Hi Azaruddin,

BigObjects let you store and manage large amounts of data on the Salesforce platform.

Within Force.com, objects are used to store and access data. Different kinds of objects are provided with different capabilities to align with different use cases. Standard Objects store data as defined by Salesforce while Custom Objects are created to store information unique to your organization. External Objects are provided to connect to data that is stored outside of your Salesforce organization.

Define and Deploy Custom BigObjects • Populate a Custom BigObject • Query BigObjects BigObjects are similar in that they capture data for use within Force.com and are accessible via a standard set of APIs to clients and external systems. What differentiates BigObjects is that they have been built to provide consistent performance whether there are 1 million records, 100 million, or even 1 billion records.

The data does not count against your database storage.  This data is not stored in the same Oracle database like the rest of your objects are.Instead, they are stored in something like HBase on the backend.

For more information may I suggest you please check with below link which might help you accelerate further.

• https://resources.docs.salesforce.com/sfdc/pdf/big_objects_guide.pdf

Hope this helps.

Please mark this as solved if it's resolved so that it gets removed from the unanswered queue which results in helping others who are encountering a similar issue.

Thanks,
Nagendra