In Dbms, provide a comprehensive comparison between Entity Type and Entity Instance.
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In Dbms, provide a comprehensive comparison between Entity Type and Entity Instance.
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- It would be helpful if the Dbms provided a complete comparison between the Entity Type and the Entity Instance.What is meant by an entity-relationship (E-R) model? Explain the terms Entity, Entity Type, and Entity Set in DBMS.Conditions that signal to the database designer that supertype and subtype relationships should be used are described.
- write a detailed contrast among Entity type & Entity Instance in DbmsExplain the concept of functional dependency in the context of database normalization.For the purpose of illustrating the structure of a database, either an E-R diagram or DBDL may be used. If that's the case, which strategy do you favor, and why?
- 1. According to what you understand, what is the relationship between Functional Dependency and Normalization? 2. There are several attribute relationships, including partial dependency and transitive, give an example of the two relationships. 3. Why do we do the normalization stage in database design, especially in the logical stage?Explain the concept of transitive dependency in a database and how it can be resolved through normalization.When representing the structure of a database, you may use either an E-R diagram or a DBDL. Which strategy do you favour, and why do you like it?