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Upgrade Guide for Microsoft Windows > Preupgrade Tasks > Preparing a Database for Upgrade >

Upgrading Your RDBMS Software

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New releases of Siebel eBusiness Applications might require you to upgrade your RDBMS server software. Review the information in Siebel System Requirements and Supported Platforms to determine if a database server upgrade is required. Refer to the documentation provided by your database vendor for specific instructions on performing the database upgrade.

CAUTION:  If your system does not meet the requirements specified in Siebel System Requirements and Supported Platforms, your upgrade will fail.

• If you previously installed DB2 UDB, you must upgrade to the latest DB2 UDB version before upgrading to Release 7.x. Verify that you have updated the database to the current fixpack level as described in Siebel System Requirements and Supported Platforms.
• If you are performing an upgrade for DB2 UDB, you must use a DB2 database with 4-KB, 16-KB and 32-KB tablespaces defined on it. Otherwise, your upgrade will not complete successfully.
• The NextSeq user defined function (UDF) from Release 6.x was replaced by an alternate version for 7.x, so your DBA needs to verify that only the current version of the UDF is installed. The new function definition accepts only one parameter, and the old one is dropped.

Carefully read the relevant chapters of Siebel Server Installation Guide for the RDBMS software you plan to configure and install, and for instructions for installing NextSeq.

Make sure that the RDBMS upgrade was successful before you proceed with the upgrade of your Siebel database.

NOTE:  Be sure to upgrade your client database connectivity software on all upgraded machines to the version specified in Siebel System Requirements and Supported Platforms.

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