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Tuesday, December 25, 2012

Moodle

Moodle is an Open Source Course Management System (CMS), also known as a Learning Management System (LMS) or a Virtual Learning Environment (VLE). It has become very popular among educators around the world as a tool for creating online dynamic web sites for their students. To work, it needs to be installed on a web server somewhere, either on one of your own computers or one at a web hosting company.

Monday, December 24, 2012

What is J2ME or Java ME?


Java Platform, Micro Edition (Java ME) provides a robust, flexible environment for applications running on mobile and embedded devices: mobile phones, set-top boxes, Blu-ray Disc players, digital media devices, M2M modules, printers and more.
Java ME technology was originally created in order to deal with the constraints associated with building applications for small devices. For this purpose Oracle defined the basics for Java ME technology to fit such a limited environment and make it possible to create Java applications running on small devices with limited memory, display and power capacity.

Sunday, September 2, 2012

Metadata

Metadata (metacontent) is defined as data providing information about one or more aspects of the data, such as:
  • Means of creation of the data
  • Purpose of the data
  • Time and date of creation
  • Creator or author of data
  • Location on a computer network where the data was created
  • Standards used

Wednesday, August 29, 2012

Cygwin


  • a collection of tools which provide a Linux look and feel environment for Windows.
  • a DLL (cygwin1.dll) which acts as a Linux API layer providing substantial Linux API functionality.
It is not:
  • a way to run native Linux apps on Windows. You must rebuild your application from source if you want it to run on Windows.
  • a way to magically make native Windows apps aware of UNIX® functionality like signals, ptys, etc. Again, you need to build your apps from source if you want to take advantage of Cygwin functionality.

Monday, August 27, 2012

List of file types and names used by Oracle

The following is a list of file types and names used by Oracle.
sid.DBS.xxx.DBF
Database files such as sid.DBS.CONTROL.DBF, sid.DBS.DATABASE1.DBF, or sid.DBS.LOG1.DBF contain the entire Oracle database including data dictionary, user tables, log files, and so on.
sid.DBS.INIT.ORA
Parameter file used when instance is started.
sid.P.ORAENV
Environment file containing user environment. Always to be run before start of an instance or an application: /DO sid.P.ORAENV.
S.E.tsn.YYYY-MM-DD.hh.mm.ss
Temporary ENTER-PROCEDURE file for starting background processes (using $ORAC1020.DEMO.P.ENTER).
S.OUT.tsn.YYYY-MM-DD.hhmmss
Temporary files of background processes containing run-time information. After a task is successfully completed, these files are removed. These files can help diagnosis.
L.sid.xxxx.SYSOUT.tsn
Run-time listing documenting the start of a background process. When process finishes orderly listings are removed, except the SDF-P variable BJGOUT is set to KEEP in sid.P.ORAENV for diagnosis purposes. xxxx corresponds with the identifier of Oracle background jobs.
Oracle Net Services LOG files
All errors encountered in Oracle network products are appended to a log file. The default directory path on BS2000/OSD is network.log. For more information about Oracle Net Services log files, refer to Oracle Database Net Services Administrator's Guide .
ALERT.sid.LOG
This file lists the log of significant events and errors of the database. If this file exits, the same file is used, else a new file is created. This file is valuable for diagnosis, and should not be removed.
T.sid.INSTALL.E.SUPER
To be removed after successful installation.
T.sid.INSTALL.E.SUPER.72
To be removed after successful installation.
L.sid.xxx.LOG
To be removed after successful installation, for example, L.sid.CATALOG.LOG.
ORAXALOG.tsn-NULL-YYMMDD.TRC
This file is used to trace errors when openUTM is used with Oracle. This file is created only when an error occurs. NULL can be replaced by a db_name when specified in the open string.
OTRC.sid.tsn.program.TRC
This trace file is created for one of the following reasons:
  • To be analyzed by TKPROF utility, created after switch on of SQL trace by
    alter session set sql_trace=true;
  • To be analyzed when internal errors (example: ORA-00600) or special events occur

BYOD

BYOD is a phrase which means to bring own computing devices – such as smartphones, laptops and PDAs – to the workplace for use and connectivity on the corporate network.