DSS, Database Management System

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WHAT IS DSS? WRITE ITS REQUIREMENTS.

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Question 1 What do you mean by database management system? Question 2 Write a note on Object-Oriented Model Question 3 Explain Sequential File Organization Question

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CREATE TABLE prodtrans ( pno number (4) ptype char (1) CHECK (ptype in ('I','R','S')), qty number (5) FOREIGN KEY pno REFERENCES product (pno) ON DELETE CASCADE);

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What is the use of unique function? UNIQUE function: If UNIQUE is specified then only unique values are used to computed the mean.

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what is object-identity

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What is Natural Language Interfaces? Natural Language Interfaces - These interfaces accept requests written within English or a few other language and attempt to "understand" t

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What is a relationship called when it is maintained between two entities? A relationship is called Binary relationship when it is maintained between two entities.

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Define Join and Outer Join and differentiate between them.      Ans: Join - It generates all the combinations of tuples from two relations which satisfy a join condition.  Oute

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