December 1999
Intermediate to advanced
992 pages
22h 3m
English
Content preview from XML Unleashed
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Requirements of a Query Language
Why Have an XML Query Language?
XML documents are structured documents that can be used for data storage or as traditional documents. Some are highly structured, with several levels of nesting and a rigid hierarchy. Others contain little more than a few primary headings. In any case, when an XML document is used for data, you need to access that data. In order to do that across several different platforms, and to maintain the promise of XML as a truly interoperable language, you need a consistent syntax to query that data in all types of applications.
XML as a Data Store
The obvious analog of XQL is SQL. To understand why XQL should be different from SQL, a brief summary of the differences between databases ...
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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.