar" This does not work from the DOS prompt of course because of the space between program and files so I do this: C:\Program Files\Java\jdk1.7.0/bin/java -jar "C:\Users\User1\Documents\NetBeansProjects\Facebook\dist\Facebook.jar" -jar "C:\Users\User1\Documents\NetBeansProjects\Facebook\dist\Facebook.jar" This works from the DOS

I am trying to get a better understanding so I can scope the reliability impact from potential interoperability issues when creating an android app/service. I would like to figure out how process priority is determined. The differences in priority between services and activities and if the scheduler treats their priority differently. Basically I'm trying to get a strong understanding of how likely it is that an activity or service is starved by a rogue processes from a different application (or even the linux kernel.) Does anyone have any good links you could recommend... My searches haven't

I need to execute a piece of code 1 time everyday in playframework2.0.4 when I try to do with the class extends GlobalSettings it works. But it works for every instance requesting. I want it works when server starts and does its duty everyday 1 time. package controllers; import java.util.concurrent.TimeUnit; import akka.util.Duration; import play.Application; import play.GlobalSettings; import play.libs.Akka; public class ParserJobApp extends GlobalSettings{ @Override public void onStart(Application app) { Akka.system().scheduler().schedule(Duration.create(0, TimeUnit.MILLISECONDS),Duration