How to change the database schema with Oracle Workspace Manager versioned tables

Question

We have an Oracle database that uses Oracle Workspace Manager (OWM) to version several of our tables. Currently we are supporting 4 workspaces in our system. We have now identified the need to change our database schema by introducing a new table to help create a level of abstraction. The current schema looks like the following:

Table A ---- FK ----> Table B
           |
           |
            ------- FK ----> Table C

We want it to look like the following:

Table A ------ FK ----> Table A' ----- FK ------> Table B
                                    |
                                    |
                                     ---------- FK ------> Table C

Table A is a version enabled table, while both Table B and C are not version enabled. We would like to keep Table B and C not-version enabled after the migration, and ideally Table A' would also not be version enabled. We would also like to have these foreign key columns to be non-nullable in their tables.

Any idea on how to accomplish this schema migration?

Answer 1

Why would you use OWM anyhow? There is little support for it and there aren't any serious projects that use OWM that I'm aware of. Good luck.