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Single Valued Normalisation Codd in the year 1972 formed three normal forms (1NF, 2NF, and 3NF). These were based on functional dependencies between the attributes of a relati
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
compare the features of oracle RDBMS with MySQL and Microsoft SQL server
What is horizontal fragmentation? Horizontal fragmentation divides the relation by assuming every tuple of r to one or more fragments
Benefits of using heuristics
Define the step - Rearranging the Execution Order for Efficiency As we know that algorithm and data structure are closely related to one another, but data structure is conside
What is called a query -execution engine? The query implementation engine takes a query evaluation plan, implements that plan, and returns the answers to the query.
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
Determine the Derived attribute to avoid re-computation Each class box consists of an ordered list of attributes and operations, each represented as a next string. We can find
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