Here is a question I asked yesterday - http://stackoverflow.com/questions/22180727/left-joining-two-views-is-slow. I got a good answer that helped me but I don't understand why the LEFT JOIN is so ...
My problem: I'm trying to compare to subsets of data within one table, and I've got two methods that partially work and one certainty that there's got to be a more correct way to do it. The idea ...
I have a moderate-sized database spread out over a few tables, the rough architecture is: Input Data (Data ID, Session ID and a few fields of statistical importance) Input File (Data ID and a blob) ...
I have two tables, a large (millions) table of Tickets for orders, and a small (hundreds of thousands) table for Invoices metadata on a subset of those tickets. The metadata is information about when ...
An application is writing into a database that follows an EAV structure, similar to this: CREATE TABLE item ( id INTEGER PRIMARY KEY, description TEXT ); CREATE TABLE item_attr ( item ...