January 2009
Intermediate to advanced
400 pages
14h 15m
English
Content preview from NHibernate in ActionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 7. Retrieving objects efficiently
This chapter covers
- NHibernate query features
- HQL, criteria, and native SQL
- Advanced, reporting, and dynamic queries
- Runtime fetching and query optimization
Queries are the most interesting part of writing good data access code. A complex query may require a long time to get right, and its impact on the performance of an application can be tremendous. As with regular SQL, writing NHibernate queries becomes much easier with experience.
If you’ve been using handwritten SQL for a number of years, you may be concerned that ORM will take away some of the expressiveness and flexibility you’re used to. This is seldom the case; NHibernate’s powerful query facilities allow you to do almost anything you ...
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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.