Chapter 3 – Database Systems, Data Warehouses, and Data Marts
... Object-Oriented Databases – both data and their relationships are contained in a single object. An object consists of attributes and methods that can be performed on the object’s data. Encapsulation – refers to the grouping into a class of various objects along with their attributes and methods – i. ...
... Object-Oriented Databases – both data and their relationships are contained in a single object. An object consists of attributes and methods that can be performed on the object’s data. Encapsulation – refers to the grouping into a class of various objects along with their attributes and methods – i. ...
9/4 - Penn Engineering - University of Pennsylvania
... Key concept for concurrency is that of a transaction : an atomic sequence of database actions (read/write) on data items (e.g. calendar entry). Key concept for recoverability is that of a log : keeping track of all actions carried out by the db. Sounds like operating systems all over again! ...
... Key concept for concurrency is that of a transaction : an atomic sequence of database actions (read/write) on data items (e.g. calendar entry). Key concept for recoverability is that of a log : keeping track of all actions carried out by the db. Sounds like operating systems all over again! ...
Chapter 8 - Marshall University Personal Web Pages
... Protecting data from theft or malicious destruction and making sure that sensitive data is accessible only to those employees of the company who have a “need to know.” ...
... Protecting data from theft or malicious destruction and making sure that sensitive data is accessible only to those employees of the company who have a “need to know.” ...
Slide 1
... Modify structure as necessary to accommodate changes from performance, access and usage. ...
... Modify structure as necessary to accommodate changes from performance, access and usage. ...
presentation3 - University Of Worcester
... – large, regularly updated centralised data store that needs to be accessed through many connections – database downloaded every time the application is to be used! ...
... – large, regularly updated centralised data store that needs to be accessed through many connections – database downloaded every time the application is to be used! ...
For what are used constructor methods? What actions they can
... 5. part. Intelligent database systems What is data, facts, information, knowledge, wisdom? Give an examples. With what an intelligent database system differs from the usual database systems? What is a logical programming language? Give an example. What three basic architectures are used for intellig ...
... 5. part. Intelligent database systems What is data, facts, information, knowledge, wisdom? Give an examples. With what an intelligent database system differs from the usual database systems? What is a logical programming language? Give an example. What three basic architectures are used for intellig ...
Chapter 7 - Marshall University Personal Web Pages
... Each of the two entities converts to a table with its own attributes but with no foreign keys (regarding this relationship). ...
... Each of the two entities converts to a table with its own attributes but with no foreign keys (regarding this relationship). ...
Chapter 4
... This is equivalent to a field Copyright © 2012 Pearson Education, Inc. publishing as Prentice Hall ...
... This is equivalent to a field Copyright © 2012 Pearson Education, Inc. publishing as Prentice Hall ...
Course Code: CSC 422 - The Federal University of Agriculture
... manner suitable for communication, interpretation or processing by human or automatic means. ...
... manner suitable for communication, interpretation or processing by human or automatic means. ...
In Memory Database
... SAP HANA has decreased code complexity by eliminating aggregate data in favor of an in-memory systems higher speed and compute all aggregates need "on-the-fly". This method provides the same or better performance as traditional systems while making system maintenance a lot easier ...
... SAP HANA has decreased code complexity by eliminating aggregate data in favor of an in-memory systems higher speed and compute all aggregates need "on-the-fly". This method provides the same or better performance as traditional systems while making system maintenance a lot easier ...
Object oriented Databases.
... MOCHA is a self-extensible middleware system. The new application-specific functionality for query processing is deployed to remote sites in a automatic fashion. Existing middleware systems will ship the data or evaluate operators already present in the environment. ...
... MOCHA is a self-extensible middleware system. The new application-specific functionality for query processing is deployed to remote sites in a automatic fashion. Existing middleware systems will ship the data or evaluate operators already present in the environment. ...
MS_Access
... • Tables can be joined in three ways; – one-to-one – one-to-many – many-to-many • A one-to-many relationship exists when a table has one record associated with a given value but the related table has many records for that value. – Table with one record is called the primary (parent) table – Table wi ...
... • Tables can be joined in three ways; – one-to-one – one-to-many – many-to-many • A one-to-many relationship exists when a table has one record associated with a given value but the related table has many records for that value. – Table with one record is called the primary (parent) table – Table wi ...
Chapter 2
... Schema: Description of something A database schema is a precise description of the structure of information in a database system. (eg) Figure 2.1 (p34) Schema diagram for a database It is specified during database design and it is not expected to change frequently. 2.2 Three-Schema Architectur ...
... Schema: Description of something A database schema is a precise description of the structure of information in a database system. (eg) Figure 2.1 (p34) Schema diagram for a database It is specified during database design and it is not expected to change frequently. 2.2 Three-Schema Architectur ...
The Data Ring: Community Content Sharing
... – Seamless transition between intentional and extensional data – Provides a simple mechanism for loose data ...
... – Seamless transition between intentional and extensional data – Provides a simple mechanism for loose data ...
Database Management: Getting Data Together
... • The DBMS Process • Concurrency Control • Security ...
... • The DBMS Process • Concurrency Control • Security ...
Database Modeling and Implementation
... Brief description of the content of the course (Catalog Description) - This is an advanced course that covers the design of distributed databases, data modeling, normalization rules, query languages, layout and design of forms, transaction management, and implementation of the database design. Exten ...
... Brief description of the content of the course (Catalog Description) - This is an advanced course that covers the design of distributed databases, data modeling, normalization rules, query languages, layout and design of forms, transaction management, and implementation of the database design. Exten ...
CCN2124 Introduction to Databases
... This subject equips students with basic concepts and essential skills in developing databases so as to support different types of business information systems. It provides training which enables students to learn how to design and operate a database, and to understand database systems–from the analy ...
... This subject equips students with basic concepts and essential skills in developing databases so as to support different types of business information systems. It provides training which enables students to learn how to design and operate a database, and to understand database systems–from the analy ...
Chapter 1: Introduction
... E.g. find the balances of all accounts held by the customer with customer-id 192-83-7465 select account.balance from depositor, account where depositor.customer-id = ‘192-83-7465’ and depositor.account-number = account.account-number Application programs generally access databases through one of ...
... E.g. find the balances of all accounts held by the customer with customer-id 192-83-7465 select account.balance from depositor, account where depositor.customer-id = ‘192-83-7465’ and depositor.account-number = account.account-number Application programs generally access databases through one of ...