Oracle LDAP Timeouts
Introduction, Setup You are using 2 or more LDAP servers for Oracle name resolution to be highly available? Do you kown what happens if an ldap server is down or not reachable? You probably expect...
View ArticleDDL Filtering in GoldenGate Extract and Replicat
When replicating data with GoldenGate, you often want DDL changes (table alterations, new tables, dropped indexes, etc.) to follow alongside DML. But replicating all DDL is sometimes dangerous...
View ArticleListing and Querying Oracle Enterprise Manager Metric Extensions
I recently wanted to work on Metric Extensions automation, and realized the task was a bit more complicated than I thought. My original idea was to look into the emcli verb list, but I was unlucky. In...
View ArticleSetup an LDAP server for Oracle naming on Enterprise Linux 9
Introduction To centralise Oracle naming resolution, you can use an LDAP server. You can use the commercial products from Oracle like Oracle Internet Directory (OID) or Oracle Universal Directory...
View ArticleTNS_ADMIN – which *.ora files Oracle will use
Introduction Oracle uses some configuration files (*.ora) related to the network. tnsnames.ora: A mapping of an alias name to a connect string for Oracle. A kind of “/etc/hosts” for Oracle databases...
View ArticleOracle Forms: Java Web Start or FSAL?
A customer recently asked me about the difference between Java Web Start and the Forms Standalone Launcher for running Oracle Forms applications. I found it a very good question. From the user’s...
View ArticleOracle GenAI – Ask EM – Configure Oracle AI Database Assitant
Now that I have got an Oracle Enterprise Manager 24ai deployed in the cloud and an agent installed and configured on a DB System, I’m ready to configure OEM AI assistant. In this blog, I would like to...
View ArticleOGG-02454 Trail Not Found in Checkpoint File When Migrating a Coordinated...
When migrating a Coordinated Replicat for a client, I faced a very specific OGG-02454 error that I wanted to share. When using the migration utility on a Classic Architecture Coordinated Replicat,...
View ArticleA great day at Dbvisit Partner Summit 2026 in Paris for oracle SE databases
I had the chance to participate yesterday to the Dbvisit Partner Summit 2026 in Paris. We had the opportunity to attend some great sessions, have excellent discussions about the product’s current...
View ArticleRename a GoldenGate Extract with the REST API
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. Doing this by hand is...
View ArticleThe GoldenGate REST API Python client is now on pip
In a previous post, I shared the OGGRestAPI Python client I built for the GoldenGate REST API. Since then, I kept using it on production deployments, fixing it and adding new features along the way....
View ArticleGoldenGate DB2 z/OS Upgrade Checklist
Upgrading GoldenGate when the source is DB2 for z/OS is not quite the same exercise as upgrading a GoldenGate installation for Oracle. Most of what I described in my generic blogs about planning a...
View ArticleRename a GoldenGate Extract Without 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. In this...
View ArticleFixing ORA-00904 on Oracle hidden columns during SSMA data migration
SSMA (SQL Server Migration Assistant) handles the whole Oracle-to-SQL Server move: it reads the source data dictionary, converts the schema, then generates a SELECT per table to pull the rows across....
View ArticleNGINX Secured Distribution Path with GoldenGate REST API
In a previous blog, I presented how to set up a distribution path between two GoldenGate deployments both secured with NGINX. The method I used there was purely through the Web UI. But GoldenGate also...
View ArticleGoldenGate 26ai out-of-place patching with Python
I already covered out-of-place patching from the web UI, but patching tasks should be automated, and clicking through the same screens for every deployment can get repetitive. Let’s do the exact same...
View ArticleChecking Long Running Transactions in GoldenGate
When doing complex operations with GoldenGate, checking for long running transactions is mandatory if you don’t want to miss transactions. Let’s look at two ways of retrieving such information, first...
View ArticleDB2 SQL1598N Licensing Error When Upgrading GoldenGate
While upgrading GoldenGate to 26ai for a DB2 z/OS source, I had to update the IBM Data Server Driver for ODBC and CLI (CLI Driver, in short) alongside it. Since I realized that DB2 driver know-how was...
View ArticleGoldenGate Extract Abending on NFS Trail: OGG-02897 / OGG-01668 Input/Output...
While working on a client’s GoldenGate 26ai environment, I ran into a NFS-related replication issue that could have been serious, had it happened in production. Here is what happened and how the issue...
View ArticleOracle: Standard Edition 2 available with 23.26.3.?
When downloading Release Update 23.26.3., I could see this: As you can see in the Product info it also has “Oracle Server – Standard Edition”. However, I haven’t found anything official yet. I tried...
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