Enhanced Data Models for Advanced Applications

Jun 17th, 2015
Studypool Tutor
Alabama Southern Community College
Price: $30 USD

Tutor description

Enhanced Data Models for Advanced Applications are data models are an extension to the Datamodels what we had already come across in Database Architecture. These advance application is used to incorporate .

Word Count: 13303
Showing Page: 1/45
UNIT - V5.0 IntroductionEnhanced Data Models for Advanced Applications are data models are an extension to the Datamodels what we had already come across in Database Architecture. These advance application is used to incorporate Spatial and Multimedia databases Which are very eminently used in modern information technology. The Temporal database on the other hand looks at the calendar events etc.,The spatial databases deals with Geographical information system, Weather, maps etc.,5.1 Objective The objective of this lesson is to learn and understand the enhanced data model in the Active Database and triggers, the concepts of the Distributed Database Management System and the Security concern of the same. The problem areas of the security is analysed. The terms prolog and DataLog notation and deductive databases.5.2 Contents5.2.1 Enhanced Data Models for Advanced ApplicationsActive database & triggers?Temporal databases?Spatial and Multimedia databases?Deductive databasesActive database & triggersTriggers are executed when a specified condition occurs during insert /delete/update. Triggers are action that fire automatically based on these conditions. Triggers follow an Event-condition-action (ECA) model.Event:?Database modification?E.g., insert, delete, update),Condition:?Any true/false expression?Optional: If no condition is specified then condition is always trueAction:?Sequence of SQL statements that will be automat

Review from student

Studypool Student
" Awesome! Exactly what I wanted. "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1824 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors