What aspect of database design is generally miss in er model

Assignment Help Database Management System
Reference no: EM131347103

Database Design and Views

Hello Class! Please respond to BOTH of the following questions:

Question A

The author's approach to database design is to develop an ER model and then convert those models to relational tables.

• Why do you suppose this approach is used?

• What aspect of database design is generally missed in the ER Model that the conversion to relational tables addresses?

Question B

Research the concept of a "view" and share the pros and cons.

Reference no: EM131347103

Questions Cloud

Determine the boundaries of the three stages of production : In the Deep Creek Mining Company example described in this chapter (Table 7.1), suppose again that labor is the variable input and capital is the fixed input. Specifically, assume that the firm owns a piece of equipment having a 500-bhp rating.
What types of tools are used and what techniques are used : What types of tools are used? What techniques are used? Prepare a 10-15 Slide presentation that fully discusses the topic questions.
Expected return on the market-what must risk-free rate be : A stock has an expected return of 13.9 percent, a beta of 1.80, and the expected return on the market is 10.3 percent. What must the risk-free rate be?
Portfolio equally invested in risk-free asset-two stocks : You own a portfolio equally invested in a risk-free asset and two stocks. If one of the stocks has a beta of 1.55, and the total portfolio is exactly as risky as the market, what must the beta be for the other stock in your portfolio?
What aspect of database design is generally miss in er model : Why do you suppose this approach is used? What aspect of database design is generally missed in the ER Model that the conversion to relational tables addresses?
Determine the maximum efficiency and open circuit voltage : Determine the maximum efficiency and open circuit voltage for the propane?oxygen fuel cell, C3h8 + 5(O2) → 3(CO2) + 4[H2O(l)],
Uses accounting values rather than financial values : Which one of the following statements concerning bond ratings is correct? Which one of these methods uses accounting values rather than financial values? Which one of the following transactions occurs in the primary market?
Ethics and moral reasoning applying an ethical theory : Choose either utilitarian or deontological ethical theory to apply to the ethical question - Explain the core principles of that theory and demonstrate how the principles of the theory support a certain position on that question.
What are your privacy expectations from the online sites : What are some online or electronic systems that you use on a regular basis (e-mail, online banking, or e-commerce)? What are your privacy expectations from the online sites that you use?

Reviews

Write a Review

Database Management System Questions & Answers

  Knowledge and data warehousing

Design a dimensional model for analysing Purchases for Adventure Works Cycles and implement it as cubes using SQL Server Analysis Services. The AdventureWorks OLTP sample database is the data source for you BI analysis.

  Design a database schema

Design a Database schema

  Entity-relationship diagram

Create an entity-relationship diagram and design accompanying table layout using sound relational modeling practices and concepts.

  Implement a database of courses and students for a school

Implement a database of courses and students for a school.

  Prepare the e-r diagram for the movie database

Energy in the home, personal energy use and home energy efficiency and Efficient use of ‘waste' heat and renewable heat sources

  Design relation schemas for the entire database

Design relation schemas for the entire database.

  Prepare the relational schema for database

Prepare the relational schema for database

  Data modeling and normalization

Data Modeling and Normalization

  Use cases perform a requirements analysis for the case study

Use Cases Perform a requirements analysis for the Case Study

  Knowledge and data warehousing

Knowledge and Data Warehousing

  Stack and queue data structure

Identify and explain the differences between a stack and a queue data structure

  Practice on topic of normalization

Practice on topic of Normalization

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd