Question: A database model is a theory or specification describing how a database is structured and used. There are several database models. Summarise five database

A database model is a theory or specification describing how a database is structured and used. There are several database models. Summarise five database models that have the following features: Efficiency Greater control over a database Reduces redundancy . Two-dimensional array of data Provides Views Central database engine Question 2 The Database Administrator (DBA) plays the most important and critical role in database management. List seven critical tasks performed by the DBA specifically to a database.

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Q1 Five database models that exhibit the mentioned features Relational Database Model Efficiency Known for its efficient data retrieval using SQL queries Greater Control Offers a structured approach w... View full answer

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