An Entity-Relationship Diagram (ERD) is a type of data model that shows the needs of an organisation as a _______________. Select the most suitable answer to fill in the blank.ReportListTableGraphicColumn
Question
An Entity-Relationship Diagram (ERD) is a type of data model that shows the needs of an organisation as a _______________. Select the most suitable answer to fill in the blank.ReportListTableGraphicColumn
Solution
Graphic
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Question 3Entity Relationship Diagrams (ERDs) are the foundation for designing databases. After creating an ERD, what is the first step you must take to map the ERD to the table?1 pointArrange the attributes by importance List the attributes alphabeticallySeparate the entity from the attributesNone of the abov
In ER Diagram, a relationship between two entities of similar entity type is called a
Which of the following should we always do when preparing to map an ER diagram to relations?Select one:a.Normalize the ERD until no more normalization can be doneb.Check that the DBMS can interpret the constraints in the ERDc.Make sure that we have simplified the ERD as much as possibled.Make sure that our ERD has only one entity and one relationship
An Entity-Relationship (ER) Model represents: The various entity types of interest and the relationships among them in the domain being modeled. Various tables and links among them in the domain being modeled. The various entity types of interest and the relationships among them in the domain being modeled along with operations to be performed on data. Various tables and links among them in the domain being modeled along with operations to be performed on data.
Entity Relationship Diagrams are output from the following phase of Database Development:Physical Database DesignConceptual Data ModelingLogical Database DesignDistributed Database DesignReview AnswerNext
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