lecture13 - Semi-structured or Web-like Databases CS30785...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Semi-structured or Web-like Databases CS30785 Lecture 13 – XML-QL Dr. Gangmin Gary Li Department of CSSE XJTLU Gangmin.li@xjtlu.edu.cn Room: D441
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Previous lecture • Query language – Core, Lorel and UnQL • Label variables in Query languages L13-XML-QL 13-2 CS30785 - Semistructured or Web-like databases
Background image of page 2
Outlines • XML-QL L13-XML-QL 13-3 CS30785 - Semistructured or Web-like databases
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Query Language XML-QL XML-QL is similar with SQL and OQL on database. It is a query language for XML data uses path expressions and patterns to extract data from the input XML data has variables to which this data is bound has templates which shows how the output XML-data is to be constructed both patterns and templates use the XML-syntax L13-XML-QL 13-4 CS30785 - Semistructured or Web-like databases
Background image of page 4
Query Language XML-QL L13-XML-QL 13-5 CS30785 - Semistructured or Web-like databases
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
13-6 CS30785 - Semistructured or Web-like databases
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 15

lecture13 - Semi-structured or Web-like Databases CS30785...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online