Oracle

Clone Oracle Database configured with Oracle Key Vault (OKV)

How to clone an Oracle Database which is configured to store the TDE (encryption keys) in the Oracle Key Vault (OKV)(…)

Patching Oracle databases with Nutanix NDB

A few years back I had the great opportunity to test Nutanix NDB, at that time called Nutanix Era, and I had written a few blogs about provisioning Oracle databases, taking snapshot, log catchup, cloning a database, restoring a database,(…)

Migration from Non-CDB to Multitenant : CDB is using local undo, but no undo tablespace found in the PDB

During a past migration test from on-premises to ExaCC, I faced a pdb violation, stating, CDB is using local undo, but no undo tablespace found in the PDB, after having run noncdb_to_pdb.sql script. Explanation The problem comes from the fact(…)

Migration from Non-CDB to Multitenant : Wallet Key Needed

I have been recently able to make several migration tests from On-Premises to Exadata, and during some of my tests I faced a PDB_PLUG_IN_VIOLATIONS with cause been “Wallet Key Needed” when converting a migrated Non-CDB to PDB. Explanation This violation(…)

Physical Online Migration to ExaCC with Oracle Zero Downtime Migration (ZDM)

A while ago I had been testing and blogging about ZDM, see my previous articles. And I finally had the chance to implement it at one of our customer to migrate on-premise databases to Exadata Cloud @Customer. After having been(…)

Logical Offline Migration to ExaCC with Oracle Zero Downtime Migration (ZDM)

A while ago I had been testing and blogging about ZDM, see my previous articles. And I finally had the chance to implement it at one of our customer to migrate on-premises database to Exadata Cloud @Customer. In this article(…)

Oracle ZDM Migration – java.security.InvalidKeyException: invalid key format

ZDM tool migration requires SSH Passwordless Login without passphrase between ZDM Host, the source and the target. Configuring appropriate keys might still result in a java security exception on this one. In this blog I will tell you how to(…)

How to create a Backup Report in EM Cloud Control 13c

This blog describes how to create a backup report in Enterprise Manager 13c.

How to patch your ODA to 19.21?

Introduction Patch 19.21 is now available for Oracle Database Appliance series. Let’s find out what’s new and how to apply this patch. What’s new? The most important new component is Linux 8. X10 series were already running on Linux 8(…)

What is the fastest method to connect to an Oracle database?

There are still applications around, which do connect to the database, do some stuff and then disconnect again. I.e. for each and every operation a logon to the database is necessary. This produces unnecessary overhead and is expressed in a(…)