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>
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.
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 …
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 …
[Read more]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 …
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.
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. …
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 …
[Read more]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 …
[Read more]