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About Upgrading Your RDBMS in the Siebel Environment

Upgrades: All Siebel upgrades.

Environments: Development, production test, production.

Databases: All databases.

If your currently installed RDBMS version is not supported in the new release, you must upgrade your RDBMS before performing the Siebel Database upgrade. For information on supported RDBMS versions, see System Requirements and Supported Platforms on Siebel SupportWeb.

If your currently installed RDBMS version is supported in the new release, and you plan to upgrade your RDBMS, you can do so before or after upgrading your Siebel Database.

The following guidelines and requirements are for planning your RDBMS upgrade.

NOTE:  When you upgrade the RDBMS, also be sure to upgrade your client database connectivity software. See System Requirements and Supported Platforms on Siebel SupportWeb.

Oracle

• See Alert 1053 on Oracle's Siebel SupportWeb for planning information on upgrading an Oracle RDBMS. If you upgrade the Siebel Database and then upgrade the Oracle RDBMS, you must validate the Siebel Database schema after the upgrade. See Verifying an Upgraded Oracle RDBMS After a Siebel Upgrade.
• Development, production test, and production upgrades on both Oracle 9i and 10g can be run in CBO mode.

IBM DB2

• After upgrading your IBM DB2 RDBMS, you must upgrade the database instance.
• The DB2 database must have 4-KB, 16-KB, and 32-KB tablespaces defined on it. Otherwise, your upgrade will not complete successfully.