March 2007
Intermediate to advanced
326 pages
9h 3m
English
Content preview from Release It!
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9.7 Handcrafted SQL
Essentially every application today must work with a relational database. Many applications rely on object/relational mapping to bridge the gap. Whether you’re using Ruby on Rails’ ActiveRecord, Hibernate, or any of the three EJB persistence models, some form of object/relational mapping is in play. ORM packages generate very predictable, repetitive SQL. Predictable access patterns of SQL are good for capacity, because a competent DBA can tune the database to make those queries perform well.[71]
Each of these ORM layers allows the developer to get down to direct SQL access in one way or another. Hibernate, for example, allows ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.