At a customer site, I've recently encountered a report where a programmer needed to count quite a bit of stuff from a single table. The counts all differed in the way they used specific predicates. The report looked roughly like this (as always, I'm using the Sakila database for illustration): -- Total number of films … Continue reading How to Calculate Multiple Aggregate Functions in a Single Query
Best Practices and Lessons Learned from Writing Awesome Java and SQL Code. Get some hands-on insight on what's behind developing jOOQ.