#migration

When migrating a large database with GoldenGate, most of the volume is sometimes in old partitions which no longer change.

When migrating a Coordinated Replicat for a client, I faced a very specific OGG-02454 error that I wanted to share.

In a previous blog, I went through the full procedure of renaming a GoldenGate extract from the adminclient. I included all necessary steps to avoid missing transactions.

Throughout my consulting missions, I have often been asked to rename GoldenGate extracts. While this is not a difficult task, it should still be done correctly to avoid missing transactions.

Upgrading GoldenGate when the source is DB2 for z/OS is not quite the same exercise as upgrading a GoldenGate installation for Oracle.

Every time I work on database migrations with GoldenGate, I have the same talks with application teams about missing primary keys. Especially when it comes to LOB replication with GoldenGate.

The GoldenGate migration utility provided by Oracle allows you to quickly upgrade your classic architecture into GoldenGate 26ai with Microservices Architecture.

While migrating a GoldenGate classic architecture setup with the migration utility, I recently had the following OGG-12020 error: It is a very cryptic error at first glance, but let's try to…

When running the GoldenGate migration utility, which I presented in a previous blog post, you might encounter the following warning on USERID syntax: This is not really a surprise, since USERID…

Depending on the location of your GoldenGate trail files, you might have to use the convchk utility to relocate them before migrating to the Microservices Architecture.

With GoldenGate 19c and 21c Premier Support coming to an end in April 2026, time is ticking for many clients with old installations of GoldenGate.

Classic Extracts have been deprecated in GoldenGate 19c and shouldn't be part of your GoldenGate replications for a long time now.

At the moment, three versions of GoldenGate are still under Premier Support, but this will very soon change, with GoldenGate 19c and 21c coming out of Premier Support in April this year !

If you've ever had to deal with MongoDB after years (or even decades) of working with SQL, you've probably realized that querying JSON documents can sometimes be painful, to say the least.