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Hello World is the most beautiful phrase somedays....

mysql> CREATE TABLE `a` (
-> `a` text
-> ) ENGINE=TABLE_FUNCTIONS DEFAULT CHARSET=latin1 CONNECTION='/ usr/lib/libhello.so' ;
Query OK, 0 rows affected (0.04 sec)

mysql> select * from a;
+--------------+
| a |
+--------------+
| Hello World! |
| Hello World! |
+--------------+
2 rows in set (0.02 sec)

mysql>

How to monitor MySQL status and variables with innotop

This is one in a series of articles on how to use innotop, a MySQL and InnoDB monitor. In this article I'll explain how innotop can make it much easier to collect useful information from SHOW STATUS and SHOW VARIABLES into one place. There are three modes in innotop that do this in different ways, so one of them may meet your needs.

Dealing with failure - the key to scaleout

Scaling Patterns This is a translation of a german language article I wrote two weeks ago for my german language blog.

In 2004, when I was still working for web.de, I gave a little talk on Scaleout on Linuxtag. Even back then one major message of the talk was "Every read problem is a cache problem" and "Every write problem is a problem of distribution and batching":

To scale, you have to partition your application into smaller subsystems and …

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Pride

I’ve recently completed a contract and I’ve been in discussions with agents and other employers for further work. Having had one of the worse experiences in my previous work, I’ve been extra careful to ensure what I’m told at the interview/meeting stage is indeed true and accurate (in my last case it was not). I’ve also not made the assumption that an organisation that is dependent on software has placed a certain level of value on what’s in place. (in my last case I did, simply due to the size of the organisation and volume of business).

So, when being asked by people what I’m seeking, outside of the technical skills and compendencies, I’m seeking an organisation that places value on it’s existing software, it’s software quality, it’s software improvement and most importantly it’s software developers. It was unfortunate that for an organisation that lived in software, and would not survive long (especially at …

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Yet Another Partitioning Article?

The article that Peter Gulutzan and I wrote a couple of weeks ago is now online:

MySQL 5.1 New Features: MySQL Partitions

Here’s a brief outline:

  • A Grammar Description That’s Expressed Differently From The Manual
    • Partitioning Types
    • Creating Partitioned Tables
    • Partitioning Keys, Primary Keys, and Unique Keys
    • Altering Partitioning Tables
    • Performance Considerations
  • Advantages of Partitioning
    • Partition Pruning
    • Maintenance of Big Tables
  • Doing It With Dates And Times
  • Some Simple Speed Tests
  • Comparison With Other Database Systems
  • Examples:
    • Creating a Table With …
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How to monitor MySQL status and variables with innotop

This is one in a series of articles on how to use innotop, a MySQL and InnoDB monitor. In this article I’ll explain how innotop can make it much easier to collect useful information from SHOW STATUS and SHOW VARIABLES into one place. There are three modes in innotop that do this in different ways, so one of them may meet your needs. Note: VividCortex is the startup I founded in 2012.

mysqld restarted: MyISAM tables crashing frequently
Moving Pentaho Sample Data to MySQL

MySQL has been one of the most popular databases amongst the Pentaho community. We receive questions and comments regularly about setting up and writing solutions for Pentaho on MySQL, which tells me people are putting MySQL to work in the business intelligence space. These questions were the catalyst for our Tech Tips, a collection of very useful how-to's for the Pentaho platform and Pentaho tools.

Today, I published a short tech tip regarding how to move the Pentaho sample data from HSQLDb to MySQL. Not rocket science, yet definitely made much easier with a Kettle transformation donated by Nic Guzaldo - thanks again Nic! Check it out, it's a good example of moving data with Kettle and also is a great utility tool to stick in your Pentaho toolbox. …

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dealnews.com is hiring

From our jobs page:

As a dealnews web developer, you will help maintain our current stable of deal and price-tracking web sites, and build new features and new web sites as we continue to grow. You’ll be part of a small, fast-moving team of developers that are involved at every stage of product development, from concept to rollout.

We use Gentoo, Apache, PHP and MySQL.   While that does not need to be your expertise, it is a plus.  We have a little Perl and Python thrown in as well.  You will need to code on a non-Windows system as we run our development environment on our local machines.  Currently, we all use Macs.

A big plus, however, is disc golf.  We play weekly as an um, team building excercise. Yeah, team …

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MySQL/PHP Problems

Problem 1 in the article at IBM developerWorks kind of rub me the wrong way.

1. Using MySQL directly

Why not? How is the second code example in that post superior to the first? What I see is that the first example, that uses mysql_* directly, is more readable. The second snippet is a jumbled mess.

The article recommends using PEAR::DB. Is PEAR::DB even PHP5 ready? I don’t know, I don’t use it. The author could have at least used PDO. Still slower, but not as bad and is the future of PHP database abstraction IMO.

He uses a prepared statement to do the select. First, I have tested and I know is slower for MySQL. Second, it is not the end all be all of stopping cross site scripting that a lot of people believe it to be. You can only pass certain value parts of certain …

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