All articles

ORA-32635: not a single cell reference predicate

By Franck Pachot . I spent 30 minutes to try to understand this error with a query that I’ve run in many environments for years. So if you google it you may arrive here and the solution may be(…)

Adding nmon to Oracle OSWatcher

nmon (nmon is short for Nigel’s performance Monitor for Linux on POWER, x86, x86_64, Mainframe & now ARM (Raspberry Pi)) is a nice tool to monitor a Linux system. Originally it came from the AIX-platform, where it is very(…)

PostgreSQL 14: LZ4 compression for TOAST

In PostgreSQL a row or tuple can not span multiple pages (a page is typically 8kB), but of course you can store larger rows and PostgreSQL brakes and compresses these rows into smaller chunks by using a technique called(…)

Swiss Cyber Security Days (SCSD)

The Swiss Cyber Security Days (SCSD) took place on March 10 and 11, 2021 The largest event in Switzerland entirely dedicated to cyber security took place on March 10 and 11, in a 100% digital form.

Copy or Migrate a SSISDB environment 2.0

Based on the blog “Copy or Migrate a SSISDB environment” of my colleague Christophe, I create a new one named 2.0. In the precedent script, you need to give the folder name and environment name and he(…)

Foreign Keys in MySQL, SQL, NoSQL, NewSQL

By Franck Pachot . In the NoSQL times, it was common to hear thinks like “SQL is bad”, “joins are bad”, “foreign keys are bad”. Just because people didn’t know how to use them, or they were running on(…)

Oracle – testing resource manager plans?

By Franck Pachot . I never remember that in order to use instance caging you need to set a Resource Manager Plan but don’t need to set CPU_COUNT explicitly (was it the case in previous versions?). Here is how(…)

SQL Server – PolyBase Services when listening on all IP is disabled

Introduction You will find a lot of blogs explaining how to install the PolyBase feature with a SQL Server database instance. You will also learn how to configure it and how to use it in these blogs. But I could(…)

A VPC is a private cloud in a public cloud

By Franck Pachot . If you are surprised that the first thing you do in a Public Cloud is creating a Virtual Private Cloud, this post is for you. This is a beginner level post. And if you are(…)

How to migrate Oracle Reports to Oracle BI Publisher ?

According to the Oracle Lifetime Support Policy , Oracle is not planning any functional enhancements for Oracle Reports in its terminal release, or any subsequent releases. Oracle Fusion Middleware 12cR2 (12.2.1.3.0) will be Oracle Reports terminal release. Oracle Report(…)