client side JSON document store

great tip for adding new columns to a big table in MySQL

Rake task to help you find places where you probably need db indexes in your rails app, and to generate a migration to easily add those indexes.

Seems like a great way to migrate legacy data from an old db into a new rails app's db. From the talk: http://github.com/mokolabs/legacy/tree/master

"Cassandra is a hybrid non-relational database in the same class as Google's BigTable. It is more featureful than a key/value store like Dynomite, but supports fewer query types than a document store like MongoDB."

rails plugin to dump db data yo yaml

"This rails plugin not only runs "EXPLAIN" before each of your select queries in development, but provides a small DIV in the rendered output of each page with the summary of query warnings that it analyzed."

an interesting read. nothing really new, but I especially like the commute to Pluto reference.