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ORM is an anti-pattern
ORM looks great early in a project but breaks down as complexity grows, forcing you to learn SQL anyway. Relations aren't objects. Either use NoSQL for object-like data or write a model layer with real SQL. ORM's abstraction is leaky, its efficiency poor, and the alternatives are better.
Introducing schema.org: Search engines come together for a richer web
Insights from Googlers into our products, technology, and the Google culture
1 Database Containing 35,000,000 Google Profiles. Implications?
UPDATE 2012-02-16: raver1975 released a SQL database w/35M Google Profiles as .torrent on The Pirate Bay. UPDATE 2011-06-10: Central question in the Google discussion is whether mass-aggregation of profile data…
MySQL Text vs. Varchar Performance
Starting with MySQL 5.0.3, the maximum field length for VARCHAR fields was increased from 255 characters to 65,535 characters. This is good news, as VARCHAR fields, as opposed to TEXT fields, are stored in-row for the MyISAM storage engine (InnoDB has different characteristics). TEXT and BLOB fields are not stored…
Visualizing Time with the Infinity Hour Chart
This is another experiment in visualizing 24-hour cyclical data. My last post explored a method of linear representation (the Double Time Bar Chart). Linear representations have problems when it comes to showing the cyclical nature of time data (ie there is no start or end of a 24 hour cycle). Inspiration When trying…
Machine Learning: A Love Story
The video from my keynote at Strange Loop 2010 is up! You can watch the video here: Machine Learning: A Love Story The original abstract: Machine learning has come a long way in recent years — from…
Copy-on-write B-tree finally beaten.
Copy-on-write B-tree finally beaten by Andy Twigg, Andrew Byde, Grzegorz Mi?o´s, Tim Moreton, John Wilkesy and Tom Wilkie.
The Little MongoDB Book available on GitHub
Karl Seguin's Blog - A mix of coding and creative writing
Hi My Name is John…and I am addicted to analytics
…and I am addicted to analytics. It all started when I was a wee lad. I quite enjoyed playing Tecmo NBA Basketball, among other games. One day, while…
Accounting for Computer Scientists
Every educated person really ought to have a basic understanding of accounting. Just like maths, science, programming, music, literature, history, etc., it’s one of those things which helps you make sense of the world. Although dealing with money is not much fun, it’s an unavoidable part of life, so you might as well…