Sql plus not opening after installing oracle 11g?

Manasa, If the error message reads SP2-0750: You may need to set ORACLE_HOME to your Oracle software directory as you stated then the answer can depend on what OS you are using. Let's say you are using some flavor of windows, you can go to the system properties -> advanced tab -> environment variables -> system variables and check the variables ORACLE_HOME and PATH. Let's say that you installed oracle at C:\oracle\ora11\ In the PATH variable, among other values, you need to have the location of oracle bin directory; in this instance: 'C:\oracle\ora11\bin;' Now, I should note that when oracle references the path variable, it looks for the first instance of an oracle path.So let's say you had two installations of oracle at the following locations: 'C:\oracle\ora9i\' 'C:\oracle\ora11\' And the path variable was set like so: 'C:\oracle\9i\bin;C:\oracle\ora11\bin;' The result would be so that when you open sqlplus, it would automatically reference the sqlplus program located at 'C:\oracle\9i\bin\' - whichever version that may be.

(this would also be true for any oracle utility found in the bin directory such as DBCA or expdp) (this is also assuming you are note explicitly declaring which sqlplus you want to run i.e. You just type 'sqlplus' in a command prompt rather than 'c:\oracle\ora11\bin\sqlplus') The oracle_home variable would be set to 'C:\oracle\ora11\' however i'll note that my windows 7 desktop version runs fine with this value null.It is, however, not a production desktop as you would imagine.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.