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I have Oracle JDK7(JavaSE Hotspot Embedded JRE) and OpenJDK7(Cacao,JamVM,ZeroVM).
Platform is : PPC32 Embedded Platform (e550)
I have run simple prime number java application with both java.
As coclusion Oracle JRE is much faster than open jdk with cacao or jamvm or zero VM.
I am looking to improve the execution speed with openjdk. Need the excecution time same as oracle JRE.
How can I improve the execution speed of java application (single or multithread).
Which are the component different in Oracle and Open JDK.
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Our production Oracle Database version is 10g.
I am trying to install either 11g or 12c on my local machine primarily to access sqlldr.
I am wondering if there are any compatible issues.
Metalink has the definitive client/ server compatibility matrix. It will depend on the full version of the target database. Assuming "10g" means 10.2.0.2 or later, you should be fine with a 12.1 client. If the database is running something earlier than that, you'd generally need an earlier version of the client to be safe.
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Has someone some experience by running WSO2 ESB on Windows for the production environment ? Is it officially support by WSO2 ? Is it recommended ?
Thanks a lot.
You can find the tested/compatible Operating systems here. For some versions, it may not be tested on a windows version, but having not tested doesn't imply that it's not compatible.
https://docs.wso2.com/display/ESB490/Performance+Tuning
This section describes some recommended performance tuning configurations to optimize the ESB. It assumes that you have set up the ESB on a server running Unix/Linux, which is recommended for a production deployment.
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I'm using mysql as xampp(linux) component for my development works for a long time. But I wonder if I can use Oracle as my database. If I can which version should I choose that will fulfill my needs of production level development.
Also I've heard Oracle EE requires money for licensing. What facility they provide by licensing Oracle DB? Can it be used for development?(I'm just curious)
Oracle provides Oracle XE (Express edition) free for developer use which allows you to create and use databases of up to 4GB, use up to 1GB of RAM and use only one CPU. Anything more you gotta pay for it
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The java version of my oracle database is 1.5.0_10.
How do I upgrade it to java 1.7.0_10
Thanks
It's not possible; Oracle supplies a certain version of Java with a certain version of the DBMS, specially modified to run "within" the DBMS. It can only be upgraded by Oracle as part of a new version or a patch release of the DBMS.
See for example this discussion: https://forums.oracle.com/forums/thread.jspa?threadID=2300779
If you mean the internal JVM, I believe that it is not upgradeable.
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Currently i am using VS2008, XP Service pack 3 and DotNet framework 2 to develop desktop applications. If i would like to run those applications in Windows 7 (32bit), what else i need to do?
Thanking you in anticipation.
Regards
SKPaul
XP Service Pack should support the latest DotNet Framework, so you can test to see if your application still run. If the do, you can migrate to Win7 32bit safely. But I'd advice you take caution and also backup if necessary.