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Which are the Different symbols used in entity relationship model?
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∙ 11y ago
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Wiki User
∙ 11y ago
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A regularity in observed data or relationship between different quantities is usually called?
model
What does a scale represent?
A scale represents the relationship between a model and the actual measurement if the real object.
Which of the following types of models would be most effective to demonstrate the relationship between distance and time?
idea model.
How long is a million buses?
Buses are manufactured with different dimensions. You need to state which model of bus.
You want a working model of mathematics for school exhibition what you should make?
area and perimeter of different shapes
Full form of eer model?
ENHANCED ENTITY RELATIONSHIP OR EXTENDED ENTITY RELATIONSHIP
Entity-relationship model of hospital mis?
entity relation model for hospital database
Entity-relationship model for online shopping websites?
yes
What is the Enhanced Entity Relationship Model?
is called specialization and generalization.
What are the advantages and disadvantages of Entity Relationship Diagrams?
Entity-Relationship diagrams are useful for modelling data and the relationships between the data. They can be used when the constraints between data are relatively simple. They do not allow specification of interactions between the data or model how the data changes (there are no processes in Entity-Relationship). Entity-Relationship diagrams are most often used to model databases.
What are the Advantages and disadvantages of Entity Relationship Model?
Entity-relationship model advantages and disadvantages AdvantagesDisadvantagesConceptual simplicityVisual representationEffective communicationIntegration with the relational database modelLimited constraint representationLimited relationship representationNo representation of data manipulationLoss of information
What is the advantages of entity relationship model?
AdvantagesConceptual simplicityVisual representationEffective communicationIntegration with the relational database model
What is er model in dbms?
In software engineering, an Entity - Relationship model(ER model for short) is an abstract and conceptual representation of data. Entity-relationship modeling is a database modeling method, used to produce a type of conceptual schema or semantic data model of a system, often a relational database, and its requirements in a top-down fashion. Diagrams created by this process are called entity-relationship diagrams or ER diagrams.learn more www.ngprakasam.hpage.com
Explain entity relationship model with suitable example?
An entity relationship model is a visual representation of the relationships between entities in a database. For example, in a university database, you could have entities such as "Student," "Course," and "Instructor," with relationships like "Student enrolls in Course" and "Instructor teaches Course." These relationships are represented by lines connecting the entities in a diagram, showing how they are connected and interact with each other.
Entity relationship model with example?
draw an er diagram on attendance management system
Entity-relationship model retaurent management?
er daigram and dfd retaurent management?
Entity relationship diagram for online banking?
An entity-relationship diagram for online banking includes the process of online banking and the relationship between each step. It is a model that maps out, describes, and defines how components are linked for online banking.
