XMl ppt

1. XML PRESENTATIONExtensionmarkuplanguage BY: Sachit Singh http://smartpassiveincomes.blogspot.com/

3. Comparison between XML AND HTML

4. XML SYNTAX

5. XML QUARIES AND MEDIATORS

6. Limitation of HTML

7. Challenges

8. Summery

10. Markup language for document containing structured information

11. XML is define by four specification-

12. XML- Extension markup language

13. XLL- Extension link language

14. XSL- Extension Style or layout language

15. XUA- Extension USER agent http://smartpassiveincomes.blogspot.com/

17. XML Version 1.0 introduced by world wide web consortium (W3C) in 1998

18. Bridge for data exchange on the web http://smartpassiveincomes.blogspot.com/

25. The <XML> element marks the beginning of the data island, and its ID attribute provides a name that you can use to reference the data island.http://smartpassiveincomes.blogspot.com/

28. DTD serves as grammar for the underlying XML document, and it is part of XML language.

29. DTDs are somewhat unsatisfactory, but no consensus exists so far beyond the basic DTDs.

30. DTD has the form: <!DOCTYPE name [markupdeclaration]> http://smartpassiveincomes.blogspot.com/

31. DTD (cont’d) Consider an XML document: <db><person><name>Mithlesh Singh</name> <age>18</age> <email>mith@gmail.com </email> </person> <person>………</person> ………. </db> http://smartpassiveincomes.blogspot.com/

33. DTD (cont’d) Occurrence Indicator:

36. To extract data from the input XML data

37. Has variables to which data is bound and templates which show how the output XML data is to be constructed

38. Uses the XML syntax

39. Based on a where/construct syntaxWhere combines from and where parts of SQL Construct corresponds to SQL’s select

43. At the sources the data may be structured (e.g. from relational databases)

44. We model the data as semi structured to facilitate exchange and integration

45. Users see an integrated semi structured view that they can query

46. Queries are eventually reformulated into queries over the structured resources (e.g. SQL)

48. Two main contexts:Data conversion: converts data between two different models e.g. by translating data from a relational database into XML Data integration: integrates data from different sources into a common view

49. price stock StoreBook Store Book authors name bid phone title sid Converting Relational Database to XML Example: Export the following data into XML and group books by store Relational Database: Store (sid, name, phone) Book (bid, title, authors) StoreBook (sid, bid, price, stock)

53. Comparisons of XML AND HTML

54. Authoring XML Elements

55. Authoring XML Elements (cont’d)

56. Authoring XML Documents

57. Authoring XML Documents (cont’d)