This guide provides a compilation of topics from the Oracle Database user assistance documentation that are collected to help you complete a specific use case scenario.

Use Case Scenario for this Document

Use this scenario document to assist you to upgrade an earlier release non-CDB to the new release Oracle Database, and then convert the non-CDB to a PDB.

Prerequisites for this Scenario

  • You have installed Oracle Database 18c on your server with a multitenant container database (CDB) deployment

Oracle recommends that you back up your database.

Outline for this Scenario

  1. Checking Compatibility Before Upgrading Oracle Database. Check that your earlier release is compatible with this upgrade scenario.

  2. Preparing to Upgrade Oracle Database. Review steps and complete preparation tasks for this upgrade scenario.

  3. Upgrading Oracle Database. Upgrade your database using one of the methods described.

  4. Post-upgrade tasks for Oracle Database. Complete this basic list of post-upgrade tasks.

  5. Creating a PDB from your Non-CDB. Use this procedure to move your non-CDB database into a PDB.

These steps correspond to the chapters in this document.

Documentation Accessibility

For information about Oracle's commitment to accessibility, visit the Oracle Accessibility Program website at

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.