Construct an entity-relationship model for the database

Assignment Help Database Management System
Reference no: EM13335436

1. Construct an entity-relationship (ER) model for the database. Make sure you include in your model details of entities, relationships, attributes, keys and limits in participation.

Ensure that you give adequate justification for the assumptions that you make in designing your entity-relationship model and include any important integrity constraints (business rules).

2. Show by providing SQL statements, that all of the ‘dot points' in the Operations section can be produced from an implementation of your ER diagrams. Sometimes you may need to use more than one SQL statement, and you should explain how one SQL statement provides information needed by the subsequent SQL statement. NOTE: You don't have to actually create the database and run the queries, this is a thought exercise to show that the queries are possible.

 

Reference no: EM13335436

Questions Cloud

Can mcdonalds be held responsible for causing obesity : A number of overweight Americans filed a class action suit for deceptive trade practices and negligence against McDonald's Corporation, the fast-food chain famous for its hamburgers, French fries, and chicken nuggets.
How the price system answers the five fundamental questions : Describe how the price system answers the five fundamental questions of economics, and discuss at least two of the short-comings of the capitalist price and market system.
Determine what is the giambono company wacc : You were hired as a consultant to Giambono Company, whose target capital structure is 40% debt, 15% preferred, and 45% common equity. The after-tax cost of debt is 6.00%, the cost of preferred is 7.50%
Explain the ph of a saturated solution of ba(oh)2 : What is the pH of a saturated solution of Ba(OH)2 at 25oC? For Ba(OH)2, Ksp=5.0x10-3.
Construct an entity-relationship model for the database : Construct an entity-relationship (ER) model for the database. Make sure you include in your model details of entities, relationships, attributes, keys and limits in participation.
Key to organizational survival is the ability to acquire : Question 1 According to Lubit, toxic managers can be "narcissistic, aggressive, rigid, and impaired." Describe and give examples of each of these types and an ideal way of coping with that type of toxic manager. If possible, give an example of a "tox..
Estimate the expected signal from the photodiode : A scintillator absorbs an incident flux of 5 MeV alpha particles that totals 10^6 particles/s, estimate the expected signal from the photodiode
Explain the problem is to imagine the reaction proceeds : One way to approach the problem is to imagine the reaction proceeds to equilibrium by first going 100% to completion and then backing up a little
What capital budget could firm support without issuing stock : A corporation expects to have earnings available to common shareholders (net profits minus preferred dividends) of $1,000,000 in the coming year. The firm plans to pay 40 percent of earningss available in cash dividends.

Reviews

Write a Review

Database Management System Questions & Answers

  Create database that implements the proposed data warehouse

Knowing the customers for targeted advertising. The board would like to know which type of customers (age or gender) are more interested in which types of cars (type)

  Explain the idea for database and partitioned view

Explain the idea for the database along with the thoughts for partitioned view. How would you utilize this partitioned view?

  Draw an entity relationship diagram for the system

Draw an Entity Relationship diagram for the system and Identify the table design for the database displaying all the fields/attributes. Ensure that all tables are in 3NF. You also need to identify the primary keys and foreign keys, where applicable..

  Construct a relational schema for the er-diagram

Construct a relational schema for the ER-diagram. Make sure that you correctly translate Specialization and Many-to-Many relationships. Please follow carefully the following guidelines when you ?nish this question.

  Data modeling and normalization

Data Modeling and Normalization

  Key functions of organization-map to strategic information

From information system point of view, we should take the key functions of organization and map them to strategic information. Do your companies follow this process or are steps skipped?

  Indicate change to make original premiere products database

Indicate the changes (using the shorthand representation) that you would need to make to the original premiere products database desing to support the following requirements.

  Compute canonical cover for set of functional dependencies

Compute a canonical cover for the above set of functional dependencies (show each step of your derivation with an explanation).

  Modify oracle table data using the correct sql statements

Explain how you could delete the IT department without deleting all the employees who work for that department.

  Completing transaction using sql

Write down the complete transaction using SQL.

  How does oracle process query

How does Oracle process this query? That is, what does Explain Plan tell you about how the query is processed - how would you recognize that the results were not correct?

  Compose conceptual data modeling techniques

Explain the fundamentals of how data is physically stored and accessed and compose conceptual data modeling techniques that capture information requirements - design a relational database so that it is at least in 3NF.

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