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DATABASE, Database Management System
WHAT IS SQL
Posted Date: 11/14/2012 12:26:15 AM | Location : Sri Lanka
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Textbook ordering system, Question: Consider the following database rel...
Question: Consider the following database relations for a textbook ordering system used by a college bookshop: Book (b-copy#, bname, ISBN#, author, price, subject) Order (s#
What is a view, What is a view? Make a view of EMP table named DEPT 20, to...
What is a view? Make a view of EMP table named DEPT 20, to display the employees in department 20 and their annual salary. Ans: View is a virtual table that does not consist
What is the use of a slotted-page structure, What is the use of a slotted-p...
What is the use of a slotted-page structure and what is the information are there in the header? The slotted-page structure is used for organizing records within a one block.
Explain the management of data store, Explain the Management of Data Store ...
Explain the Management of Data Store Every system irrespective of its nature of application requires storing permanent data for consequent use in problem solving. Some objects
Entity set or entity type, A collection of a same kind of entities is known...
A collection of a same kind of entities is known as an Entity Set or entity type. Example: For the COLLEGE database defines earlier objects of concern are Students, Faculty,
What is a database, What is a database? Database - Basically in simpl...
What is a database? Database - Basically in simple terms A database is a collection of inter related data and/or information stored so which it is available to several users
Set difference, Set Difference If R1 and R2 are two union compatible re...
Set Difference If R1 and R2 are two union compatible relations or relations then result of R3 =R1- R2 is the relation that have only those tuples that are in R1 but not in R2.
Statistical analysis of data, An important first step to the statistical an...
An important first step to the statistical analysis of data is to "get to know your data". The following tasks should contribute to this. (a) To the right of the dataset cons
Entity-relationship diagram, 1. Item based services will be charged fixed p...
1. Item based services will be charged fixed prices, and time-based will be charged variably depending on time. Such as per hour. Item-based: Fixed, pedicure, waxing, threading, fa
Create a classification model, Use again the GE Flight Quest Data and build...
Use again the GE Flight Quest Data and build on the work done for homework 1 and 2. The goal is to create a classification model which classifies flights into "on-time" (you can de
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