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Describe Dynamic Model.
The dynamic model specifies allowable sequences of changes to the objects from an object model. It contains event trace diagrams describing scenarios. An event is the external stimulus from one object to other that occurs at a particular point of time. An event is one-way transmission of information from one object to other. A scenario is sequence of events which occurs during one particular execution of the system. Each fundamental execution of the system shall be represented as a scenario.
What is Identity? Identity (or AutoNumber) is a column that automatically produces numeric values. A start and increment value can be set, but most DBA leave these at 1. A GUID
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Which sorting technique is used to sort databases, whose sizes are very big? Give one such algorithm. Why do sorting techniques like quicksort, insertion sort, etc. not applied
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Define Network DBMS The NDBMS is built primarily on a one-to-many relationship, but where a parent-child representation between the data items cannot be ensured. This may occur
Advantages and disadvantages of icloud based storage
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