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List the set operations of SQL?
1) Union
2) Intersect operation
3) The except operation
Design an algorithm to implement operations Each and every operation specified in the functional model could be formulated as an algorithm. The algorithm indicates how operat
Normal 0 false false false EN-IN X-NONE X-NONE
can you resolve this for me please? Database Management Systems Homework 1 The following relations are given (primary keys are underlined): PLAY-ACTOR(AId, Name, Nationality, Birt
what characterizes the levels in RAID technology
Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
Define entity integrity and referential integrity. How does SQL allow specification of these? Ans: Entity Integrity Rule- If the attribute A of relation R is a prime attribut
These are interactive interfaces, graphical that hide the difficulty of the DBMS and query language behind an intuitive, simple to understand, and convenient interface. This permit
What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
how to find entities
Explain the disadvantages of a file processing system? Ans: Disadvantages of File Processing Systems include: 1) Data Redundancy 2) Data Inconsistency 3) Difficult to acce
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