'Atomic values' diaporamas de présentation

An introduction to Logic Programming

An introduction to Logic Programming. Chapter 6. Chapter topics. Introduction Relational Logic Programming : specify relations among entities Logic Programming : data structures: lists, binary trees, symbolic expressions, natural numbers (church) Prolog : arithmetic , cuts, negation

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XQuery and XSLT

XQuery and XSLT. http://w3.org/People/fsasaki/qt-tutorial.ppt. Felix Sasaki World Wide Web Consortium. Purpose. General overview of XSLT 2.0 and XQuery 1.0: Common features, differences, future perspectives. Background: Who am I?. ? ??? ? ?? - ??? - ?? ? ? ? ?? - ??? ? ??? ? ?? - ??

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Chapter 7: Relational Database Design

Chapter 7: Relational Database Design. Chapter 7: Relational Database Design. Features of Good Relational Design Atomic Domains and First Normal Form Decomposition Using Functional Dependencies Functional Dependency Theory Algorithms for Functional Dependencies

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Relational Database Design Theory

Relational Database Design Theory. Lecture 6. Relational Database Design. Features of Good Relational Design First Normal Form Decomposition Using Functional Dependencies Functional Dependency Theory Algorithms for Functional Dependencies and Dependency preserving Decompositions

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Lecture 12: Database Design

Prof. Ray Larson & Prof. Marc Davis UC Berkeley SIMS Tuesday and Thursday 10:30 am - 12:00 pm Fall 2003 http://www.sims.berkeley.edu/academics/courses/is202/f03/. Lecture 12: Database Design. SIMS 202: Information Organization and Retrieval. Lecture Overview. Review

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Topics in Database Systems: XQuery

Topics in Database Systems: XQuery. Jonathan Foss Dr. Alexandra I. Cristea http://www.dcs.warwick.ac.uk/~acristea/. Previously we looked at: XPath Namespaces Next: XQuery. XQuery http://www.w3.org/TR/xquery/. What is XQuery?. XQuery is the language for querying XML data

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Handling Many to Many Relationships

Handling Many to Many Relationships. Handling Many:Many Relationships. Aims: To explain why M:M relationships cannot be implemented in relational database systems To demonstrate how to decompose many to many (M:M) relationships Introduce other types of relationships. Entities and Tables.

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Introduction to XML, XPath, & XQuery

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IT-3101 Database Management Systems

IT-3101 Database Management Systems. By- Jesmin Akhter Assistant Professor, IIT, Jahangirnagar University. Lecture 05 Relational Database Design Normalization-Part-2. Outline. Overview of Relational DBMS Normalization. Part_ID ? Description Part_ID ? Price Part_ID, Comp_ID ? No.

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Normal Forms

Normal Forms. First Normal Form: all table cells must contain atomic values no sets, arrays, lists, or other collection types no structured objects all relational databases satisfy first normal form by definition

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Semi-Structured Data Models

Semi-Structured Data Models. By Chris Bennett. Semi-Structured Data. What is it? Data where structure not necessarily determined in advance (often implicit in data) Descriptive, not prescriptive Self-describing and flexible in structure Where does it come from?

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Normalization

Normalization. Stanislava Armstrong http://www.cs.nott.ac.uk/~saw/teaching/G64DBS/lecture_slides.html. Last Lecture. Determine the outcome from executing each of the following statements on the Holidays table below:. SELECT Destination, COUNT(*) FROM Holiday WHERE ISNULL(Price) = TRUE

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Relational data objects

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XPath and Namespaces

XPath and Namespaces. Dr. Alexandra I. Cristea http://www.dcs.warwick.ac.uk/~acristea/. XPath. XPath is a syntax for defining parts of an XML document XPath uses path expressions to navigate in XML documents XPath contains a library of standard functions

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Features & Unification

Features & Unification. Ling 571 Deep Processing Techniques for NLP January 26, 2011. Roadmap. Features: Motivation Constraint & compactness Features Definitions & representations Unification Application of features in the grammar Agreement, subcategorization

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Normalization

Normalization. Data inconsistency, incorrectness and incompleteness is (partially) caused by redundancy. Normalization is the process of eliminating redundancy as much as possible, without losing data. Tools of Normalization. Normalization is achieved by lossless decomposition

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Getting started with ML

Getting started with ML. ML is a functional programming language. ML is statically typed: The types of literals, values, expressions and functions in a program are calculated (inferred) at compile time . Scheme, on the other hand, is a dynamically typed language.

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NoSql databases

NoSql databases. Please remember to read the NOSQL Distilled book and the Seven Databases book. Before we start. The classification of the various nosql databases is imprecise, semi-controversial, and we have to be careful about reading too much into it.

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Chemistry Lesson 10.1

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