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Explain the term High level DML?
High level DML A high-level or non-procedural DML permit the user to specify what data is needed without specifying how it is to be acquired. Several DBMSs permit high-level DML statements either to be entered interactively from a terminal or to be embedded in a general-purpose programming language.
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distributed quey processing
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Explain CNT in the respects of QBE ? CNT: It is one of the aggregation commands given in QBE. It is used to identify number of tuples
Sub query in the UPDATE command : Example : //Double the commission for employees, who have got at least 2 increments. UPDATE EMP SET COMM = COMM * 2 WHERE
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Draw an ER diagram for company''s database schema
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