Write candidate keys and referential integrity constraints

Assignment Help Database Management System
Reference no: EM1368712

Consider the table:

Staff_Meeting (EmployeeName, ProjectName, Date)

The rows of this table record the fact that an employee from a particular project attended a meeting on a given date. Assume that a project meets at most once per day. Also assume that only one employee represnts a given project, but that employees can be assigned to multiple projects.

A. state the functional dependancies in Staff_Meeting.

B. transform the tables into one or more tables in BCNF. State the primary keys, candidate keys, and referential integrity constraints.

C. Is your design in part B an improvement over the original table? what are the advantages and disadvantages.

Reference no: EM1368712

Questions Cloud

Economic profit and break even : Will the firm realize an economic profit, break even, or incur an economic loss and how much will the profit or loss be - also how much will the profit or loss be
Show reproductive processes of the organization : What kind of actions might you look for in your organization that lead to good strategic practice
Prepare appropriate training progam : Find an issue at Wal-Mart that can be improved by developing a training program. How might the training be delivered?
Essential components of an effective training program : new employee training for the call center customer service representatives of an investment management firm.
Write candidate keys and referential integrity constraints : Transform the tables into one or more tables in BCNF. Write the primary keys, candidate keys, and referential integrity constraints.
Leverage and power in nogotiation : Leverage and Power in Nogotiation - Describe how you think power and influence tactics interact with gender during negotiations.
Important information about population-ecology model : Identify three writers/researchers who are associated with the Population-Ecology model describing their contributions. Then relate this model (benefits and/or problems) to one real-work experience.
Quantative analysis network models : Briefly explain the steps of the shortest-route technique as well describe the minimal-spanning technique.
Legality of risk management : what would you do if you were in charge of the issue and what could the organization have done to avoid the event

Reviews

Write a Review

Database Management System Questions & Answers

  Determine the names of all tracks from table

All primary keys are underlined. All foreign keys have same name as primary key that they are referencing. Determine the names of all Tracks which are more than 10 minutes (600,000 ms) long.

  Create data file grades with records of the form

Input names of students from the user, terminated by ZZZ, and create a data file GRADES with records of the form.

  Explain database models-hierarchical and relational

Explain each of three database models, hierarchical, relational, and object-oriented, and provide specific referenced example of each of these model types implemented in a functioning database

  Explain how to create query in access query wizard

Describe how to create a query in Access Query Wizard equilvant to the query: SELECT first, last, department, hours FROM payroll WHERE hours>.

  Design er schema to keep track of information of votes

Design an er schema for keeping track of information about votes taken in the U.S. House of Representatives during the current two year congressional session.

  Create entity-relationship diagram for bookstore database

Create Entity-Relationship diagram for a bookstore database, that maintains information about books, professional journals, their authors, and publishers.

  Creating use case to describe typical sales process

Create use case to describe a typical sales process. Then make a sequence diagram for use case.

  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..

  Explaining uses for views

Views are integral part of virtual private databases, yet views are utilized for many other reasons. Find out many other uses for views.

  Prepare a set of non-functional requirements

Need a system that networks its 3 campuses in the US and one campus in Singapore. Transaction data for all campuses should be available to all locations. In addition, students should be able to use the Internet to view classes, enroll, register, and ..

  Database triggers are utilized to record logins by users

Several times, database triggers are utilized to record logins by users. Here is the example of login trigger that inserts row into table every time a user connects.

  Types of relationships in a design model of a database

There are many kinds of relationships in a design model of a database. Why is it important to classify each of these types in an ERD Model?

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