Hi @ArunRaaman ,
In short, ReportServer Database and ReportServerTempDB Database are used as permanent data storage and temporary storage, respectively. The database is simply used to store all information, such as report definitions, subscription information, and so on.
A report server is a stateless server that uses the SQL Server Database Engine to store metadata and object definitions. Report Server will use the data in the database for transaction processing, such as forming reports, mounting websites, and processing data.
More information about ReprtServer Database: Report Server database.
More information about ReprtServerTempDB Database: Report Server temporary database.
Hope this helps.
Best Regards,
Joy
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