DB TECHNOLOGIES, Database Management System

WHAT IS DATABASE TECHNOLOGIES
Posted Date: 2/3/2013 10:09:45 AM | Location : United Kingdom







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Synonyms and Indexes Some of the essential properties of indexes are: An Index is a schema Object Indexes can be formed explicitly or automatically Indexes are m


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In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.

how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?

Before defines the second type of integrity constraint, viz., Entity Integrity, we should be well-known with the concept of NULL. Mostly, NULL is intended as a basis for dealing

Describe entity referential integrity and integrity. Give an example of each. Entity Integrity Rule - If there is a attribute A of relation R is a prime attribute of R then A

Consider the following frequency counts of some itemsets in a transaction database r : freq({A}, r) = 0.405 freq({B}, r) = 0.510 freq({C}, r) = 0.303 freq({A

(a) Data Mining Process : In the context of this cluster analysis project , and in your own words , explain how you would execute the first stage of data mining, namely the "P

What is equi join? Equi Join - It generates all the combinations of tuples from two relations which satisfy a join condition along with only equality comparison (=).