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Explain trivial dependency?
Functional dependency of the form α ->β. is trivial if α C β. Trivial functional dependencies are satisfied by all the relations.
Define According to the levels of abstraction, the schema at the intermediate level is called Ans: As per to the levels of abstraction, the schema at the intermediate level is
Which method is used to key transformation ? A hash method is used to key transformation.
Need for Client Server Computing- Client/Server (C/S) architecture includes running the application on multiple machines in which every machine with its component software tackles
What is meant by normalization of data? It is a process of examining the given relation schemas based on their Functional Dependencies (FDs) and primary key to achieve the prop
What is trigger? Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
i want to database for online assignment submission system
What are the differences among MySQL_fetch_array(), MySQL_fetch_object(), MySQL_fetch_row()? Mysql_fetch_object returns the result from the database like objects while mysql
a set of possible data value of an attribute is called??
State The position of object at any moment is called state. An object can have many states depend upon time. After receiving some input instructions, the object can change its
Define reference file
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