NAME

       Oracle::Instances - Lib for Oracle instances and versions retrieval

DESCRIPTION

       This module provides a function to retrieve information about Oracle instances on the
       current server.

       To do so, the function reads the /etc/oratab file to find instances and then:

       1.  Checks the existence of the ORACLE_HOME directory.

       2.  Add (ORACLE_SID, ORACLE_HOME, AUTOSTART) to the databases hash.

       3.  Go and find server version and bundle for each ORACLE_HOME.

           This information is found by executing the "tnsping" command and by reading the
           following XML file:

            $ORACLE_HOME/inventory/Components21/oracle.server/*/context.xml

           The following bundles are known: SE1 (Standard Edition One), SE (Standard Edition), EE
           (Enterprise Edition), XE (Express Edition).

       4.  Returns the database hash as follows:

            {
                'SID' => {
                    'BUNDLE' => 'Standard',
                    'AUTOSTART' => 0,
                    'ORA_HOME' => '/home/oracle/oracle/product/11.2.0',
                    'VERSION' => '11.2.0.4.0'
                }
            };

       Optionally, you can call "getInstances()" to return only the hash of versions and bundles,
       instead of the complete instances hash:

        {
            '/home/oracle/oracle/product/11.2.0' => {
                'BUNDLE' => 'Standard',
                'VERSION' => '11.2.0.4.0'
            }
        };

       In that case, you just have to pass parameter 1 (integer one) when calling the function.

   Exports
       The module exports the "getInstances()" function.

   getInstances()
       Synopsis

           getInstances($version_only)

       where $versions_only is a integer (tested as a bool)

           my $database = getInstances()
           my $versions = getInstances(1)

       Return values

       The function returns a hash reference containing the instances or versions.

perl v5.36.0                      Ocsinventory::Agent::Modules::Databases::Oracle::Instances(3pm)