In most cases you can from the command prompt you can type in env. This will return the environment variables and identify the path for $ORACLE_HOME.
Oracle 11i Oracle 11i
The oracle 11g certification is for those who plan to use and or teach oracle 11g programs. They must go through the training process in order to fully be able to teach it.
Oracle 11g R2
grams
Orable 11g is a database. There are new features for DBA's and Developers. A new feature would be simple_integer, a new data type said to be faster than pls_integer.
I want the latest featurea in oracle 12c
r12
11g Release 2
G signifies "Grid Computing"... With the release of Oracle 10g in 2003, Oracle changed the suffix in their previous release version; from 9i to 10g... 'I' stands for Internet...this was done as a marketing effort in order to show Oracle's move towards Grid Computing... Purely a marketing strategy...
multidimensional database
The oracle 11G certification can be one of the most difficult certifications in order to get. The only thing that would be needed to pass this test is to make sure to bring your laptop.
In oracle 10g or 11g, 'g' represents grid computing. Which enables clusters of low-cost, industry standard servers to be treated as a single unit. BY Er. Gurinder Singh