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Explain I command in QBE ? I : It is the command in QBE that is used to insert tuple (s) into the database
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Law Associates is a large legal practice based in Sydney. You have been asked to design a data model for the practice based upon the following specification: The practice employs
What is the used of specifying alias? Specifying alias: is used to rename column or attribute in a table.
Database systems have many opposite efforts ?
explain exhaustively the problems associated with ER diagrams. include illustrations in your answer
Use of partial data by applications : In common, applications work with views rather than whole relations. Thus, it may be more appropriate to work with subsets of relations rather
i need to implememnt a treee based mining algorithm. do you have an expert that can do that?
What is a recursive relationship? Give an example not used in the text. A recursive relationship is a relationship among an entity and itself. For example, given the entity PER
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
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