xDB Reporting database
Overview of Sitecore xDB Reporting database supported infrastructure, references, and privacy and security.
The xDB Reporting database contains data that has been aggregated or reduced by xDB Processing.
You can host the xDB Reporting database on:
SQL Server
SQL Azure
Refer to the Sitecore compatibility table for compatible versions.
The xDB Reporting database has its place in the Sitecore reference structure. It can be referenced by other roles, and it can also reference other roles.

Referenced by
The xDB Reporting database is referenced by the following roles:
References
The xDB Reporting database does not reference other roles.
The xDB Reporting database is used in the following data flows and processes:
Assuming default behavior, the xDB Reporting database does not handle personal data.
Assumptions
Custom contact and interaction aggregation processors are not saving personal data to the xDB Reporting database.
Custom processing workers are not saving personal data to the xDB Reporting database.
Custom code and custom applications are not saving personal data to the xDB Reporting database.
Important
Do not write personal data to the xDB Reporting database from custom contact or interaction aggregation processors or custom distributed processing workers.