Aggregation, Database Management System

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What does Aggregation mean?

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Database ass1, #quCreate a database design specification (Enhanced Entity R...

#quCreate a database design specification (Enhanced Entity Relationship Diagram (EERD) and Relational Data Model (RDM)) from the given business description. The RDM must be in 3rd

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State the definition of association An association is a structural relationship which specifies that objects of one thing are connected with objects of another. In UML, asso

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When every condition appears with equality condition (=) only. c)   Natural join (denoted by R*S) When two join attributes have the similar name in both relations. (Tha

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Consider the relations given below Borrower (id_no, name) Book (accno., title, author, borrower_idno) (a) Define the above relations as tables in SQL forming real world assumptio

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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

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Question 1 What do you mean by database management system? Question 2 Write a note on Object-Oriented Model Question 3 Explain Sequential File Organization Question

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Explain how the associations are implemented as classes. A general approach in this case is to transform an association class into a simple class linked to two original classes

Keys, it can be possible to create any table without primary key

it can be possible to create any table without primary key

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