Differentiate primary keys and foreign keys

Assignment Help Database Management System
Reference no: EM131529122

Question: Tiny College wants to keep track of the history of all its administrative appointments, including dates of appointment and dates of termination. (Time-variant data is at work.) The Tiny College chancellor may want to know how many deans worked in the College of Business between January 1, 1960, and January 1, 2016, or who the dean of the College of Education was in 1990. Given that information, create the complete ERD that contains all primary keys, foreign keys, and main attributes.

Reference no: EM131529122

Questions Cloud

What is a recursive join : Explain why the following two commands produce different results: SELECT DISTINCT COUNT (V_CODE) FROM PRODUCT; SELECT COUNT (DISTINCT V_CODE) FROM PRODUCT.
Determine your strength regarding instructional design skill : Determine three of your strengths regarding instructional design skills. Determine two areas of instructional design that you would like to learn more about.
What did the party believe about the role of the government : What did the party believe about the role of the government and why did they adopt these views?
Analyze the causes of two common legal problems in training : Analyze the causes of two common legal problems in training. Suggest two approaches to avoid these common legal problems.
Differentiate primary keys and foreign keys : Tiny College wants to keep track of the history of all its administrative appointments, including dates of appointment and dates of termination.
Locate a news story about an ethical violation : Locate a news story or press release about an ethical violation(s) resulting from actions of employees in the criminal justice system.
Create the complete erd that contains all primary keys : Some Tiny College staff employees are information technology (IT) personnel. Some IT personnel provide technology support for academic programs.
How a childs environment might pre-dispose him to bully : Using each of the five systems in Bronfenbrenner's theory, identify and describe how a child's environment might pre-dispose him or her to bully.
Current assets include cash-receivables-land and inventory : Earning a profit is the primary goal of working capital management. Current assets include cash, receivables, land, and inventory.

Reviews

Write a Review

Database Management System Questions & Answers

  Limitations of the relational model

Identify and describe three limitations of the relational model and recommend strategies to overcome these limitations.

  Default rules for enforcing referential integrity constraint

Explain how referential integrity actions can be used to override the default referential integrity constraints.

  What are the major components of a migration plan

Discuss why testing is so essential to the development of a new system, and explain how a test case relates to a test plan - compare and contrast unit testing, integration testing, system testing and acceptance testing.

  Formulate and list functional and multi-valued dependencies

Formulate and list the functional and multi-valued dependencies. Show how you apply the steps to arrive at the tables and at each iteration, explain whether each derived table is already in BCNF and 4NF (if applicable).

  Primary key identified for each relation

Review the Entity Relationship diagram and derive a relational schema using the rules and naming conventionsof the course text. A primary key identified for each relation

  Current alcan technology infrastructure

- What are the pros and cons of the current Alcan technology infrastructure and pros and cons of the new Alcan technology infrastructure

  Study and modify the postgresql source code

Write a Assignment to study and modify the PostgreSQL source code, with a focus on one of the core modules - the buffer manager

  Create a vendor database and related reports

Create a vendor database and related reports and queries to capture contact information for potential PC vendors. This information will be used to populate an MS Access database.

  Create a form to link the spreadsheet to a table in database

Create a form (frmUpdateMediaLink) to link the spreadsheet to a table in the database. Create a form (frmUpdateMedia), write a VBA code to extract the data and display it in a listbox, dropdownbox or any from of grid

  Provide data for a management report

In this assignment, the software is used to provide data for a management report. The focus is not learning a software package, but the report and the data required to make the simulation

  Develop a complete system

The assignment will be chosen by the individual student with my approval. An ideal assignment will be one which involves at least four entity sets, but not too many since there will be critical time pressure to complete the assignment.

  Create point data from an excel sheet

Create Point Data From an Excel Sheet.Use the database you created in Mapping Assignment Part One to create a point shapefile that you will use for Mapping Assignment Part Three.

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