Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask DBMS Expert


Home >> DBMS

Discuss along with examples about several types of attributes present in the ER model?

Types of Attributes are:
• SIMPLE attributes are attributes which are drawn from the atomic value domains
E.g. Name = {John} ; Age = {23}
• COMPOSITE attributes: Attributes that consist of a hierarchy of attributes
E.g. Address may consists of "Number", "Street" and "Suburb" → Address = {59 + ‘Meek Street' + ‘Kingsford'}
• SINGLE VALUED attributes: Attributes which have only one value for each entity E.g. Name, Age for EMPLOYEE
• MULTIVALUED attributes: Attributes that have a set of values for each entity E.g. Degrees of a person: ‘ BSc' , ‘MIT', ‘PhD'
• DERIVED attributes: Attributes Contain values which are computed from other attributes
Eg. Age can be derived from attribute DateOfBirth. In this situation, DateOfBirth might be known as Stored Attribute

DBMS, Programming

  • Category:- DBMS
  • Reference No.:- M9545323

Have any Question?


Related Questions in DBMS

Suppose that we have a table of house prices and a table of

Suppose that we have a table of house prices and a table of zip codes: • hprices(hid (PK),address,bedrooms,price,zipcode) • zipcodes(zipcode (PK),state) Write a SQL query that finds the average, maximum, and minimum pric ...

Sql transactions exercisesconsider table itemnameprice

SQL Transactions Exercises Consider table Item(name,price) where name is a key, and the following two concurrent transactions. T1: Begin Transaction; Update Item Set price = 2*price Where name = 'pencil'; Insert Into Ite ...

Question sql injection is in the top 10 owasp and common

Question : SQL Injection is in the top 10 OWASP and Common Weakness Enumeration. Using MySQL and PHP, show your own very short and simple application that is vulnerable to this attack. Provide another version that mitiga ...

Sqlwrite a select statement that returns three columns from

SQL Write a SELECT statement that returns three columns from the Vendors table: VendorContactFName, VendorContactLName, and VendorName. Sort the result set by last name, then by first name.

Question as explained throughout this course entity

Question: As explained throughout this course, entity relationship modeling is a critical element of database design. If the database is not properly modeled, it is unlikely that the database will be properly developed. ...

Q1 given the following file for assignment workercom

Q1. Given the following file for assignment worker.com, identify data anomalies that must be removed before data can be loaded in data warehouse. Worker_assignment ← -----------------on course web site File is available ...

Your taskyou have been commissioned to develop a database

Your task You have been commissioned to develop a database system that is capable of keeping records for FU's table tennis matches from now on. The database needs to keep a record of: - All team information, including pl ...

Assignment task -write and run sql statements to complete

Assignment Task - Write and run SQL statements to complete the following tasks Part A - DML 1. Show the details of the products where the product code starts with '22'. 2. Display the vendor details from areacode 615. 3. ...

Analytic reportpurpose the purpose of this task is to

Analytic Report: Purpose: The purpose of this task is to provide students with practical experience in working in teams to write a Data Analytical report to provide useful insights, pattern and trends in the chosen/given ...

Objectivethe objective of this lab is to be familiar with a

OBJECTIVE: The objective of this lab is to be familiar with a process in big data modeling. You're required to produce three big data models using the MS PowerPoint software. This tool is available on UMUC Virtual Deskto ...

  • 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

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As