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What is Functional Dependency? A Functional dependency is shown by X Y among two sets of attributes X and Y that are subsets of R specifies a constraint on the possible tuple
1. Which model is used to store data in tree structures Ans: Hierarchical model is used to store data in tree structures
using the invoice table shown below,write the relational schema,draw a dependencies,inclunding all partial and transitive dependencies.assume that the table does not contain repeat
please i request for your assistance in developing a case-based online phone repair
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The State of NewYork certifies firefighters throughout state and keep track all of them, as well as of the state’s fire departments. Each fire department has unique department numb
case study
(a) Why did SAP introduce the extended star schema?
What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
each publisher has uniqe name a mial addrs are also kept on each pubisher.a publisher publish one book.a book publish y one publisher.book identified by isbn.each book writn by one
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