October 2003
Intermediate to advanced
1072 pages
24h 21m
English
Content preview from Guru's Guide to SQL Server Architecture and Internals, The
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Template Queries
A safer and more widely used technique for retrieving data over HTTP is to use server-side XML templates that encapsulate Transact-SQL queries. Because these templates are stored on the Web server and referenced via a virtual name, the end users never see the source code. The templates are XML documents based on the XML-SQL namespace and function as a mechanism for translating a URL into a query that SQL Server can process. As with plain URL queries, results from template queries are returned as either XML or HTML.
Listing 18.34 shows a simple XML query template.
Listing 18.34.
<?xml version='1.0' ?>
<CustomerList xmlns:sql='urn:schemas-microsoft-com:xml-sql'> <sql:query> SELECT CustomerId, CompanyName FROM Customers FOR XML ... |
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