HCC compression with DIRECT INSERT and without it

I was invited to test a compression on ZFS storage when datafiles were placed on dnfs. And now I can prove, that the percent of compression really depends on the...

JVM memory leak

Using Oracle Cloud Control 12C to Analyse a Memory Leak Problem 1. Introduction The aim of this post is to use the Oracle Cloud Control 12C to find the root...

DB locking issue

Oracle database - analyzing a deadlock [ORA-00060] As a weblogic administrator the interaction among the application server and the database is often strong. In fact, according to Confio Software (2013)...

DB Adapter - Native sequencing, SequencePreallocationSize

Here are some DB adapter tips regarding use of native sequencing. In cases where you want to use the database adapter for inserts, you may want to use native sequencing...

REST Adapter article in OTech

Read my article about REST adapter in OTech Magazine. It describes how to use some public REST data available in Norway: OTech Article

Why does DB-adapter return duplicate rows?

Here are some DB adapter tips regarding duplicate rows. The DB Adapter has some nice features, but sometimes you can get fooled. One of my colleagues experiences this one day....

File metro-default.xml not found on Weblogic 12.1.3

After upgrading from WebLogic 12.1.2 to 12.1.3 several of our JAX-WS enabled apps broke with the following message: “Default configuration file [ metro-default.xml ] was not found”. Alrighty then, so...