Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask DBMS Expert


Home >> DBMS

Convert ERD to Relational Data Model

Make a Relational Data Model to implement a business state that is describeed by using an Entity Relationship Diagram and text. You are to use only the attributes listed in each problem. You might add associative tables, if the implementation needs it.
Each of the RDM explanations is to be in text format as shown:

Table_Name( attribute_1, attribute_2, attribute_3, … ,attribute_x)
Primary Key (attribute_1, attribute_2)
Foreign Key attribute_4 References Table_Name_2 (repeat for each foreign key)
Alternate Key (attribute_5, attribute_6) (repeat for each alternate key)

problem 1: Bluegum Childcare has numerous nurseries, comprising Wagga Wagga, Bathurst, Albury, Orange, and Mudgee. Each nursery is known by its campus code, ex: WW, B, A, O and M correspondingly. Additionally a unique nursery id is assigned to each nursery. Staff members are generally situated at one nursery, however might move to the other nursery on occasion.

Attributes to be comprised in the relational tables are nursery_name, nursery_id, nursery_address, nursery_code, staff_id, staff_fname, staff_lname, staff_employ_date.

problem 2: Handymen are employed on contract with specific skills. Skills are describeed with a skill_id – a uniquely assigned number, a skill explanation and their qualifications. The skill description should as well be uniquely stored in the database. The system requires being able to list the skills for each contractor as illustrated below:

John Smith, Garden design, lawn mowing, plumbing, Cert. Plumber;
Jane Doe, Painting, carpentry, electrical wiring, Adv. Dip. Industrial Electronics;
Attributes to be comprised in the relational tables are: contractor_id, contractor_fname, contractor_lname, qual_id, skill_id, skill_description, skill_acquired_date, qual_name.

problem 3: Contractors can work on many projects at any one time. One staff member supervises each project. Contractors can stop and restart work on a project and the system must record the details of starting and stopping work on the plan for each contractor.

Attributes to be comprised are staff_id, staff_fname, staff_lname, contractor_id, contractor_fname, contractor_lname, plan_id, plan_name, contractor_work_start_date, contractor_work_end_date

DBMS, Programming

  • Category:- DBMS
  • Reference No.:- M98012

Have any Question? 


Related Questions in DBMS

Analytical assignment individual or group of max two

Analytical Assignment (Individual or Group of Max two students) What is Research article? Review articles provides summary of current state of the research on a particular topic. Ideally, the writer searches for everythi ...

1 analyse situations andor environments for the application

1) Analyse situations and/or environments for the application of database solutions including web connectivity 2) Create, alter and remove relational tables, indexes and data using an appropriate database language. 3) Ex ...

Assignmentthis assignment consists of two sections a design

Assignment This assignment consists of two sections: a design document and a revised Gantt chart or project plan. You must submit both sections as separate files for the completion of this assignment. Label each file nam ...

Discussionyou have been asked to help a critical

Discussion You have been asked to help a critical infrastructure company in analyzing the privacy and security of a SCADA system. Conduct research on the topic and answer the following: 1. How would you describe general ...

Hospital database determining keysdevelop a microsoft

Hospital Database: Determining Keys Develop a Microsoft Access database based upon the following business scenario. Be sure to include tables, fields, keys, relationships, and test data in your database. Your final submi ...

Objective this is an individual assignment aimed to give

Objective: This is an individual assignment aimed to give the student exposure to the concepts relating to database systems and optimal strategies for efficient management of databases Learning Outcomes assessed: 1. Crea ...

Some people used to believe that data warehouses would

Some people used to believe that data warehouses would quickly replace databases for both online transaction processing (OLTP) and online analytical processing (OLAP). Of course, they were wrong. Why can data warehouses ...

Assignment database modeling and normalizationimagine that

Assignment: Database Modeling and Normalization Imagine that you work for a consulting firm that offers information technology and database services. Part of its core services is to optimize and offer streamline solution ...

Prepare a brief report that describes how data warehouses

Prepare a brief report that describes how data warehouses and online transaction processing complement each other. In your report make sure to include the following: • Why do companies use data warehouses? • What are the ...

Assignment1write a query that retrieves studentlastname

Assignment 1. Write a query that retrieves student.last_name, student.first_name and total number of enrollments from the student and enrollment tables. Your query should also include students that do not have any enroll ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen