Following is a compilation of default currencies used by different countries in the world which I have collected by referring the links found under the References section. The information is organized as follows: Country Name – Name of the country Currency Name – Term used to denote the currency Currency Codes – ISO 4217 Code […]

It was quite a while ago since I released a new version of MyQuery, my Windows based query tool for MariaDB and MySQL. I did build a 3.5.3 version, but I decided not to do a public release of that. But now we have 3.5.4 ready, and there is some new shiny features in it. The main feature is that the dialog that you can use to inspect individual fields with, which pops up when you doubleclick (or now you can Right-click and select Show Menu) in a field, has been expanded.

To being with, you can use this to navigate the fields, so that you don't have to close this dialog and open it in the next field, instead there are navigational buttons in the Dialog.

But there is also some additions to the dialog itself. If you are using MariaDB and the Dynamic Columns feature, which is mostly used with the Cassandra Storage Engine but can be used with any blob data in any engine, then you can view these in the ShowData dialog, either …

Mats Kindahl of Oracle is lead developer of MySQL Fabric

MySQL Fabric is an integrated framework for managing farms of MySQL servers with support for both high-availability and sharding. Its development has been spearheaded by Mats Kindahl, senior principal software developer in MySQL at Oracle.

Mats is leading the MySQL Scaling and High-Availability effort covering the newly released MySQL Fabric and the MySQL Applier for Hadoop. He is also the architect and implementer of several features (mostly replication features), including the row-based replication available in 5.1 and the binary log group commit available in MySQL 5.6. Before starting MySQL he earned a doctoral degree in the area of automated verification of distributed systems and worked with implementation of C and C++ compilers.

He’ll be presenting at next month’s …

March 3, 2014 By Severalnines

Hybrid replication, i.e. combining Galera and asynchronous MySQL replication in the same setup, became much easier with MySQL 5.6 and GTID. Although it was fairly straightforward to replicate from a standalone MySQL server to a Galera Cluster, doing it the other way round (Galera → standalone MySQL) was a bit more challenging. At least until MySQL 5.6 and GTID. 

There are a few good reasons to attach an asynchronous slave to a Galera Cluster. For one, long-running reporting/OLAP type queries on a Galera node might slow down an entire cluster, if the reporting load is so intensive that the node has to spend considerable effort coping with it. So reporting queries can be sent to a standalone server, effectively isolating Galera from the reporting load. In a belts and suspenders approach, an …

Percona Server version 5.6.16-64.0 with TokuDB engine

Percona is glad to announce the first ALPHA release of Percona Server 5.6.16-64.0 with TokuDB engine on March 3rd, 2014. Downloads are available here and from the Percona Software Repositories.

Based on Percona Server 5.6.16-64.0 including all the features and bug fixes in it, and on TokuDB 7.1.5-rc.3, Percona Server 5.6.16-64.0-tokudb is the first ALPHA release in the Percona …

I re-read "The Soul of a new Machine" (Swedish translation "En Dators Födelse") by Tracy Kidder the other day and it still quite a marvelous book. It was a long time ago since I read it last and I have to admit this really made me feel old. And I admit: Yes, I worked with VAXen (yes, that is what pluralis of a VAX is, among us hackers from the days when being a "hacker" was a good thing. I used to be called Anders "Hackin'" Karlsson back then) and I worked with Data General machines and I have also worked as a Hardware Engineering back when working with a CPU was not necessarily something done in software and when if you didn't have enough bits in a register in a register in the CPU, you could add them yourself with some TTL chips piggy-backed onto the ones on the main board …

Demonstrate your expertise with MySQL 5.6, and improve your career prospects, by taking the new MySQL 5.6 certifications:

• Oracle Certified Professional MySQL 5.6 Database Administrator
• Oracle Certified Professional MySQL 5.6 Developer

These certifications give you a competitive advantage, by proving you have a skill set that is in demand, worldwide, while demonstrating your commitment to continuous learning.You can sign up now for these certifications via PearsonsVue.

To pass these certifications you need to have a good knowledge of the relevant areas of MySQL and significant hands-on …

A number of folks have asked me to create a post of a PostgreSQL installation on Windows. So, here is my step-by-step PostgreSQL 9.3 installation.

Download PostgreSQL Database

You can start the download of PostgreSQL from this site. It leads you to the EnterpriseDB site, where you can download the prepackaged software.

Install PostgreSQL 9.3 on Windows

These steps walk you through installing PostgreSQL and the the pgJDBC v9.3, psqlODBC (32 bit), and psqlODBC (64 bit) packages.

1. The first thing you need to do is launch the …

While user bug reports are the most important ones, there is a category of external reporters which I historically have a special interest in and great expectations for: entry-level testers. I was one, trained some, interviewed many, had a few hired, and have always wanted someone to wake them up and get going before it’s too late.

There is no secret that quality control is not as glamourous as other IT specialities, and there are no famous (or maybe any) student programs for testers. Usually people come into testing because it is deceptively open for newbies, planning to obtain a few points for a CV and switch either to development or to project management as soon as they can. Most do, a few stay.

It creates a vicious cycle. Since this is a well-known pattern, employers hire testers without experience not to teach …

“Many tools now exist to run database software without installing software. From vagrant boxes, to one click cloud install, to a cloud service that doesn’t require any installation, developer ease of use has always been a path to storage platform success.”–Brian Bulkowski.

The fifth interview in the “Big Data: three questions to “ series of interviews, is with Brian Bulkowski, Aerospike co-founder and CTO.

RVZ

Q1. What is your current product offering?

Brian Bulkowski: Aerospike is the first in-memory NoSQL database optimized for flash or solid state drives (SSDs).
In-memory for speed and NoSQL for scale. Our approach to memory is unique – we have built our own file system to access …