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Explain group By clause in SQL? Group By clause in SQL: The GROUP BY clause can be used in a SELECT statement to collect data across multiple records and group the results thro
I have a small project that contains 3 deliverable s. I have done the first one and I would like you to help me with second one
Define average seek time. The average seek time is the average of the seek times, calculated over a sequence of random requests.
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Evaluate: a.When transactions T1 and T2 are in a deadlock, one of the transactions will eventually implement to completion and let the other one continue implementation. b.
explain the level architectures of the database management system
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What is difference between primary index and secondary index? Primary Index a) It is an ordered file whose records are of fixed length along with two fields. b) Only base
Define cardinality and participation constraints on a relationship type, completeness constraint on generalization. Ans: Cardinality defines the number of entities to wh
explain exhaustively the problems associated with ER diagrams. include illustrations in your answer
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