VoltDB 7 community @ Oracle Linux 6.8

What a great news in „VoltDBRIEF January-February 2017“! New version of VoltDB is out. VoltDB is a one of brightest jewells in my „I-want-to-use-and-learn“ list of database solutions. With no doubt we will hear about this product in near future. Let’s have a look on Community edition.
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PostgreSQL 9.5 First Impression

There are many ways how one can be impressed by software product. Size of package, company/community promotion, installer functions + user/friendly UI, etc. I like PostgreSQL, no doubt about it – so let’s check how is it packed by Enterprise DB in last release (9.5).

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PostgreSQL’s inspiring…

With no doubt PostgreSQL really can be „the World’s most advanced open-source database. At least, this database  inspired many developers to adjust it for their purposes. Tiny article, link collector 😉

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DB2 10.5.6 – db2val failing afer fresh install

That feeling you have brand new version. Very common setup, after install steps. And surprise!! db2val is yelling „discrepancies found“! 🙂

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Killing screen tearing (Manjaro 0.8.13 XFCE)

Getting rid of screen tearing seems like a neverending story in linux environment 😉
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DB2 – Transparent Data Encryption (DB2 10.5.5 on SLES12)

I was involved in software evaluation focused on TDE (Oracle, SQLServer, DB2) few months ago. I was really surprised that DB2 was lacking this feature within database package and it was needed to use another IBM product. With 10.5.5 version of DB2, this feature was added. Finally! 🙂

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Lightning MariaDB install (Manjaro openbox 0.8.11)

-a-

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Killing screen tearing (Manjaro 0.8.11 Cinnamon)

This recipe is working for much more wm than Cinnamon only. Put these lines into /etc/environment :

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Fastest exchange openjdk->jdk (Oracle Linux 6.6)

OpenJDK is slower but fits Oracle conditions for distributing well. Probably first thing you should perform on freshly installed distribution is to install Oracle JDK.

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TokuDB 7.5.3 (MySQL 5.5.40) on Oracle Linux 6.6

Fascinated by fractal trees? Astonished by TokuDB storage engine? Watching new trends where MySQL/MariaDB serves as baseline and competitive advantages are based on storage engines? Welcome! 🙂

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Killing screen tearing (Manjaro 0.8.11 KDE)

This bug/feature is one of the longest in a linux history. Shortly – Compiz and other managers are providing you great desktop effects. On the other hand you can’t see any movie without screen tearing. Another pathetic moments in a life of linux users 🙂

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Disable firewall+SELinux (CentOS 7 and similar…)

You know that feeling within testing where you need to virtualize at least one database server and you’re still facing connection issues? Call me piggie, but when I’m doing anything in a localhost realm, I’m skipping creating rules and always disable firewall and SELinux.

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Flac->mp3 in command line

1) Be sure you have installed flac and lame:

2) In a flac directory, run comand

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db2setup – invalid hostname in a first setup window

„The host name ‚myHost‘ is invalid. Ensure the host name resolves to a valid ip address. Specify a valid host name and rerun the command.“ = loopback is not associated with hostname. Solution =

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R and Oracle – connection via RJDBC (Debian 8 Jessie Beta2)

As R language is taken as one of the best analytics languages/tools in general, databases can‘ t be overlooked. Article is focused on very simple connection example for connecting R with Oracle database.

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