Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask DBMS Expert


Home >> DBMS

Q1. Book club consists of members to whom the books are sold. The books are made available at different places in the city. The books are recognized by a book_id, the author and the publisher. The author can prepare more than one book and a book can encompass more than one author. Members encompass information like Memership_id, Name, Phone# and Status. The member can place more than one order. You can select additional attributes for the schema which seem suitable. Illustrate any supposition you make.

Show minimum and maximum cardinality ratios based on your suppositions.

a) Design an E-R schema diagram for this application.
b) Map the E-R diagram to relational model.

Q2. describe how does SQL implement the entity integrity and referential integrity constraints of the relational data model? Describe with an illustration.

Q3. Illustrate the meaning of the view in SQL? Describe giving an appropriate illustration, when:

a) View with single defining table.
b) Views defined on the multiple tables by using joins.
c) Views defined by using grouping, is/are updatable.

Q4. Illustrate the meaning of JOIN? Describe different JOIN operations in the Relational Algebra with illustration.

DBMS, Programming

  • Category:- DBMS
  • Reference No.:- M910673

Have any Question? 


Related Questions in DBMS

Lab assignment working with additional database objectslab

Lab Assignment: Working with Additional Database Objects LAB OVERVIEW Scenario and Summary There is a lot more to a database than just tables and the data in them. A very important part of database security has to do wit ...

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 ...

At this point you decide to implement a hash structure for

At this point, you decide to implement a Hash structure for the contributor data to prepare for searches. You will read the contributor information from a file provided; it is a comma delimited (CSV) file. As each record ...

Lab modifying a database design in visiothis assignment

Lab: Modifying a Database Design in Visio This assignment contains two Sections: Visio Diagram and Design Summary. You must submit both sections as separate files in order to complete this assignment. Use "Appendix A: De ...

Database design discusion 150 wordsnormalizationplease

Database Design Discusion (150 words) Normalization Please respond to BOTH of the following questions: Question A In your own words discuss the benefits of normalization. Question B Do you think we should normalize our d ...

Question - databasesuse database software such as microsoft

Question - Databases Use database software such as Microsoft Access or LibreOffice Base to perform the following actions. (Refer to Workshops 9 & 10 for help.) A. Create a new database. Add tables based on the design of ...

Assignment - data mining and machine learning in the real

Assignment - Data Mining and Machine Learning in the Real World OBJECTIVE: Learn about some of the things going on in the real-world with Machine Learning and Data Mining. Your answers to the questions in the cells right ...

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 ...

Salaries for database administrators database

SALARIES FOR DATABASE ADMINISTRATORS Database administrators (DBAs) are among the highest paid professionals in the information technology field. Many people work for 10 to 20 years to get a promotion to DBA. Connect to ...

Virtualization fundamentalsunit 3 research projectwrite an

Virtualization Fundamentals Unit 3 Research Project Write an overview of *any two* of the following topics. Each overview should be between one half and one full page long. You should use a minimum of two sources for eac ...

  • 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