Each call to ActiveRecord now logs all of its activity to STDOUT (e.g., the console), via your custom logger instance. The tale it tells is revealing, and reassuring: scoped creates do not, in fact, load the entire collection anymore. Yay! (One caveat: be sure to set up your logger first, before doing anything else, otherwise the default logger will get cached with no simple way to uncache it.)

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# Introduction # PRAGMA settings # Transactions # Indexes # Optimizing queries # Moving code into SQL # User functions # Callback functions # Reducing database file size # Reducing database load time # Reducing SQL query parse time # Hacking the source # Using the btree interface # Multiple threads # Operating system issues

Visual Database Explorer in Ruby

As a developer, you've probably, at some unfortunate point in your life (possibly several points, actually), been handed an Excel file that has been crammed full of "data" by someone in marketing and told to "do something with it." Columns probably didn't line up, and a thousand different fonts were used. Every feature of Excel was probably abused and abused again in order to avoid having to use an actual database application for storage of the data. Of course, it's up to you to make sense of the layout, and they could just give a bleepity-bleep about what a pain in the ass it is to suck weird data out of Excel and "do something with it" when little or (more often) no thought has been given to possibly making the data consistent or, dare I say, orderly. To this end, I've put together another art project. This time, what you will see unfold before your peepers is a process of discovery - My thoughts on how these files are created.