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

Mis 204 hands-on activityaccess - forms and

MIS 204 Hands-On Activity: Access - Forms and Reports Introduction In this assignment you will learn how to create forms and reports to access and analyze your data. Forms are useful for data entry and navigation. Report ...

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 ...

Assignment business intelligence and data

Assignment: Business Intelligence and Data Warehouses Businesses today are extremely reliant on large amounts of data for making intelligent business decisions. Likewise, the data warehouses are often structured in a man ...

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 ...

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 ...

Here is two assignment one is only summery of project from

Here is two assignment one is only summery of project from first assignment, in powerpoint. pleasedont copy and paste, it will be verified by software for plagiarism. please cite all sources by APA format. due date is 26 ...

Problem iyoull be happy to know that we made a strong case

Problem I "You'll be happy to know that we made a strong case to manage¬ment that we should hire a new systems analyst to specialize in ecommerce development," says Al Falfa, a systems analyst for the multi-outlet intern ...

Database normalizationnormalize the below orders table to

Database Normalization Normalize the below Orders table to 3NF. Make sure to identify all the entities and their attributes, especially if you make any new items (such as entity or attributes). The following is a list of ...

Question 1use the tables below to answer the following

Question 1: Use the tables below to answer the following questions: customerid customerid firstname lastname city state 10101 John Gray Lynden Washington 10298 Leroy Brown Pinetop Arizona 10299 Elroy Keller Snoqualmie Wa ...

Objective this is an individual assignment aimed to give

Objective: This is an individual assignment aimed to give the student exposure in understanding, designing, building and analyzing database systems for a given real-time based scenario and be able to conduct optimal stra ...

  • 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