update opreation, Database Management System

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notes about update opreation

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What is the use of Union and intersection operation? Union: The result of this operation contains all tuples that are either in r1 or in r2 or in both r1 and r2.Duplicate tuple

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State the Object Design for Processing  The object design phase comes after analysis and system design phase. The object design phase includes implementation details like as i

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What is a Name? A user-supplied name is used for identity. This form of identity is used for files in file systems. The user gives every file a name that uniquely identifies it

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