XML related topics

[Mandy Smith]

Hi,
I am new to XML. I just want to know more about the following listed topics as, when, where and what to use and where to store these files in tomcat server(for eg xsl files).
DTD's
Schema
XSL
XSLT
SAX Parser
DOM /JDOM
XML file
what is a style sheet?
SOAP
JAXP
Xerces
XALAN
JAX
XSchema
XPath
XSP
I have come across these above listed topics related to XML work. If any one could please explain what these topic mean, when and in what situation to use.
I am simple situation here. I want to fetch the data from database and convert the fetched data into xml document and display this xml document data on the webpage and again fetching the user entered data from the webpage and converting into xml document and then storing back into the database.
In order to do the above listed simple situation, what all should i use/download.
I would appreciate your help.
Thanks,

[Ajith Kallambella]

Checkout http://www.w3schools.com You will find good explanations for many of the topics in your list.

[Zoe Peng]

www.w3.org
can't miss this..

[N Gupta]

Refer to: http://www.javaranch.com/ubb/Forum31/HTML/001231.html

[Ashish Jaiman]

I want to fetch the data from database and convert the fetched data into xml document

For this u need to first figure out which data base u would be using and which programming language if the answer is Microsoft then SQL Server2000 and ADO(.net) provides u with the API so that u can directly get the data in XML else u can use any Programming language (java ...) and any data base query the database get the result and convert the result to an XML document by using the Programming language and appropiate parser
u would need parser which can be free downloaded from the net once u decide which one u would be using

display this xml document data on the webpage and again fetching the user entered data from the webpage

for this u can use XSL(T) to render the information as HTML page and get the information back from the user or u can use a programm in ur language of choice and a parser.

converting into xml document and then storing back into the database

again u would need a program , parser to convert the data into appropiate sql satements and insert(update) data in the database

In order to do the above listed simple situation, what all should i use/download.

u would need a parser for sure and u r good to go


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-AJ
Sun Certified Java Programmer
Microsoft Certified Software Developer