Learn XQUERY with Real Code Examples

Start with XPath navigation

Learn FLWOR expressions

Practice transformations

Explore modules and functions

Optimize with XML database indexing

Week 1: XPath basics

Week 2: FLWOR expressions

Week 3: XML transformations

Week 4: Modules and reusable functions

Week 5: XML database optimization

What is XQuery and why is it used?

Explain FLWOR expressions.

How does XPath integrate with XQuery?

What are sequences in XQuery?

How do you optimize XQuery for XML databases?

/library/book/title - XPath query

for $b in /books/book return $b/title

<new>{/old/text()}</new> - XML construction

where $x/@id = '123' - attribute filter

order by $item/price - FLWOR ordering

XQuery by Priscilla Walmsley

Professional XML Databases

XQuery Functions and Operators Guide

MarkLogic Developer’s Handbook

XPath and XQuery Pocket Reference

XQuery and XPath Basics

FLWOR Expressions Deep Dive

XML Transformations with XQuery

RESTXQ API Development

Modular XQuery Programming

W3C XQuery Specification

BaseX Documentation

eXist-db Developer Guides

Stack Overflow XQuery tag

BaseX Community

eXist-db Forums

MarkLogic Community

XML Dev Mailing List

W3C community

XML database communities

Stack Overflow XQuery tag

XML-focused developer forums

Vendor-specific support (BaseX, MarkLogic)