My Oracle Support Banner

Oracle 18c - Complete Checklist for upgrading Oracle 12.x Container Database (CDB) to Oracle Database 18c (18.x) using DBUA (Doc ID 2421552.1)

Last updated on OCTOBER 22, 2019

Applies to:

Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.


 The purpose of this article is to help DBA's / Support Teams to perform the upgrade of a database using DBUA to 18.x.


 DBA, Support


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
 Database Upgrade Assistant (DBUA)
 About Read-Only Oracle Homes
 Upgrade Path / Compatibility Matrix for 18.x Oracle Database
 Requirements and Recommendation for source database
 Requirements and Recommendations for Target database
 Prerequisites for Preparing Oracle Home on Windows
 Pre Upgrade 
 Check for Invalid Objects / Components 
 Gathering Optimizer Statistics to Decrease Oracle Database Downtime
 Verifying Materialized View Refreshes are Complete Before Upgrade
 Ensuring That No Files Are in Backup Mode and no files need media recovery Before Upgrading
 Purging Recycle Bin before upgrade
 Databases That Use Oracle Label Security and Oracle Database Vault
 Copying Transparent Encryption Oracle Wallets
 Check the accounts use Case-Insensitive password version
 About Password Case Sensitivity
 Invoke DBUA
 DBUA ( Step 1 of 10 )
 DBUA ( Step 2 of 10 )
 DBUA ( Step 3 of 10 )
 DBUA ( Step 4 of 10 )
 DBUA ( Step 5 of 10 )
 DBUA ( Step 6 of 10 )
 DBUA ( Step 7 of 10 )
 DBUA ( Step 8 of 10 )
 DBUA ( Step 9 of 10 )
 DBUA ( Step 10 of 10 )
 Post Upgrade
 Known Issues

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.