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What does conceptual design work?
A conceptual design involves modelling independent of the DBMS.
Un-Normalized Form (UNF) If a table having non-atomic values at every row, it is said to be in UNF. An atomic value is something that cannot be further decomposed. A non-atomic
Natural Join : It is the similar like Equi join except one of the duplicate columns is removed in the result table. The natural join is the most usually used form of join operation
Chapter 10a review questions
what does glory be mean
What is Relational calculus? Relational calculus is a Non- Procedural language.
Differentiate between Key and superkey? Key and superkey - A key a single attribute or a combination of two or more attributes of an entity set in which is used to identify o
Type of views : Simple views and Difficult Views Feature Simple Views Complex Views Number of tables One
What is difference between TRUNCATE and DELETE? - Truncate can't be rolled back whereas Delete can be. - Truncate keeps the lock on table whereas Delete keeps the lock on ea
What is multiplicity in the associations? Give an example to explain multiplicity? Multiplicity in association indicate number of objects participate in any relationship. For
Explain TPS concurreny executions stating their advantages in online business advancement
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