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This document summarizes key concepts related to XML database systems. It discusses the structure and syntax of XML documents, including elements, tags, attributes, and nesting. It also describes XML schemas like DTDs that constrain the structure and content of XML data. The document compares XML to relational data and covers storing and querying XML in databases.

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Chapter 10: XML Database System Concepts ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use
XML ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.2 Database System Concepts - 5 th Edition, Aug 22, 2005.
Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.3 Database System Concepts - 5 th Edition, Aug 22, 2005.
XML Introduction (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.4 Database System Concepts - 5 th Edition, Aug 22, 2005.
XML: Motivation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.5 Database System Concepts - 5 th Edition, Aug 22, 2005.
XML Motivation (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.6 Database System Concepts - 5 th Edition, Aug 22, 2005.
Comparison with Relational Data ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.7 Database System Concepts - 5 th Edition, Aug 22, 2005.
Structure of XML Data ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.8 Database System Concepts - 5 th Edition, Aug 22, 2005.
Example of Nested Elements ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.9 Database System Concepts - 5 th Edition, Aug 22, 2005.
Motivation for Nesting ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.10 Database System Concepts - 5 th Edition, Aug 22, 2005.
Structure of XML Data (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.11 Database System Concepts - 5 th Edition, Aug 22, 2005.
Attributes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.12 Database System Concepts - 5 th Edition, Aug 22, 2005.
Attributes vs. Subelements ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.13 Database System Concepts - 5 th Edition, Aug 22, 2005.
Namespaces ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.14 Database System Concepts - 5 th Edition, Aug 22, 2005.
More on XML Syntax ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.15 Database System Concepts - 5 th Edition, Aug 22, 2005.
XML Document Schema ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.16 Database System Concepts - 5 th Edition, Aug 22, 2005.
Document Type Definition (DTD) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.17 Database System Concepts - 5 th Edition, Aug 22, 2005.
Element Specification in DTD ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.18 Database System Concepts - 5 th Edition, Aug 22, 2005.
Bank DTD ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.19 Database System Concepts - 5 th Edition, Aug 22, 2005.
Attribute Specification in DTD ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.20 Database System Concepts - 5 th Edition, Aug 22, 2005.
IDs and IDREFs ,[object Object],[object Object],[object Object],[object Object],[object Object],10.21 Database System Concepts - 5 th Edition, Aug 22, 2005.
Bank DTD with Attributes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.22 Database System Concepts - 5 th Edition, Aug 22, 2005.
XML data with ID and IDREF attributes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.23 Database System Concepts - 5 th Edition, Aug 22, 2005.
Limitations of DTDs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.24 Database System Concepts - 5 th Edition, Aug 22, 2005.
XML Schema ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.25 Database System Concepts - 5 th Edition, Aug 22, 2005.
XML Schema Version of Bank DTD ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.26 Database System Concepts - 5 th Edition, Aug 22, 2005.
XML Schema Version of Bank DTD ,[object Object],[object Object],[object Object],[object Object],10.27 Database System Concepts - 5 th Edition, Aug 22, 2005.
More features of XML Schema ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.28 Database System Concepts - 5 th Edition, Aug 22, 2005.
Querying and Transforming XML Data ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.29 Database System Concepts - 5 th Edition, Aug 22, 2005.
Tree Model of XML Data ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.30 Database System Concepts - 5 th Edition, Aug 22, 2005.
XPath ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.31 Database System Concepts - 5 th Edition, Aug 22, 2005.
XPath (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.32 Database System Concepts - 5 th Edition, Aug 22, 2005.
Functions in XPath ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.33 Database System Concepts - 5 th Edition, Aug 22, 2005.
More XPath Features ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.34 Database System Concepts - 5 th Edition, Aug 22, 2005.
XQuery ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.35 Database System Concepts - 5 th Edition, Aug 22, 2005.
FLWOR Syntax in XQuery ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.36 Database System Concepts - 5 th Edition, Aug 22, 2005.
Joins ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.37 Database System Concepts - 5 th Edition, Aug 22, 2005.
Nested Queries ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.38 Database System Concepts - 5 th Edition, Aug 22, 2005.
Sorting in XQuery ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.39 Database System Concepts - 5 th Edition, Aug 22, 2005.
Functions and Other XQuery Features ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.40 Database System Concepts - 5 th Edition, Aug 22, 2005.
XSLT ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.41 Database System Concepts - 5 th Edition, Aug 22, 2005.
XSLT Templates ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.42 Database System Concepts - 5 th Edition, Aug 22, 2005.
Creating XML Output ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.43 Database System Concepts - 5 th Edition, Aug 22, 2005.
Creating XML Output (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.44 Database System Concepts - 5 th Edition, Aug 22, 2005.
Structural Recursion 10.45 Database System Concepts - 5 th Edition, Aug 22, 2005. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Joins in XSLT 10.46 Database System Concepts - 5 th Edition, Aug 22, 2005. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Sorting in XSLT ,[object Object],[object Object],[object Object],10.47 Database System Concepts - 5 th Edition, Aug 22, 2005.
Application Program Interface ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.48 Database System Concepts - 5 th Edition, Aug 22, 2005.
Storage of XML Data ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.49 Database System Concepts - 5 th Edition, Aug 22, 2005.
Storage of XML in Relational Databases ,[object Object],[object Object],[object Object],[object Object],10.50 Database System Concepts - 5 th Edition, Aug 22, 2005.
String Representation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.51 Database System Concepts - 5 th Edition, Aug 22, 2005.
String Representation (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.52 Database System Concepts - 5 th Edition, Aug 22, 2005.
Tree Representation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.53 Database System Concepts - 5 th Edition, Aug 22, 2005. bank (id:1) customer (id:2) account (id: 5) customer_name (id: 3) account_number (id: 7)
Tree Representation (Cont.) ,[object Object],[object Object],[object Object],[object Object],10.54 Database System Concepts - 5 th Edition, Aug 22, 2005.
Mapping XML Data to Relations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.55 Database System Concepts - 5 th Edition, Aug 22, 2005.
Storing XML Data in Relational Systems ,[object Object],[object Object],[object Object],[object Object],10.56 Database System Concepts - 5 th Edition, Aug 22, 2005.
SQL/XML ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.57 Database System Concepts - 5 th Edition, Aug 22, 2005.
SQL Extensions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.58 Database System Concepts - 5 th Edition, Aug 22, 2005.
XML Application: Web Services ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10.59 Database System Concepts - 5 th Edition, Aug 22, 2005.

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