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Given the following relations TRAIN (NAME, START, DEST) TICKET (PNRNO., START, DEST, FARE) PASSENGER (NAME, ADDRESS, PNRNO.) Write SQL expressions for the following queries: No
Explain the Natural join Natural join is a binary operator which is written as (R* S) in which R and S are relations. The effect of the natural join is the set of all combinati
Three way to handle missing field val
explain exhaustively the problems associated with ER diagrams. include illustrations in your answer
The figure below depicts the conceptual diagram of a banking system. (a) Describe one example relevant to the system in figure, for each of the 4 types of enterprise appl
explain thee diffrent types of data models
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
as a customer service employee, explain five measures you would recommend a displeased student to patronise a school canteen
Design a gennalization and specialization hierarchy for an automobile sales company
Explain the difference between optimistic locking and pessimistic locking. Optimistic locking supposes no transaction conflict will occur and deals with the consequences if it
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