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Define database management system?
DBMS is Data Base Management System, which having of a collection of interrelated data and a set of programs to access those data.
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define tractable and intractable problemsproblems that can be solved in polynomial time are known as tractable problems problems that cannot be
explain the theory of computational complexity a problems intractability remains the similar for all principal
explain class p problemsclass p is a class of decision problems that can be solved in polynomial
explain the halting problemgiven a computer program and an input to it verify whether the program will halt on that input or continue working
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define instance and schema instance collection of data kept in the data base at a particular moment is
define the terms 1 physical schema 2 logical schema physical schema the physical schema explains the database design at the physical level
define data model a data model is a collection of conceptual tools for explaning data data relationships data semantics and consistency
what is storage manager a storage manager is a program module that gives the interface between the low
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