Upgrading IBM® Db2 Warehouse to version 11.5

To upgrade to version 11.5, carry out the pre-upgrade, upgrade, and post-upgrade tasks.

Before upgrading IBM Db2 Warehouse to version 11.5
Before upgrading to version 11.5, follow this procedure.
Verifying the database before the upgrade
Before you upgrade the database engine on Db2 Warehouse, it is important to use the db2ckupgrade command to verify that your databases are ready for upgrade.
Upgrading IBM Db2 Warehouse to version 11.5 (main procedure)
To upgrade to version 11.5, follow this procedure.
After upgrading IBM Db2 Warehouse to version 11.5
To finalize your upgrade to version 11.5 and to verify that it was successful, follow this procedure.
Troubleshooting an upgrade of IBM Db2 Warehouse to version 11.5
If your upgrade attempt fails, carry out one of the procedures described here.
Preserving old certificate files during upgrade
If you are upgrading IAS from versions older than 1.0.23.2 to 1.0.23.2 or newer, or Db2 Warehouse from versions older than 11.5.4.0-CN2 to 11.5.4.0-CN2 or newer, you must specify the old certificates by using the SSL environment variables to retain a self-generated certificate.

Parent topic: Setting up IBM Db2 Warehouse