XQuery Whitepapers

The following white papers (reports) have been added to our website to explain new developments concerning XQuery. These reports include an explanation of the new development, and are here to help educate you about XQuery and its services.

How DataDirect XQuery Helps the Insurance Industry Deal with ACORD Standards
Learn how DataDirect XQuery is being used to help the insurance industry develop and manage applications that must adhere to ACORD (Association for Cooperative Operations Research and Development) standards for the insurance, reinsurance, and related financial services industries.

Updating Relational Data with DataDirect XQuery
DataDirect XQuery allows you to update relational data from within XQuery. This is useful for all XQuery applications that need to insert, update, or delete data in relational tables. The addition of update functionality makes DataDirect XQuery 3.0 very well-suited for ETL application scenarios, where it provides efficient XML shredding and transparent relational updates.

Querying XML Columns with DataDirect XQuery
Increasingly, XML is stored in relational databases as structured XML. Some applications will continue to shred XML into a relational format or store XML as CLOB values. Other applications can now take advantage of relational databases that support a native XML data type to represent an XML document or XML document fragment. This paper shows how you can use DataDirect XQuery to query XML stored as character data and query XML stored as XML.

Resolving fn:collection() Errors
No standard way exists to access a relational table in XQuery, so each XQuery implementation defines its own way to do this. DataDirect XQuery uses fn:collection() to access a relational table. This paper provides guidelines to help you troubleshoot and correct common causes of errors that occur when using fn:collection() in an XQuery query.

XQuery Industry Study
XQuery is a new standards-based XML technology from the W3C that provides an easy way to query, transform, and integrate XML data. There are a lot of promising indicators which would lead one to believe in the XQuery revolution, yet to date, no comprehensive XQuery industry study has been published to challenge the statistical validity of such claims, until now.

Update on XQJ: XQuery API for Java
XQJ enables a Java application to submit XQuery queries to an XML data source and process the results. XQJ is analogous to JDBC, which in conventional SQL environments, a Java application uses to connect to a database, issue SQL queries, and obtain result sets. So, XQJ is to XQuery what JDBC is to SQL.