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In computer science, data modeling is the process of creating a data model by applying a data model theory to create a data model instance. A data model theory is a formal data model description.
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Meghan Hammes
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∙ 15y agoIn computer science, data modeling is the process of creating a data model by applying a data model theory to create a data model instance. A data model theory is a formal data model description.
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Wiki User
∙ 9y agoA data model is a set of computer objects. This term not only includes the product but also the consumers, orders, suppliers, and the like.
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Explain data model?
Explain data model?
What is the difference between data model and database model?
A database is a collection of tables that is used for some purpose (typically an application of some sort). A database model is a description of that database, and describes how the tables relate to each other. Typically, a model is designed first, then the actual database is implemented using the model as a blueprint.
2 Explain why navigation is simple in Relational Data Model than in Hierarchical?
Explain why nevigation is simple relational data model than in hirarchical model
Bits are packaged into frames at which layer of the OSI model?
Data link layer
What is E-R data model?
The Entity-Relationship Model is often referred to as a semantic data model, because it more closely resembles real world scenarios than, e.g., the relational model. . In the ER model, we model the concept of "Instructors." In the relational model we deal with names and phone numbers. . In the ER model, there is a distinction between entities (objects) and relationships between such entities. In the relational model, both concepts are represented by relations.
What is the lowest data model?
Physical Data Model
Explain data model?
Explain data model?
Advantages of flat data model?
two main early navigational data models were the hierarchical model and the CODASYL model (network model)
What is the data modeler?
Physical Data Model
What is a record-based data model?
-> A record based data model is used to specify the overall logical structure of the database.-> In this model the database consists of a no. of fixed formats of different types.-> Each record type defines a fixed no. of fields having a fixed length.-> There are 3 principle types of record based data model. They are :1. Hierarchical data model.2. Network data model.3. Relational data model.
What is the differences between model driven and data driven?
Model data driven user interacts primarily with a mathematical model and its results while data driven DSS is user interacts primarily with the data
Describe three commonly used data models?
Enterprise data model, Relational model and ????
Define data models and list different types of data models?
A data model is a collection of concepts that can be used to describe the structure of a database and provides the necessary means to achieve this abstraction whereas structure of a database means the data types,relationships and constraints that should hold on the data. Data model are divided into three different groups they are 1)object based logical model 2)record based logical models 3)physical models Types: Entity-Relationship (E-R) Data Model Object-Oriented Data Model Physical Data Model functional data model
What is the job of a infastructure analyst in database modeling?
A data model is a collection of conceptual tools for describing data, data relationships, data semantics, and consistency constraints.2 data models : the entity-relationship model and the relational modelER model is a high-level data model. It is based on a perception of a real world that consists of a collection of basic objects, called entities, and of relationships among these objects.The relational model is a lower-level model. It uses a collection of tables to represent both data and the relationships among those data.
What is the difference between data driven DSS and model driven DSS?
Model data driven user interacts primarily with a mathematical model and its results while data driven DSS is user interacts primarily with the data
What is a Data model for multimedia?
unified approach model.
What model citori is serial 09381rtj53?
Browning.com has sn data and model data under customer service.
