SQL JOINing a Table to Itself
Getting two sets of information from one table in a select statement often leads people to write subselects, but it really doesn't matter that this is the same table twice, we can just give it a new...
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A Successful OTN MySQL Developer Day in Paris
On Wednesday this week Oracle held its first MySQL Developer Day in France. The room was packed with close to 100 people eager to learn more about MySQL. We got great feedback from the attendees who...
View ArticleOurSQL Episode 84: Going to the Big Show
This week we give an overview of Percona Live and what we think are the highlights, including which sessions we recommend for beginners and which we cannot wait to see for ourselves. On Tuesday June...
View ArticleBest kept MySQLDump Secret
Many people use mysqldump –single-transaction to get consistent backup for their Innodb tables without making database read only. In most cases it works, but did you know there are some cases when you...
View ArticleSpeaking at POSSCON
I’m speaking at POSSCON in Columbia,SC next week (March 28). My talk will be about Open Source software Percona Produces – Percona Server, Percona Xtrabackup, Percona Toolkit, Percona XtraDB Cluster....
View ArticleHow FLUSH TABLES WITH READ LOCK works with Innodb Tables
Many backup tools including Percona Xtrabackup, MyLVMBackup and others use FLUSH TABLES WITH READ LOCK to temporary make MySQL read only. In many cases the period for which server has to be made read...
View ArticleWhy You Need to Understand Your Working Set Size
I guest-posted on Fusion-io’s blog about the database’s working set size and the interplay with fast Flash storage. It’s written from a MySQL point of view, but it’s applicable to many types of...
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Shinguz: Does InnoDB data compression help with short disk space?
Because we are a bit short off disk space on one of our servers I had the idea to try out the MySQL feature Data Compression for InnoDB. This feature is useful if you have tables with VARCHAR, BLOB or...
View ArticleDon't miss these Tungsten talks at MySQL Conference & Expo
Monday, April 10 MySQL Replication 101 by Giuseppe Maxia, 9:30 am -12:30 pm in Ballroom CTuesday, April 11 Building a Multi-master, Multi-region Database Infrastructure in Amazon EC2 by Edward...
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InnoDB data flush and write for dummy.
That is trying to explain myself a quite complicate process in few word/paragraphs, don’t expect anything special, this write start from one talk at the office, where I was drive in confusion by many...
View ArticleStory of success: MySQL Enterprise Backup (MEB) was successfully integrated...
Since version 3.6 MEB supports backups to tape through the SBT interface.The officially supported tool for such backups to tape is Oracle Secure Backup (OSB).But there are a lot of other Storage...
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mySQL Shards, Gearman, rabbitMQ, NodeJS, JSONP Push for Fault Tollerant...
Over the past few weeks, I have been tweaking my feed system to be truly real-time. The hypothesis is, if end users are pushed content without forcing them to refresh a page they will interact on the...
View ArticleSpeaking at RubyNation 2012
Wow, I completely forgot to advertise this. I’m speaking Saturday (tomorrow) at RubyNation, which is already well underway (I’m missing the first day, though). My topic is “Seven Things To Know About...
View Articlejust switched from wordpress to serendipity
Today I switched my blog from wordpress to serendipity. Even though Serendipity provides a smaller range of plugins and themes than wordpress ..PlanetMySQL Voting: Vote UP / Vote DOWN
View ArticleBook signing evening at MySQL user conference
There will be a book signing opportunity at the MySQL User Conference, more precisely at the Expo Hall Community Reception on Wednesday evening. You will be able to meet and talk to authors of great...
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Why you should care about IPv6 in MySQL
Since MySQL 5.5 it's possible to use IPv6, but why should you care?Since MySQL 5.5 you can configure MySQL to listen on an IPv6 address. The MySQL commandline utilities can connect to an IPv6 address....
View ArticleMore MariaDB after Percona Live Santa Clara
Right after Percona Live Santa Clara (which MariaDB is quite present for), its worth noting there are a few more events happening on Friday, April 13, 2012 at the Hyatt Regency Santa Clara. MariaDB...
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MySQL Cluster 7.2.5 available for download
The binary version for MySQL Cluster 7.2.5 has now been made available at http://www.mysql.com/downloads/cluster/ (GPL version) or https://support.oracle.com/ (commercial version). A description of...
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Database Firewalls from Oracle and GreenSQL
If you are not part of 36 percent(1) of respondents have taken steps to ensure your applications are not subject to SQL injection attacks, it would be worth your time to look at the Oracle Database...
View ArticleCommunity events around Percona Live MySQL Conference and Expo 2012
We’re very pleased with community support for Percona Live MySQL Conference and Expo. We’ve got wonderful speakers providing content of phenomenal session lineup for the conference this year. We have...
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