XQuery

XQuery Intro

Attention is paid to the syntax of XQuery, the XQuery specification and the parts of XQuery.

XML Vocabularies

Also the relationships of XQuery with other XML vocabularies such as XPath, XSLT and XML Schema are discussed.

XQuery Data Types and Expressions

Furthermore the data types, built-in functions of XQuery and the different XQuery expressions are discussed.

Flower Expression

The so called flower expressions which are characteristic for XQuery are treated in detail.

Joins

Finally attention is paid to some more advanced applications of XQuery like joins, the use of XQuery in combination with other technologies and for the accessing of relational data.

Audience Course XQuery

The course XQuery is designed for developers who wish to apply XQuery in practice for the selection of XML data.

Prerequisites Course XQuery

To participate in this course basic knowledge of XML and HTML syntax is required. Experience with programming and Structured Query Language (SQL) is beneficial for a good understanding.

Realization Training XQuery

The theory is discussed on the basis of presentation slides. Demos are used to clarify the theory. The theory is interspersed with hands-on exercises. Usage is made of modern XQuery tools and the course material is in English. The course times are from 9.30 up and to 16.30.

Certification XQuery

After successful completion of the course, participants receive an official XQuery certificate.

Modules

Module 1 : XQuery Introduction

• What is XQuery?
• XQuery Motivation
• XML versus Relational Model
• Requirements Query Language
• Three Parts of XQuery
• XQuery Language Characteristics
• Types of Queries
• Where is XQuery used?
• XQuery's Position
• XQuery and Other Technologies
• XQuery Specifications

Module 2 : XQuery Syntax

• Basic Syntax Rules
• XQuery Functions
• Structure of an XQuery Module
• XQuery Expressions
• Path Expressions
• Predicates
• Element Constructors
• Other Query Expressions
• FLWR Expressions
• Conditional Expressions
• XQuery Comparisons

Module 3 : XPath Node Selection

• XPath Expressions
• XPath Data Types
• XPath Context
• Peer Axis Types
• Descendent Axis Types
• Ancestor Axis Types
• Location Path Syntax
• Predicates
• For Expressions
• Quantified Expressions
• Conditional Expressions

Module 4 : XQuery Data Types

• XPath Data Models
• Infoset and PSVI
• Three Building Blocks
• Items
• Atomic Types and Values
• XQuery Type Hierarchy
• XML Schema Types
• String Types
• Date and Time Types
• Numeric Types
• Binary Data Types

Module 5 : Joins

• Expressing Joins
• Constructing Nodes
• FLWR Expressions
• For versus Let
• Node Generation
• Processing Instructions
• Element Constructors
• Attribute Constructors
• Text Constructors
• Other Constructors
• Sample Queries

Module 6 : Functions and Operators

• XPath Functions
• XQuery Functions
• Regular Expressions
• Enhanced String Functions
• Functions for Sequences
• XPath Operators
• XQuery Operators
• Comparison Operators
• Types Issues
• Constructor Functions
• User Defined Functions

Module 7 : Advanced Concepts

• Library Modules
• Global Variables
• Recursive Functions
• Strong Typing
• XML Schema Validation
• String Search
• Queries using Namespaces
• Listing Namespaces
• Listing Target URI's
• Recursive Parts Explosion
• Access to Relational Data