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Illustrate how you can use QBE to perform logical AND and OR operation
Super keys of a relation can have extra attributes. Candidate keys are minimal super key, i.e. such a key have no extraneous attribute. An attribute is known as extraneous if even
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational mo
Design a gennalization and specialization hierarchy for an automobile sales company
Define reference file
Explain the EXEC statement in SQL Ans: All statements which start with EXEC SQL are embedded SQL database statements. High level languages such as C can be employed to write a
a project based on normalization with first, second and third normalization. There need to be a diagram also
Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a pictori
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?
Which method is used to key transformation ? A hash method is used to key transformation.
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