Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask DBMS Expert


Home >> DBMS

Q1. Recent changes in the privacy laws encompass disallowed organizations from using SSN to recognize individuals unless certain restrictions are satisfied. As an outcome, most US universities can’t use SSN as primary key (apart from for financial data). In practice, StudentID, a unique ID, a unique identifier, assigned to every student, is probable to be used as the primary key instead of SSN as StudentID is usable across all aspects of the system.

a) Some of the database designers are reluctant to use generated keys (as well named as surrogate keys) as primary keys (like StudentID) as they are artificial.

Can you recommend any natural choices of keys which can be used to store the student record in a UNIVERSITY database?

b) Assume that you were able to guarantee uniqueness of a natural key that comprised last name. Are you guaranteed that the last name will not change throughout the lifetime of the database? If the last name can change, what solutions can you suggest for making a primary key which still comprises last name however remains unique?

Q2. describe the conditions where each of the different isolation levels would be helpful for transaction processing.

DBMS, Programming

  • Category:- DBMS
  • Reference No.:- M910610

Have any Question? 


Related Questions in DBMS

Projectinstructionsfor the purpose of grading the project

Project Instructions: For the purpose of grading the project you are required to perform the following tasks: Instructions 1 Open the start file Day Spa that you recently downloaded then Save the workbook as Lastname_Fir ...

Lab manualin this lab you will learn how to use ddl and

Lab Manual In this lab you will learn how to use DDL and Oracle Enterprise server to create user accounts, modify, monitor and delete them. You will take the first look at object permissions in Oracle. The last assignmen ...

Lab creating a database designthis assignment contains two

Lab: Creating a Database Design This assignment contains two Sections: Database Design Diagram and Design Summary. You must submit both sections as separate files in order to complete this assignment. Note: If you are us ...

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 ...

The use of an access database has become very common over

The use of an Access database has become very common over the last 10 years. Access is the preferred desktop database because server databases such as structured query language (SQL) and others are too complex and are be ...

Query 1list all movies played in landmark or music box

Query 1 List all movies played in Landmark or Music Box. Output only titles and eliminate duplicates. Query 2 List all stars born after 1960. Order them by their birthdate in ascending order. Output their first names, la ...

Fundamentals of databases assignment 1 -q1 explain the

Fundamentals of Databases Assignment 1 - Q1. Explain the distinction between total and partial constraints. Q2. Explain the difference between a weak and a strong entity set. Q3. Explain the distinction between disjoint ...

Suppose that you are the database developer for a local

Suppose that you are the database developer for a local college. The Chief Information Officer (CIO) has asked you to provide a summary of normalizing database tables that the IT staff will use in the upcoming training s ...

Data information decision please respond to the

"Data Information Decision" Please respond to the following: • With the obvious pace of current technology development, data continues to grow daily. Imagine that you are a Database Administrator for a large organization ...

Homeworkgiven the relations below answer the following

HOMEWORK Given the relations below, answer the following queries using SQL. Note that the tables contain sample records only and do not represent all the possible records that could be stored in these tables. MEMB ERS ME ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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