The Data that we enter in Salesforce is Stored and Maintained by Salesforce across a Large Architecture, so to maintain a part of the Backend Database we use Oracle and Other Database applications for Large Cloud Systems. Front-end CRM tool has almost no impact on the Backend.
Please visit below thread, the blog you will get some fruitful info...
The Data that we enter in Salesforce is Stored and Maintained by Salesforce across a Large Architecture,
so to maintain a part of the Backend Database we use Oracle and Other Database applications for Large Cloud Systems.
Front-end CRM tool has almost no impact on the Backend.
Please visit below thread, the blog you will get some fruitful info...
http://www.computerworld.com/s/article/9200158/Salesforce.com_unveils_Database.com
http://boards.developerforce.com/t5/Other-Salesforce-Applications/Database-used-in-salesforece-com/td-p/97306
http://www.dbms2.com/2011/09/15/database-architecture-salesforce-com-force-com-and-database/
Please mark this as the best answer if your query is resolved, so it will help others in future.
Thanks,
Ajay Dubedi