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Describe Specialsation and generalization?
Specialisation /generalization: This is a top down and bottom up approach to the design of database. It displays the IS_A relationship among a super class (parent) and related sub-classes. It is represented through inverted triangle in the Chen notation.
The Incident table, with an auto-incrementing incident number, etc, looks like: incident_num reporter date time incide
Cyber Transit Ltd keeps up-to-date information on the processing and current position of each dispatched item. Dispatched items are the main concern of the Cyber Transit product tr
1) Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a pict
how to connect vb.net with access
Question 1 What are the advantages of DBMS approach in managing data? Question 2 What are the services provided by a database system Question 3 List and briefly describe
Process-oriented decompositions Process-oriented decompositions divide complex process, task or function into simpler sub processes until they get simple enough to be deal
10A.53 Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department. 10A.54 Code an Oracle Database trigger to allow the
Define the categories of SQL Statements? 1) Statements that don't return a result set. This statement class includes INSERT, DELETE, and UPDATE. 2)Statements that return
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
management information system based on functional organisation
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