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Concept drill

three-valued-logic

GATE CSE & IT · SQL · 2000-2000

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Korth — Database System Concepts

Relational model, SQL, normalization, transactions

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2000 PYQ

In SQL, relations can contain null values, and comparisons with null values are treated as unknown. Suppose all comparisons with a null value are treated as false. Which of the fol...

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