While installing Oracle software new folder Directory created in ORACLE_BASE called oinventory what is it ? and what the benefits of using this folder ? What kind of information will be stored ?
The inventory is created once you install Database or used for upgrades and patches. two kind of oracle inventory one called central inventory per server and another one called local inventory for each ORACLE_HOME, the difference between each of them central inventory basically contains a high-level list of components installed on the server. It is updated each time components are installed or uninstalled but it does not have detailed information such as the patch level of each ORACLE_HOME. on another hand local inventory contains some component information included with patch-level information.
another different is The Central Inventory contains the information related to all Oracle products installed on a host. and consists of a file called inventory.xml, which lists all the Oracle Homes installed on the node.
for local inventory ( $ORACLE_HOME/inventory ) that contains the detail of the patch level for that ORACLE_HOME. The Local Inventory gets updated whenever a patch is applied to the ORACLE_HOME, using OUI. If the Local Inventory becomes corrupt or is lost, this is very difficult to recover, and may result in having to reinstall the ORACLE_HOME and re-apply all patchsets and patches.
For More Information about this topic refer to MOS :
Global and Local Inventory explained [ID 360079.1]
FAQs on Central Inventory and Oracle Home Inventory (Local Inventory) in Oracle RDBMS [ID 564192.1]
Thank you
Osama mustafa
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Osama considered as one of the leaders in Cloud technology, DevOps and database in the Middle-East. I have more than ten years of experience within the industry. moreover, certfied 4x AWS , 4x Azure and 6x OCI, have also obtained database certifications for multiple providers.
In addition to having experience with Oracle database and Oracle products, such as middle-ware, OID, OAM and OIM, I have gained substantial knowledge with different databases.
Currently, I am architecting and implementing Cloud and DevOps. On top of that, I'm providing solutions for companies that allow them to implement the solutions and to follow the best practices.
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