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Explain view in RDBMS? View - A view is a relation (virtual rather than base) and could be used in query expressions, which is, queries can be written by using the view as a re
What is trigger? Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
Which model is record based logical model? Network Modelis basically known as record based logical model.
what is difference between circular inked lust and grunded linked list
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
Which file organization provides very fast access to any arbitrary record of a file? Hashed file organization provides very fast access to any arbitrary record of a file.
What are the properties of transaction? There are three properties of transactions :- A) Atomicity B) Consistency C) Isolation
Unrepeatable reads : Assume T7 reads X twice during its implementation. If it did not update X itself it could be very disturbing to see a dissimilar value of X in its next read. B
Explain Interfaces for parametric Users? Interfaces for Parametric Users - Parametric users, such as bank tellers, frequent have a little set of operations in which they must p
Authorisation Authorisation is the culmination of the administrative policies of the organisation. As the name shows, authorisation is a set of rules that can be used to verif
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