Ben Matasar

Rails migrations, SQLite3, and largish data

For the Bus Project, I'm building a walklist app and I'm using rails. I decided to build things using rails migrations, and I'm finding them painfully slow with my SQLite3 database that has ~400k voters in it and ~1200 block captains. Overall though, it's good to be writing ruby again.

Some things to keep in mind when dealing with large databases and SQLite3:

• Wrap things into transactions. SQLite is very slow at doing individual inserts, because it locks and unlocks the file too much.
• Prepared SQL statements are much faster, of course.
• I found ActiveRecord hopelessly slow, so I had to drop into the sqlite3-ruby gem. The FAQ is very helpful.

tech | link | 2006/Mar | comments (0)

Go Bears

The game is just begininng between Cal and NC State. This is the first time Cal has been in the tournament in a few years, and they're a #7 seed. Go Bears! (secret motive for this blog post was to test my first emacs lisp function, add-post-date).

UPDATE: That could've gone better.

life | link | 2006/Mar | comments (0)

Back in the blogging saddle.

It's been ages since I had a blog, but I now have enough projects and enough of a sense of self importance that it's time to go for it.

I converted the baseball-databank data to SQLite format for some other stuff I'm working on, and it's here: SQLite baseball-databank.

baseball | link | 2006/Mar | comments (0)