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NEED FOR A DATABASE MANAGEMENT SYSTEM
A Database is a structured, persistent collection of data of an organisation. The database management system (DBMS) manages the database of an enterprise. But why do we need the database management system? To explain it, let us first discuss the alternative to it that is the file-based system.
Explain the structure of well formed formulae in relational calculus. Ans: a. An atom is a formula b. If P1 is a formula, after that so are ¬P1 and (P1) c. If P1 and P2 a
A View may be defined of as a virtual table, that is, a table that does not really exist in its own right but is instead inferred from one or more underlying base data table. T
exercise solution
What are the object-oriented approaches Software systems which are designed with structured design methodology never support some of desired quality attributes for example reus
What is normalization? It is a method of analysing the given relation schemas based on their Functional Dependencies (FDs) and primary key to attain the properties (1).Minim
What are the costs to be considered when a transaction has to be rolled back when recovering from deadlock? Ans: A few transaction will must rolled back (made a victim)
what is bogus empowerment. And what is genuine empowerment
Explain differance between Primary and secondary storage ? Primary and secondary storage Computer storage is classified within primary(main) memory and secondary(per
What is Secondary Index While making the index, generally the index table is kept in the primary memory (RAM) and the main table, because of its size is keeps in the secondary
Project Description: The work is about founding the best skilled person for the job. I will give you the job description. Skills required are Data Entry, Database Administrat
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