Want to easily find out about the MySQL sessions taking place at Oracle OpenWorld? Check out our Focus on MySQL @ OpenWorld page. Conference sessions, Tutorials, Hands-on Labs, Birds-of-a- Feather as well as the MySQL General Session are listed with their time and location.

Not registered for Oracle OpenWorld yet? Do it Now! You'll learn about the latest MySQL developments and plans, meet the engineers and get all your questions answered. You'll get the chance to network with you peers and learn best practices from MySQL power users. And, you'll get access to the extensive Oracle OpenWorld content and programs. Don't miss this once a year …

I have been fired for speaking out about the GPL and MariaDB actions that have caused great harm to our ecosystem.

It has been pointed out that I have a non-compete agreement. None of my tools compete with MariaDB and I have no non-public knowledge of MariaDB technology. GPLScale remains free software under the GNU GPL license and it is my right to fork a github repo. I am not paid to work on GPLScale and I don't intend to get paid to maintain it by anyone. All my projects are labors of love.


Who wants to hire me? I'm dedicated, honest, open, and I have integrity. I'm willing to risk everything for what I believe in.

Email me at:
greenlion at gmail dot com


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I have been a proponent of GPL for a long time, and I don't need publicity.
…

I have been fired for speaking out about the GPL and MariaDB actions that have caused great harm to our ecosystem.

It has been pointed out that I have a non-compete agreement. None of my tools compete with MariaDB and I have no non-public knowledge of MariaDB technology. GPLScale remains free software under the GNU GPL license and it is my right to fork a github repo. I am not paid to work on GPLScale and I don't intend to get paid to maintain it by anyone. All my projects are labors of love.


Who wants to hire me? I'm dedicated, honest, open, and I have integrity. I'm willing to risk everything for what I believe in.

Email me at:
greenlion at gmail dot com


----


I have been a proponent of GPL for a long time, and I don't need publicity.
…

When I wrote this blog about “bash on Windows” a few days ago I omitted one issue, that I already knew about. This is because it needs some elaboration that did not ‘fit in’ the previous blog. So I will do it here.

It is about Unicode. Unicode always was a pain in “cmd” and with the arrival of “bash” in Windows, this has become more significant and important. Actually on any recent *nix platform user will not do anything to make Unicode work ‘out of the box’ in the console and display all or almost all scripts (though I have noticed that the completeness of the ‘monospace’ font mostly used in the Linux console varies between Linux distros – with …

When I wrote this blog about “bash on Windows” a few days ago I omitted one issue, that I already knew about. This is because it needs some elaboration that did not ‘fit in’ the previous blog. So I will do it here.

It is about Unicode. Unicode always was a pain in “cmd” and with the arrival of “bash” in Windows, this has become more significant and important. Actually on any recent *nix platform user will not do anything to make Unicode work ‘out of the box’ in the console and display all or almost all scripts (though I have noticed that the completeness of the ‘monospace’ font mostly used in the Linux console varies between Linux distros – …

DBMS client applications need to store SQL query results in local memory or local files. The format is flat and the fields are ordered -- that's "serialization". The most important serializer format uses human-readable markup, like
[start of field] [value] [end of field]
and the important ones in the MySQL/MariaDB world are CSV (what you get with SELECT ... INTO OUTFILE or LOAD INFILE), XML (what you get with --xml or LOAD XML), and JSON (for which there are various solutions if you don't use MySQL 5.7).

The less important serializer format uses length, like
[length of value] [value]
and this, although it has the silly name "binary …

This blog discusses how to find and address badly written queries using ProxySQL.

All of us are very good in writing good queries. We know this to always be true!

But sometimes a bad query escapes our control and hits our database. There is the new guy, the probie, who just joined the company and is writing all his code using SELECT * instead of WHERE. We’ve told him “STOP” millions of times, but he refuses to listen. Or a there is a new code injection, and it will take developers some time to fix and isolate the part of the code that is sending killing queries to our database.

The above are true stories; things that happen every day in at least few environments.

Isolating the bad query isn’t the main problem: that is something that we can do very fast. The issue is identifying the code that is generating the query, and disabling that code without killing the whole application.

That …

I just created the Budapest MySQL Meetup group. I hope there will be interest for that, the first event is under organising. Check it if you are near Budapest!

Percona announces the GA release of Percona Server 5.7.14-7 on August 23, 2016. Download the latest version from the Percona web site or the Percona Software Repositories.

Based on MySQL 5.7.14, including all the bug fixes in it, Percona Server 5.7.14-7 is the current GA release in the Percona Server 5.7 series. Percona’s provides completely open-source and free software. Find release details in the …

Introduction

This is part two of a five part blog series to explore InnoDB internals by looking at the related tunable system variables. In part one we covered variables that had the greatest impact on memory, and in this instalment we will cover the variables that have the greatest impact on the file structure of InnoDB as well as how data is written to logs, which can have a large impact on transaction commit overhead. Originally I was considering putting all the I/O related InnoDB related variable in one post, however that’s a lot of ground to cover. Instead you can look forward to an upcoming instalment of this blog series that will cover I/O as it relates to table data.

Before we begin, I would like to emphasize something that was written in part one of this blog post series.

“I should note that while tuning recommendations are provided, this objective of this blog post series was NOT meant to be a tuning …