This article will be discussing the Flashback Query feature of Oracle database. As the name suggests, this feature is about querying database at a previous point-in-time. We can provide a previous time while executing a query, and the database will show results that would have shown at that time.
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The Oracle Database Resource Manager is a feature that provides granular control of database resources allocated to users, applications, and services. The Oracle Database Resource Manager enables you to manage multiple workloads that are contending for system and database resources.