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Define Deadlock prevention These protocols make sure that the system will never enter a deadlock state. There are two methods to deadlock prevention. One approach makes sure t
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
sql is relationally complete-justify
INTRODUCTION Databases and database systems have become an essential part of our daily life. We encounter many activities that involve some interaction with a database almost
Explain several types of constraints that can be specified using CREATE TABLE command. Explain CASCADE and RESTRICT clauses of DROP SCHEMA command? Constraint Description PRIM
What type of view of total database content? Data base content Conceptual view of total database contain.
Can a filed occur in several field groups. Yes. But it leads to redundant data redundancy.
differences between a classified catalog and a dictionary catalog
Explain degree of relation? Degree of a Relation - The degree or arity of a relation is the number of attributes n of its relation schema.
how map binary relation one to one
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