Multiple Oracle Homes on same server (Oracle AS and DB)

Question

Hello All,
OS : RHEL 4.7
Oracle Application Server : 10.1.3.1
Oracle Database : 11.2.0.1.0
I have been asked to install oracle 11g on a server which is already running Oracle Application Server 10.1.3.1
Due to lack of space on the server the sys admin gave me the space under /usr, Installation went smooth and successfull and the location of complete 11g installed is "/usr/11gr2/app/11g/product"
Database is also created using DBCA with file location "/usr/11gr2/app/11g/oradata"
Question is, I need to set environmental variable under the same user "oracle" so that when one logs in, should be able to logon by just typing sqlplus...
Current .bash_profile of the user "oracle" looks like this...
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
# User specific environment and startup programs
PATH=/u01/oracle/product/10.1.3.1/OracleAS_1/jdk/bin:$PATH:$HOME/bin
export RPD_HOME=/home/oracle/ORABI/OBI/server/Repository
export ORACLE_HOME=/u01/oracle/product/10.1.3.1/OracleAS_1
#export JAVA_HOME=/u01/oracle/product/10.1.3.1/OracleAS_1/jdk
export JAVA_HOME=/home/oracle/product/10.1.3.1/OracleAS_1/jdk/
PATH=$PATH:$ORACLE_HOME/bin
PATH=$PATH:$ORACLE_HOME/opmn/bin
export ANT_HOME=/usr/local/ant
export PATH=${PATH}:${ANT_HOME}/bin
#export JAVA_HOME=/usr/local/ant/jdk
export PATH
Please suggest to include this oracle_home also in the above .bash_profile or any alternative to achive the needs..
Thanks
Edited by: user1687821 on Dec 22, 2011 1:10 AM

Answer 1

Hello;
I do a similar thing using Oracle 10 and 11, but I keep it manual and use bash to default to one.
To switch Oracle homes I run the command : ( using which profile I need )
source ./o10g.profile
Note the 'unset ORACLE_HOME' command in each profile.
o10g.profile
TMP=/tmp; export TMP
TMPDIR=$TMP; export TMPDIR
export ORACLE_BASE=/u01/app/oracle
unset ORACLE_HOME
export ORACLE_HOME=/u01/app/oracle/product/10.2.0
#export DISPLAY=localhost:0.0
export TZ=CST6CDT
export ORA_OCI_NO_OPTIMIZED_FETCH=1
ORA_OCI_NO_OPTIMIZED_FETCH=1; export ORA_OCI_NO_OPTIMIZED_FETCH
export ORACLE_SID=<ORCL>
export ORACLE_TERM=xterm
#export TNS_ADMIN= Set if sqlnet.ora, tnsnames.ora, etc. are not in $ORACLE_HOME/network/admin
export NLS_LANG=AMERICAN;
LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
export LD_LIBRARY_PATH
# Set shell search paths
unset PATH
PATH=/usr/sbin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin; export PATH
export PATH=$PATH:$ORACLE_HOME/bin
#CLASSPATH
CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib
CLASSPATH=$CLASSPATH:$ORACLE_HOME/network/jlib
export EDITOR=vi
set -o vi
PS1='$PWD:$ORACLE_SID>'o11g.profile
TMP=/tmp; export TMP
TMPDIR=$TMP; export TMPDIR
export ORACLE_BASE=/u01/app/oracle
unset ORACLE_HOME
export ORACLE_HOME=/u01/app/oracle/product/11.2.0
#export DISPLAY=localhost:0.0
export TZ=CST6CDT
export ORA_OCI_NO_OPTIMIZED_FETCH=1
ORA_OCI_NO_OPTIMIZED_FETCH=1; export ORA_OCI_NO_OPTIMIZED_FETCH
export ORACLE_SID=<ORCL>
export ORACLE_TERM=xterm
#export TNS_ADMIN= Set if sqlnet.ora, tnsnames.ora, etc. are not in $ORACLE_HOME/network/admin
export NLS_LANG=AMERICAN;
LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
export LD_LIBRARY_PATH
# Set shell search paths
unset PATH
PATH=/usr/sbin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin; export PATH
export PATH=$PATH:$ORACLE_HOME/bin
#CLASSPATH
CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib
CLASSPATH=$CLASSPATH:$ORACLE_HOME/network/jlib
export EDITOR=vi
set -o vi
PS1='$PWD:$ORACLE_SID>'Best Regards
mseberg