All DBMSs stored in the installation directory are updated when you upgrade PowerDesigner.
For DBMSs copied to the model file in previous PowerDesigner versions, you will be invited to upgrade the DBMS when you open the old model. The following situations can occur:
- Shared DBMS - DBMS upgraded and message in the Output window. If you had customized your DBMS, and want to keep your changes, merge the current version DBMS with the previous version, using the merge feature available from the list of DBMSs ().
- Copied DBMS - A confirmation dialog invites you to replace the DBMS, and if you do so, a message appears in the Output window. If you had customized your DBMS, and want to keep your changes, create a new model using a current version DBMS fairly similar to your modified DBMS, and merge it with a model using the DBMS from a previous version.
If no matching DBMS is found then you will continue with the previous version.