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Working with multipass, a VM manager

Introduction What if you need quickly to launch virtual machine instances running Ubuntu for development and testing purposes. Multipass from Canonical can be the right tool for this. You can even customize the instances during launch by using Cloud-init in(…)

Should CPU-intensive logic be done in the DB or in application server?

By Franck Pachot . Should CPU-intensive logic be done in the DB or in application server? Here was a answer found in Reddit: Comment byu/CacheMeUp from discussion inPostgreSQL Reducing the(…)

Oracle Data Integrator Cloud

Data and applications integration is always a technical challenge for most of the companies. All data integration tool ensures that information is timely, accurate, and consistent across complex systems. Oracle Data Integrator (ODI) is different than traditional data integration tools(…)

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(…)