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

  Use sql to create and drop tables.

Include the SQL statements and screenshots of your new tables in the paper.

  How many of jobs want you to have some database knowledge

How many of those jobs want you to have some database knowledge?-What's your take-should you expand your education and learn more about databases and DBMSs? Why or why not?

  Create a linked table in database by importing the workbook

Create a linked table in the database by importing the workbook named a08c1Customers.xlsx. Use the first row of the Customers1 worksheet as column headings and accept all other default options.

  Stack and queue data structure

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

  Create an entity relationship diagram

Create an entity relationship diagram by today for an automated web-based timesheet portal system - An Entity-Relationship Diagram of an automated payroll system for a company.

  Database using entity-relationship diagram

Design the logical structure of a database using Entity-Relationship diagram - Apply normalization techniques to reduce redundancy in a database

  Develop a flowchart and provide a brief explanation for it

Develop a flowchart and provide a brief explanation for it

  Database system development

The database application project (DAP) for this course consists of the creation of a fully functional Microsoft Access database application for a real client.

  Electronic spreadsheets in data modeling

Explain in detail with supporting illustrations the six stages of the problem solving process and explain when the choice for using electronic spreadsheets is the preferred tool of choice.

  Developing a household inventory database

For this Final Project you will be designing and developing a Household Inventory Database (HID). You will be creating tables, relationships, queries, forms, and reports

  E-r diagrams are oriented reward which of the data models

Is it possible for two entities to be related to each other in two ways? For example, could entity A be related to entity B both 1:M and 1:1 at the same time?

  Create a new table using the create table command

Obtain the columns names and data types of the view USER_TABLES using the DESCRIBE command. Retrieve the names of all the tables of a user's database tables using the SELECT table_name FROM user_tables; command.

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