Overview of the Always Free Autonomous Database
Oracle Cloud Infrastructure's Always Free Autonomous Database is part of Oracle Cloud Infrastructure's Free Tier of services. You can provision up to two Always Free Autonomous Databases in the home region of your tenancy. These databases are provided free of charge, and they are available to users of both free and paid accounts. You can use these Autonomous Databases for small-scale applications, for development, or testing purposes, or for learning about and exploring Oracle Cloud Infrastructure.
Always Free Autonomous Database versions
Always Free Autonomous Databases support only a single Oracle Database version.
- You can see only the installed Always Free database version on the details page.
- If your Always Free database is not the latest version, Oracle automatically migrates it to the latest version at a preselected date about which you will be notified several weeks in advance. You can also update the database by selecting the version on the database details page.See To create an Always Free Autonomous Database for more information.
- You can provision Autonomous Databases only in your Home Region.
- Not all regions support the same database version. The supported version may be 19c-only or 21c-only, depending on the region.
- You cannot create an Always Free Autonomous Database in any Home Region where Always Free Autonomous Databases are not supported. To learn which regions support them, see Data Regions for Platform and Infrastructure Services.
Always Free Autonomous Database Specifications
- Processor: 1 Oracle CPU processor (cannot be scaled)
- Memory: 8 GB RAM
- Database Storage: 20 GB storage (cannot be scaled)
The Autonomous Transaction Processing workload type configures the database for a transactional workload, with a bias towards high volumes of random data access.
The Autonomous Data Warehouse workload type configures the database for a decision support or data warehouse workload, with a bias towards large data scanning operations.
- Database Version: Oracle Database 19c or Oracle Database 21c.
- Infrastructure Type: Shared Exadata infrastructure
- Maximum Simultaneous Database Sessions: 20
After provisioning, you can continue using your Always Free Autonomous Database for as long as you want at no charge. You can terminate the database at any time.
Lifecycle Management for Inactive Always Free Autonomous Databases
If your Always Free Autonomous Database has no activity for a period of 7 consecutive days, the Database service will stop the database automatically. If this happens, restart the database and continue using it. If your Always Free Autonomous Database remains in a stopped state for 3 consecutive months, the database will be reclaimed (automatically terminated) by the Database service.
Using Events and Notifications to Stay Informed About Inactive Always Free Autonomous Databases
You can use Oracle Cloud Infrastructure's Events service to send structured JSON messages about your Always Free Autonomous Database lifecycle events to applications used for automation. For example, you can create automatic email, Slack, PagerDuty, or HTTPS notifications (using the Notifications service) to be alerted if a database is going to be stopped or terminated in the next 48 hours. You can also set up notifications to be alerted when a database is automatically stopped or and terminated.
See the following topics for more information:
- Getting Started with Events for details on working with Events messages.
- Autonomous Database Event Types for details on the currently available Always Free Autonomous Database lifecycle events messages.
- How Notifications Works for an overview of setting up automated notifications based on the JSON messages emitted by the Events service.