When it comes time to change your database schema, use your modeling tool to effect that change. This way you can keep your system model up to date with the database schema. Your model can then serve as accurate and up-to-date documentation of your current schema.
How do you deploy changes from your modeling tool when the modeling tool is not sophisticated enough to propagate complex relationships like foreign key relationships? Combine the modeling tool with a change management tool like Oracle Enterprise Manager's Change Management Pack or Quest software's Schema Manager.
1. Using the modeling tool to deploy your new schema to a newly created user.
2. Using a change management tool, compare the newly created user schema to the production schema.
3. Using a change management tool, compare the differences of the newly created user schema to the production schema.
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About the author: Kenny Smith has been working with Oracle technology on HP servers for over a decade. He specializes in Oracle database architecture, database administration and development. He has presented at numerous Oracle conferences on two continents. He has published many articles describing Oracle solutions and has co-authored "Oracle backup and recovery 101" from Oracle Press.
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