June 2008
Intermediate to advanced
986 pages
27h 8m
English
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Accessing a Database in Saxon
The Saxon XSLT processor provides a set of extension
elements that provide SQL functions. There are extension elements to
connect and disconnect from a database, to run a database query, and
to do updates, inserts, and deletes on database tables. To keep our
example simple, we’ll use <sql:connection> element to connect to
a database, then we’ll use <sql:query> to select items from the
database and <sql:close> to
close the connection.
Here’s the complete stylesheet:
<?xml version="1.0"?> <!-- saxon-sql.xsl --> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:sql="java:/net.sf.saxon.sql.SQLElementFactory" xmlns:saxon="http://saxon.sf.net/" extension-element-prefixes="saxon sql"> <xsl:output method="html"/> <xsl:template match="/"> <!-- Create the JDBC connection --> <xsl:variable name="connection" as="java:java.sql.Connection" xmlns:java="http://saxon.sf.net/java-type"> <sql:connect database="jdbc:derby://localhost:1527/books" driver="org.apache.derby.jdbc.ClientDriver" user="doug" password="x"/> </xsl:variable> <!-- Run the query --> <xsl:variable name="queryResults"> <sql:query connection="$connection” table="compbks" column="*" row-tag="tr" column-tag="td"/> </xsl:variable> <html> <head> <title>Computer books in our database</title> </head> <body style="font-family: sans-serif;"> <h1>Computer books in our database</h1> <p>Here are the <xsl:value-of select="count($queryResults/tr)"/> computer books we ...
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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.