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What does authentication refer? Authentication refers to the task of verifying the uniqueness of a person.
what is check point in database management system
case study
Insertion Anomaly: Inability to show certain information-The primary key of the over relation be (enrolment number, Cno). Any new tuple to be inserted in the relation should have
Although how will the system recover The selection of REDO or UNDO for a transaction for the recovery is completed on the basis of the state of the transactions. This state is
What is Interaction Diagram An interaction diagram shows an interaction, comprises of a set of objects and their relationships including the messages that may be dispatched be
What is conceptual model ? A conceptual model is a independent of both hardware and software.
er diagram on cosmetics.
The Internal or Physical Level The collection of files permanently stored on secondary storage devices is called as the physical database. The internal or physical level is t
Explain in details about the f unctions of DBA ?
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