Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask DBMS Expert


Home >> DBMS

Write short notes on extension and intension?

In any data model, it is significant to distinguish among the description of the database and the database itself the description of a database is known as database schema, that is specified during database design and is not expected to change often. The actual data in a database is database itself. May change quite frequently.

The schema is sometimes is known as the intension, and a database state is known as an extension of the schema.

DBMS, Programming

  • Category:- DBMS
  • Reference No.:- M9545972

Have any Question?


Related Questions in DBMS

Question a suppose you are a marathon runner that can run a

Question : a) Suppose you are a marathon runner that can run a maximum of n miles on a single bottle of water. You are given a map of your marathon route with all the water stations marked. Design an efficient algorithm ...

Sql query assignment -for this assignment you are to write

SQL Query Assignment - For this assignment you are to write your answers in a word document. This assignment is in three parts: Part A (reporting queries), Part B (query performance), Part C (query design). For this assi ...

In this section the student is required to develop a

In this section, the student is required to develop a technical debate based on his/her understanding using available scientific literature. The answer to this question should not exceed three A4 Pages. In the traditiona ...

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 ...

A schools office of the registrar maintains data about the

A School's office of the registrar maintains data about the following entities: a) courses (including course number, title, credits, syllabus and prerequisites), b) course offerings (including course number, year, semest ...

Database and information retrieval assignment - data

Database and Information Retrieval Assignment - Data Privacy Essay Task - Write an essay (aim for 750 words) that addresses issues associated with data proivacy. Use the Australian Privacy Principles - discussed in class ...

Question 1 describe 1nf 2nf 3nf2 explain why 4nf is a

Question: 1: Describe 1NF, 2NF, 3NF. 2: Explain why 4NF is a normal form more desirable than BCNF. The response must be typed, single spaced, must be in times new roman font (size 12) and must follow the APA format.

The system development team at the xyz company is working

The system development team at the XYZ Company is working on developing a new customer order entry system. In the process of designing the new system, the team has identified the following data entity attributes: Invento ...

Stored procedure please create the following stored

Stored procedure. Please create the following stored routines using CPS3740_2017S database using the tables in dreamhome database. xxxx is your email id 1) Implement a stored procedure p3Q21_xxxx to display the Branch ci ...

Assignmenta restaurant is designing a database to keep

Assignment A restaurant is designing a database to keep track of customer services. A customer is defined as a customer ID, name, address and a telephone number. Customers are served by employees. Each employee is define ...

  • 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