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Oracle Autonomous Data Warehouse is a cloud data warehouse service that eliminates virtually all the complexities of operating a data warehouse and securing data. It automates provisioning, configuring, securing, tuning, scaling, patching, backing up, and repairing of the data warehouse. Unlike other “fully managed” cloud data warehouse solutions that only patch and update the service, it also features elastic, automated scaling, performance tuning, security, and a broad set of built-in capabilities that enable machine learning analysis, simple data loading, and data visualizations.

Data Warehouse uses continuous query optimization, table indexing, data summaries, and auto-tuning to ensure consistent high performance even as data volume and number of users grows. Autonomous scaling can temporarily increase compute and I/O by a factor of three to maintain performance. Unlike other cloud services which require downtime to scale, Autonomous Data Warehouse scales while the service continues to run.

Block storage is the primary type of storage used for storing the boot volume of an instance in the Oracle Cloud Infrastructure Compute service. A boot volume is a detachable block storage device that contains the operating system and other software required to boot an instance.

Budgets and Compartment Quotas are two features that can be used to manage cost in an OCI tenancy. Budgets allow you to track and control your spending on OCI services by setting spending thresholds and getting alerts when you exceed them. Compartment Quotas allow you to limit the amount of resources that can be created or used in a compartment by setting quotas on specific resource types or metrics.