Chapter 4: Object-Oriented Data Modeling includes about Introduction, UML Language, Object-Oriented Modeling, Object Modeling Example, Tranform Class Diagram to Relational Database Schema and some thing else.
Database System: Chapter 2 - The Relational Data Model & SQL includes about Relational Model Concepts, Relational Model Constraints and Relational Database Schemas, Update Operations and Dealing with Constraint Violations, Basic SQL.
Database System: Chapter 5 - Data Modeling Using the (Enhanced) Entity-Relationship (E-ER) Model provides about Example Database Application (COMPANY), ER Model Concepts, ER Diagrams - Notation, ER Diagram for COMPANY Schema, Enhanced Entity Diagram.
Chapter 5 - The Relational Data Model and Relational Database Constraints present contents as: Relational model concepts, relational model constraints and relational database schemas, update operations and dealing with constraint violations.
Chapter 8 introduce SQL - Schema definition, basic constraints, and queries. The main contents in this chapter: Create database, create table, attribute data types and domains in SQL, data integrity (toàn vẹn dữ liệu), declarative integrity,...
Data Model: A set of concepts to describe the structure of a database, and certain constraints that the database should obey.
Data Model Operations: Operations for specifying database retrievals and updates by referring to the concepts of the data model. Operations on the data model may include basic operations and user-defined operations.
Database Systems: Lecture 1 - Database System Concepts and Architecture presents about File-based Approach, Database Approach, Three-Schema Architecture and Data Independence, Database Languages, Data Models, Database Schema and Database State, Data Management Systems Framework.
In this chapter presenting the terminology and basic concepts that will be used throughout the lecture. This chapter discusses data models and defines the concepts of schemas and instances, which are fundamental to the study of database systems, discuss the three-schema DBMS architecture, provides a user’s perspective on what a DBMS is supposed to do, describe the types of interfaces and languages that are typically provided
by a DBMS,...
In this chapter presenting the terminology and basic concepts that will be used throughout the lecture. This chapter discusses data models and defines the concepts of schemas and instances, which are fundamental to the study of database systems, discuss the three-schema DBMS architecture, provides a user’s perspective on what a DBMS is supposed to do, describe the types of interfaces and languages that are typically provided by a DBMS,...
Chapter 4 presents Relational Data Model and ER/EER-to-Relational Mapping. Upon completion of this lesson, the successful participant will be able to: Relational Data Model, main phases of database design, ER-/EER-to-Relational Mapping. Inviting you to refer.
In July 2008 Microsoft released the first version of the ADO.NET Entity Framework as part of the Visual
Studio 2008 Service Pack 1 as well as the .NET Framework 3.5 Service Pack 1. At the time, Microsoft LINQ
(Language Integrated Query) and LINQ to SQL had been out for a while and were gaining a lot of
Microsoft’s ADO.NET Entity Framework, known widely as EF, introduced out-of-thebox
Object Relational Mapping to .NET and Visual Studio. Central to Entity Framework
was the Entity Data Model, a conceptual model of your application domain that
maps back to the schema of your database. This conceptual model describes the core
classes in your application. Entity Framework uses this conceptual model while querying
from the database, creating objects from that data and then persisting changes back
to the database....
The module uses client-side examples to illustrate the various aspects of DOM,
but you should point out that DOM can be used equally well on the server.
Students will use DOM on the server during Module 8, ìValidating XML Data
Before beginning this module, you should ask students if they are already
familiar with another object model. (Any object model will do.) Prior exposure
to an object model makes it much easier to understand issues such as
inheritance, methods and properties, and creating objects in Microsoft
Databases and database systems are an essential
component of life in modern society: most of us
encounter several activities every day that involve some interaction with a database.
For example, if we go to the bank to deposit or withdraw funds, if we make a hotel
or airline reservation, if we access a computerized library catalog to search for a bibliographic
item, or if we purchase something online—such as a book, toy, or computer—
chances are that our activities will involve someone or some computer
program accessing a database.
Chapter 7 discusses how to design a relational database schema based on a conceptual schema design. This chapter presented a high-level view of the database design process, and in this chapter we focus on the logical database design or data model mapping step of database design. We present the procedures to create a relational schema from an Entity-Relationship (ER) or an Enhanced ER (EER) schema.
Learning objectives in this chapter: Describe the differences and similarities between relational and object-oriented database management systems, design a relational database schema based on an entity-relationship diagram, design an object database schema based on a class diagram,...
Chapter 7 discusses how to design a relational database schema based on a conceptual schema design. This chapter presented a high-level view of the database design process, and in this chapter we focus on the logical database design or data model mapping step of database design. We present the procedures to create a relational schema from an Entity-Relationship or an Enhanced ER schema.
The Self-Organizing Map (SOM) is a neural network algorithm, which uses a competitive learning technique to train itself in an unsupervised manner. SOMs are different from other artificial neural networks in the sense that they use a neighborhood function to preserve the topological properties of the input space and they have been used to create an ordered representation of multi-dimensional data which simplifies complexity and reveals meaningful relationships. Prof. T. Kohonen in the early 1980s first established the relevant theory and explored possible applications of SOMs. ...
Asmentioned in the introduction, the information associatedwith an event is
represented by a data structure called a notiﬁcation.We refer to the datamodel
or encoding schema of notiﬁcations as the event notiﬁcation model or simply
event model. Most existing event notiﬁcation services adopt a simple record-
like structure for notiﬁcations, while some more recent frameworks deﬁne an
object-oriented model (e.g., the Java™ Distributed Event Speciﬁcation [Sun
Microsystems 1998] and the CORBA Notiﬁcation Service [Object Management