Creator of Database Concept

Invention and creation always done by IBM for SQL or RDBMS Concept. If you study Structure Query Language then you can get more idea about invention of SQL done by IBM. Dr. E. Codd invented RDBMS Concept. And after different kind of database was developed and came in to global market like mySQL, PostgreSQL, Oracle, MSSQL, etc. But main thing is RDBMS concept. Relational Database is widely accepted in global market. Because most of of business requirements are fulfilled by this rdbms concept.

Due to these all reasons, IBM is always ahead in database invention and conceptual deployment. But unfortunately Oracle is ahead from IBM in database domain.

In past Oracle didn't have own plateform like operating system and storage plateform. But Oracle captured global market in database domain. Now after took over of Sun, Oracle has own operating system and storage plateform too. As per my thinking, Oracle would be capturing more market share than others in future.

Unfortunately, after certain important inventions in database field, IBM DB2 is not able to capture good market in global technology world. I tried to study and understand IBM DB2 database sometime back due to client's requirement of migration from DB2 to Oracle. I surprised to see so many good features DB2 have. As Database administrator and to perform good database administration we need to understand all database concepts.

For obtaining knowledge of comparision of IBM DB2 and Oracle, you can get good idea and concept from DB2 and Oracle Server comparison.

During remote database administration, database dba has to work hard and known with every concept and features of all kind of databases.

How to identify your shell in Unix

Very important question is how to identify your shell. Sometime we are going to unknown place for troubleshooting of Oracle database issues. But when you sit against Oracle database server which is running on Unix box or Linux box. You may try to run some unix command to check disk space, Oracle home identification, network related command, same time you got error. Now situation is confusing because you know that command is correct then why you got error.

This kind of same situation is created while you tried to schedule some job or deployed shell script for scheduling process. Shell script is either not running or generating some error. This is very common problem on Unix box or Linux server. Oracle database is available for all Unix operating systems and most of Linux operating systems.

Identification of your linux shell or unix shell is very important before start deployment of shell script or schedule processing. Question is how to identify your shell after login into Unix-Linux server.

Linux Shell scripting - Identify your shell is most useful article was published by Database DBA - Dbamerix group.

Mobile Application Development using Oracle

Yes. It is amazing news for all who are Oracle fan. Now onwards, mobile application development is available using Oracle ADF framework. Oracle Application Development Framework is called as Oracle ADF. This is the part of Oracle fusion middleware component. For more details and basic of what is Oracle ADF you can get from following link.

mobile application framework with Oracle ADF

Above article provides introduction of Oracle mobile development and mobile application framework of Oracle. A article has been published by Database Services - Dbametrix group.