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Which model is record based logical model? Network Modelis basically known as record based logical model.
A student entity type has the following attributes,name..
What are the different kinds of database end users? Discuss the major activities of each? End-Users - End-users are the people whose jobs need access to the database for que
Describe the nested-loop join and block-nested loop join. Ans: The block nested- loop join algorithm is as described below: for every block B r of relation R do beg
What is the way a particular application views the data from the database that the application uses? Sub schema is the way a particular application views the data from the data
What is a Built-in A notation of identity is built-into the data model or programming language and no user-supplied identifier is needed. This form of identity is used in objec
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
#what is cursor its uses ? Explain it
Which method of access uses key transformation? A Hash method of access uses key transformation.
case study
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