About Siebel Additive Schema Upgrade Changes

Upgrades: All upgrades.

Environments: Production test, production.

You can apply additive and nonadditive schema changes separately to the production database in order to reduce the downtime for the in-place upgrade.

Nonadditive schema changes impact the running application data model and require shutting down the production database. Additive schema changes are nondisruptive; these changes do not impact Siebel application usage. Therefore, you can apply additive schema changes to the live production database before you perform the in-place upgrade. This reduces the number of steps that must be performed when the database is offline and this reduces database downtime.

This is an optional process; if you do not apply the additive schema changes before you perform the production database in-place upgrade, they are applied in one step with the nonadditive upgrade changes.