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What types of adjustments are required to increase chances of inheritance.
a) Some attributes can be added or ignored in the base class operation
b) Some changes can be made in derived class from abstract class.
c) If an operation is not required by few classes in a group, then could it be
declared as no-operation.
d) Similar attributes can be combined in the abstract base class.
Given the following set of functional dependencies {cf→ bg, g → d, cdg → f, b → de, d → c} defined on R(b,c,d,e,f,g) a. Is cf→ e implied by the FDs? b. Is dg a superkey?
Order by clause By using this rows can be sorted It is used in the last portion of select statement By default it gets ascending order DESC: is used
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Make SQL statements for the following scenarios. Your response should contain SQL statement, output and any other assumptions you have made to arrive at the answer. For Colorado cu
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Have database built but having problems with some questions that go with the database
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While sorting, if the main storage available is not enough, the system writes data to an external help file. The SAP profile parameter, which determines DIR_SORTTMP
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