BestTechVideos: Tag databases Videos

Railscast: Auto-Complete Association

scoundrel — Fri, 25 Apr 2008 01:00:19 GMT

Usually a select menu is used for setting a belongs_to association, but in this episode I will show you how to use a text field with auto completion.

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Browse the archive of posts filed under Databases, Development, Frameworks, Ruby, Screencasts, Ruby On Rails

How To Be Normal - A Guide For Developers

scoundrel — Thu, 17 Apr 2008 19:10:04 GMT

At some point in every software project involving a database it becomes necessary for the developers who created (or inherited) the project to step back and take a look at their database. Many projects have a database schema that has evolved over time, with columns added here and tables added there, increasing complexity and often adding redundancy. Super-tables grow with more and more columns making ALTERs slow and backups difficult.

In this session MySQL author and speaker Mike Hillyer will guide the audience through the principles of database normalization and review some common normalization scenarios encountered by many application developers.

Topics include:

What is normalization and what are its benefits?
What are the normal forms?
- First Normal Form
- Second Normal Form
- Third Normal Form
- And so on…
Normalization Scenarios
Relationships and Joins
How Much is Too Much?

This session is intended for a beginner to intermediate audience and is applicable to developers and administrators who deal with database design.

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Browse the archive of posts filed under Conferences, Databases, Development, Design, MySQL, Lectures, Computer Science

ThoughtWorks India - Day in the Life of an Iteration Manager

rajivmathew — Sat, 22 Mar 2008 05:02:13 GMT

What's it like to be a ThoughtWorker in India? Here, a ThoughtWorks Iteration Manager shares his experiences being part of the ThoughtWorks team.

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Browse the archive of posts filed under Companies, Databases, Lectures, Computer Science

Railscast: ActiveResource Basics

scoundrel — Sun, 09 Mar 2008 14:10:37 GMT

ActiveResource allows you to easily communicate between multiple Rails applications. See how in this episode.

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Browse the archive of posts filed under Databases, Development, Frameworks, Web Services, Ruby, Screencasts, Ruby On Rails

Easy Restful Rails

scoundrel — Wed, 27 Feb 2008 17:06:53 GMT

So, the idea came when I saw James Golick’s excelent resource_controller plugin. It does what I always thought should be part of Rails itself: it made Restful Controller as easy to use and understand as ActiveRecord originally does for Models and the database.

This screencast is a quick rendition to this plugin and how to use to leverage the power of Restful controller in your applications. This is one of those great ideas that – who knows – could find its place in the Rails Core one day, the same way Sexy Migrations did.

The concept is that now that we treat a controller’s action in a standardized way (through the abstraction of HTTP verbs) it could perfectly be refactored away from the day-to-day development. So, instead of scaffold creating a bunch of repeated code in every controller, why not have a bare-bone controller, totally empty, to start with?

Another clever idea was to create dynamic helpers for named routes in the views. That way you can move your views around, and even reuse them in different sections without ever copying & pasting several different named routes between them. This is particularly useful for polymorphic controllers and namespaced routes as I show in this video.

At the very end of the video I do a quick summary of what Restful Rails provides you in terms of routes organization, that could be helpful to some.

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MonetDB/X100: a (very) fast column-store

scoundrel — Wed, 27 Feb 2008 16:58:47 GMT

Google Tech Talks
January, 15 2008

ABSTRACT

MonetDB/X100 is a second-generation column-store prototyped at CWI, targeted
at analysis-heavy data management tasks such as data warehousing and information retrieval. In this overview talk I will outline the research challenges, novel techniques and results from this project. The ideal is to close the existing performance gap between hand-coded applicationas and database systems using architecture- onscious techniques, and by carefully exploiting the bandwith strengs of modern hardware (and avoiding its latency weaknesses).

The novel techniques presented encompass expressing relational operators as vector operations, lightweight compression on the border between CPU cache and RAM, sequential-access optimized database design and I/O bandwidth sharing.

Speaker: Peter Boncz

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Browse the archive of posts filed under Databases, Broadcasting, Techtalks, Google

Railscast: Action Caching

scoundrel — Wed, 27 Feb 2008 16:56:54 GMT

Action caching behaves much like page caching except it processes the controller filters. You can also make it conditional as seen in this episode.

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HyperDB and High Performance WordPress

scoundrel — Sun, 16 Dec 2007 05:10:11 GMT

What do you do when your blog goes from a thousand pageviews a day to a million?

Barry and Matt have worked with some of the most popular blogs in the world, and they know what it takes to make them hum. In the first part Matt will talk about HyperDB, the database class that is the magic behind WordPress.com, and how you can use it for your own sites. In the second part Barry will look at some real-world performance benchmarks of WP and some best practices on the systems level.

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Browse the archive of posts filed under Web 2.0, Conferences, Technologies, Databases, Development, Broadcasting, PHP, Lectures

Railscast: Migrations in Rails 2.0

scoundrel — Mon, 10 Dec 2007 22:11:00 GMT

Migrations are now sexy in Rails 2.0! In this episode we will take a look at these improvements and the related rake tasks.

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Railscast: Fixtures in Rails 2.0

scoundrel — Sun, 02 Dec 2007 20:32:14 GMT

In Rails 2.0, fixtures see many improvements which makes them much easier to manage. Watch this episode for details.

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