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What is a homogeneous distributed database? In homogeneous distributed databases, all sites have the same database management system software, are aware of one another, and agr
I have to solve a problem using access
Write a query that display ename annual salary and comm from emp table
Problem: (a) Data mining is one of the best ways to analyse data and using software techniques, hidden and unexpected patterns and relationships in sets of data can be extrac
Deletion Anomalies: Loss of important Information: In some cases, useful information may be lost when a tuple is deleted. For instance, if we delete the tuple corresponding to stu
What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
The need for three level architecture The aim of the three level architecture is to divide each user's view of the database from the way the database is physically shown.
Write short notes on tuple relational calculus. The tuple relational calculation is anon procedural query language. It defines the desired information without giving a particul
as a customer service employee explain five measures you would recommend to make even a displeased students patronize the school canteen
In a relation, tuples are not inserted in any definite order. Ordering of tuples is not defined as a part of a relation definition. Though, records may be structured later accordin
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