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How nulls are treated in comparison operator?
Along with comparison (relational) operators, the null values are ignored as we cannot derive the relation along with the given operand. Nulls cannot be equated. Nulls can be checked through containment by using IS NULL or IS NOT NULL operators.
what is the need of a log in dbms
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Ask question #Minim 100 words accepted#what is recovery management component in database management system and how it is useful
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various techniques of hashing?
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