the xml server dr. zhiwang fan zhiwang.fan@softwareag.com
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The XML ServerThe XML Server
Dr. Zhiwang Fan
zhiwang.fan@softwareag.com
Traditional databases and their limits
XML: Another Internet revolution?
XML database and Tamino
Agenda
Traditional databases and their limits
Traditional Databases according to their Storage
Hierarchical Database- ADABAS
Relational Database- Oracle- DB2- MS SQL Server
Object Oriented Database- ?
Object Oriented Relational Database- Informix
Theory of Relational Model
Relational Algebra
Entity-Relationship Concept
Normalization
Referential Integrity
SQL (Structured Query Language)
Features of a relational DBMS
Data Store Kernel
SQL-Engine
API
Client - Server Architecture
ODBC, JDBC Drivers
Security
Transaction and Isolation
Multi User and Multi Session
Limitation of current DBMS
The Relational Database has reached its Peak
No more new Vendors of large DBMS
The current DBMS can only treat simple Data
The Market needs new DBMS for complex data
The Market needs Platform crossed and Web oriented DBMS
Graphics
Text
Compound docs.
Design data
Spatial data
Temporal data
Audio
Seismic data
Images
UnstructuredUnstructured StructuredStructured
Video
ComplexComplex
SimpleSimple
Existing DBMSs
Query
No Query
Relational DBMS Object-Relational DBMS
File System Object-Oriented DBMS
Simple Data Complex Data
100 150
1
Stonebraker’s Estimation
Relative Size of DBMS Markets in Year 2005
The Query Language of a Object-Relational DBMS
OQL:Based on OO Programming Languages like C++
SQL3 (Standard about 1500 pages):- user defined type (for complex data type)- user defined functions- “Super Table” (Inherence)
XML - Another Internet revolution ?
Short History of Information Technology
Office Automation
EnterpriseAutomation
Inter-EnterpriseAutomation
What is XML?
XML: Extensible Markup Language W3C Standard
http://www.w3.org/XML/
Subset of SGML Separate the layout from the text content
XML describes only the data structureHTML delivers text layout
XML is the base for Internet AutomationHTML is for human readingXML is for computer “reading”
Difference between HTML and XML
<?xml version=“1.0”?>
<weather-report>
<date>July 1, 1999</date>
<time>9:00 a.m.</time>
<area>
<city>Frankfurt</city>
<country>Germany</country>
</area>
<measurements>
<temp scale=“C”>18</temp>
</measurements>
</weather-report>
XML file
<html><head>
<title>Weather Report</title></head>
<body>
<h1>Weather Report</h1>
<b>Date: </b>July 1, 1999<br>
<b>Time: </b>9:00 a.m.<br>
<b>City: </b>Frankfurt<br>
<b>Country</b>Germany
<p>
<b>Temperature:</b> 18° C
</body>
</html>
HTML file
markup
Content Management, Document Management
e-Book Library
e-Government
Supply Chain Management
Mobile Phone Protocol like WAP
XML: Basic Technology of e-Business
XML Components
Data/DocumentXML
Type Information (Meta Data)DTD/Schema
In-Memory Programming Model(API)DOM/SAX
Layout and TransformationXSL, XSLT
Query LangugageXQL, XPath, X-Query, XML QL, Quilt
XML-Database and
SQL Data
“Table Data”
Input and Output from Database: Entry based data:
First_name Name Sex Position
Harald Schmidt m Manager
Erika Mann f Developer
Tim Holmes m Consulter
XML Data
Structured Data
Input and Output:
<?xml version="1.0"?>
<bib>
<book>
<title> Harold and the Purple Crayon </title>
<author>
<lastname> Johnson </lastname>
<firstname> Crockett </firstname>
</author>
<pubinfo>
<publisher> Harper and Row </publisher>
<price> 4.76 </price>
<year> 1995 </year>
</pubinfo>
</book>
</bib>
A A
A
B
B B
C
C
C
C
A
B C
CC
CA B
Tamino ...
is the Information Server for Electronic Business is the first native XML DBMS
can store and manage any data
attaches directly to the Internet without programming
turns any data source into Internet objects can access and integrate any existing data source
supports XQL as well as SQL for relational data
supports NT, Unix and Mainframe systems
SQL
XML
XML over SQL (SQL is not optimal)This is slow, difficult and proprietary
is right
This ensures performance,and extensibility
Tamino: A Native XML Database
XML
X-Machine and SQL-Engine
SQL Engine
Tamino
XML-Data SQL-Data
X-Machine
Web / Internet
XML ApplicationXML Application
SQL ApplicationSQL Application
Datastore
inolnk
Development Server Integration
XMLXML MESSAGING
DATA INTEGRATIONDATABASE MANAGEMENT
DEVELOPMENT TOOLS
JAVA DEVELOPMENT
DOM APIs, SERVLETS..
S D KS D K
Tamino XML Platform Strategy
Build Store Link
DDCOMCOM / / CCORBAORBA
Tamino The XML Platform for Electronic Business
TaminoTaminoXML DatabaseXML DatabaseTaminoTamino
X-NodeX-Node
Tamino Tamino X-BridgeX-Bridge
ApplicationApplicationBolero / X-Studio / Java / C++Bolero / X-Studio / Java / C++
Web Server
Machines Humans
SQLSQLDBMSDBMS
Remote Remote XML XML
applicationsapplications
Core Core Transaction Transaction
SystemsSystems
4% 5%
7%
15%
51%
18% ApplicationIntegration
Supply ChainManagement
SalesSystems
DocumentManagement
InformationPublishing
Others
Usage Across Applications
Sept. 2000
Thank you
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