Miller L. Oracle Autonomous Database For Dummies 3ed 2021

Textbook in PDF format

An autonomous database is a cloud database that uses ML to eliminate the human labor associated with database tuning, security, backups, updates, and other routine management tasks. It combines the dynamic agility of the cloud with the intelligent responsiveness of applied, adaptive machine learning (ML).
The design goal is to make the database intelligent and self-reliant so as to minimize or eliminate human labor — and associated human error — and ensure data safety and optimal performance.
The core attributes of Autonomous Database — self-driving, self-securing, and self-repairing. At startup, it automatically establishes a triple-mirrored scale-out configuration in one regional cloud data center, with an optional full standby copy in another region.
By applying software updates in a rolling fashion across nodes of the cluster, it keeps the application online during updates of the database, clusterware, operating system (OS), virtual machine (VM), hypervisor, or firmware.
Autonomous Database is composed of the following 3 cloud database services:
Autonomous Data Warehouse (AWD) - optimized for analytical processing.
Autonomous Transaction Processing (ATP) - simplifies database operations for OLTP and real-time analytical applications.
Oracle Autonomous JSON Database (AJD) - to develop JSON-centric applications