Hi, I have already set the ORACLE_HOME=/u01/app/oracle/product/11.2.0/xe It was set by executing the ". ./oracle_env.sh" from the location /u01/app/oracle/product/11.2.0/xe/bin/ and for "LD_LIBRARY_PATH", following is the o/p of .bash_profile. --------------------------------------- cat .bash_profile # .bash_profile # Get the aliases and functions if -f ~/.bashrc ; then . ~/.bashrc fi # User specific environment and startup programs PATH=$PATH:$HOME/bin . /u01/app/oracle/product/11.2.0/xe/bin/oracle_env.sh export PATH LD_LIBRARY_PATH=/u01/app/oracle/product/11.2.0/xe/lib export LD_LIBRARY_PATH ------------------------------------ Still the same error