This document describes new features implemented in Oracle Database 21c. Additionally, this document provides you with practices for key new features.


Read Learning Database New Features if you want to learn about features, options, and enhancements that are new in Oracle Database 21c.

Documentation Accessibility

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Access to Oracle Support

Oracle customers that have purchased support have access to electronic support through My Oracle Support. For information, visit or visit if you are hearing impaired.

Related Documents

For more information, see the following documents in the Oracle Database 21c documentation set:

  • Oracle Database Error Messages

  • Oracle Database Administrator’s Guide

  • Oracle Database Concepts

  • Oracle Database Reference


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