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What is a primary index?
A primary index is an index whose search key also explains the sequential order of the file.
What is the use of keyword ISA? The use of keyword ISA is to show that a class is a specialization of another class.
Distributed Database Management System
Clustering Indexes It may be an excellent idea to keep data of the students in the order of the programme they have registered as most of the data file accesses may need studen
What is the need for triggers? Triggers are useful mechanisms for alerting humans or for starting particular tasks automatically when particular conditions are met.
Describe Graphical User Interface? Graphical User Interfaces (GUIs) - A GUI typically displays a schema to the user in diagrammatic form. The user can then specify a query th
A distributed database is defined as "a collection of multiple logically interrelated database which are physically distributed over a computer network" (a) Give any three advan
Mention the various user privileges All privileges directly granted to the user or role. All privileges granted to roles that have been granted to the user or role.
A student entity type has the following attributes,name..
Define average seek time. The average seek time is the average of the seek times, calculated over a sequence of random requests.
the of super market system done in database
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