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What is a relational database? Write a 1500 word essay on the above question. Your response should include the evolution of 1st generation data models, the relevance of seminal work that led to the 2nd generation data model, a discussion of higher order semantics in the relational data model, and an explanation of the related concepts, theories, and modeling notations that are used to create the logical model of a relational database. Elaborate on the role of functional dependencies in normalization, and how the goal of eliminating insertion, deletion, and update anomalies is achieved in relational design. Describe relations in the context of the conceptual and logical data model, as well as the physical implementation of the relational database.
Assume that data warehouse consists of three dimensions time, customer, and cell phone plan, and two measures number of calls and cell phone bill. Sketch a schema diagram for above data warehouse using star schema.
Explain why log records could be written between the begin checkpoint and end checkpoint records.
your database has been a hit. you have been called back to the customers headquarters and they want a detailed report
In the assignment report provide explanation about each of the applied techniques. In your Excel workbook file place the results in separate columns in the corresponding spreadsheet.
metropolis toys is an independent family-owned manufacturer of wooden toys. the toys are designed by members of the
Each student should submit his or her own critical assessment of the coursework. The evaluation should include a discussion on how the coursework has reinforced (or otherwise) his or her appreciation of the techniques and processes employed in undert..
What is lan based database management system give an example of lan based database management system with a company name
optimize the query in the select script using Alter Table to add appropriate indexes. Also use Optimize and Explain to show how the performance of this query has improved.
To design a database, a database planner should spend a considerable amount of time thinking about what kind of information will be included in the database and how it will be organized. There are several approaches to creating a successful datab
Use Hands-on Projects that are in the back of your Chapter to introduce you to the Microsoft SQL Server 2008.
computer applications that run on desktop and laptop computers have for a long time been designed to be driven by
objectivesto analyse and comprehend a provided er diagram and database schemato implement a database based on the
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