Wednesday, 2 May 2012

Oracle Client installation on Ubuntu

Oracle Instant Client is a free Oracle database client. The current version is, and several versions back to are available.

Install RPMs

  • Download the Oracle Instantclient RPM files from Everyone needs either "Basic" or "Basic lite", and most users will want "SQL*Plus" and the "SDK".
  • Convert these .rpm files into .deb packages and install using "alien" ("sudo apt-get install alien" if you don't have it):
    alien -i oracle-instantclient-basic*.rpm
    alien -i oracle-instantclient-sqlplus*.rpm
    alien -i oracle-instantclient-devel*.rpm
  • Test your Instantclient install by using "sqlplus" to connect to your database:
sqlplus  username/password@//dbhost:1521/SID
If sqlplus complains of a missing file, run 
sudo apt-get install libaio1
If sqlplus complains of a missing file, follow the steps in the section "Integrate Oracle Libraries" below.
If you execute sqlplus and get "sqlplus: command not found", see the section below about adding the ORACLE_HOME variable. 

Integrate Oracle Libraries

If oracle applications, such as sqlplus, are complaining about missing libraries, you can add the Oracle libraries to the LD_LIBRARY_PATH each time it is used, or to add it to the system library list create a new file as follows:
sudo vi /etc/
  • and add the oracle library path as the first line. For example,
  • or
  • Then run ldconfig:
    sudo ldconfig


Many Oracle database applications look for Oracle software in the location specified in the environment variable 'ORACLE_HOME'.
Typical workstations will only have one Oracle install, and will want to define this variable in a system-wide location.
sudo vi /etc/profile.d/
Add the following:
export ORACLE_HOME=/usr/lib/oracle/
export ORACLE_HOME=/usr/lib/oracle/11.2/client
Alternatively, each user can define this in their ~/.bash_profile
Note: For 11.04 sqlplus was not recognized as a command unless the following line was also included in the file:

SDK fix

Some packages may look for 'oci.h' in $ORACLE_HOME/include, or in $ORACLE_HOME/rdbms/public
The instant client sometimes places the include files, such as oci.h, in /usr/include/oracle//client.
Inspect your system by running the following commands
ls -d /usr/include/oracle/*/client
If there is no 'include' directory under ORACLE_HOME, and it is located over in /usr/include/oracle/ , create a symbolic link to assist packages looking for these header files. For example,
sudo ln -s /usr/include/oracle/11.2/client $ORACLE_HOME/include
And then check it is correct


No comments:

Post a Comment