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Explain the Fundamental concepts of object-orientation
Software developers, data base administrators (DBAs) need to be familiar with fundamental concepts of object-orientation. The object-oriented (OO) paradigm is a development strategy based on concept which systems should be built from a collection of reusable components known as objects. Instead of separating functionality and data as is done in structured paradigm, objects encompass both. While object oriented paradigm sounds similar to structured paradigm, but it is actually quite different. An ordinary mistake which many experienced developers make is to applying same software-engineering principles to OO design. To get success one must recognize that OO approach is different from the structured approach
What are the two methods for dealing deadlock problem? The two procedures for dealing deadlock problem is deadlock detection and deadlock recovery.
The Update Operations : Update operations are used for altering database values. The constraint violations faced by this operation are logically the similar as the problem faced
Explain the Functional Mode with help of an example. Functional Model The functional model shows a computation and functional derivation of data values in it without ind
The JOIN operation is applied on two relations. When we want to choose related tuples from two given relation join is used. The join operation need that both the joined relations m
Why 'AS' clause is used in SQL ? 'As' clause is used for Rename operation. ‘AS' clause is used in SQL for rename operation. (e.g., SELECT ENO AS EMPLOYEE_NO FROM EMP)
Which two files are used during operation of the DBMS? Data dictionary and transaction log are two files used during operation of the DBMS.
Question : (a) Differentiate between database integrity and database security (b) Database security involves measures to avoid loss of privacy and loss of confidentiality. D
Consider the subsequent relation Professor (Pfcode, dept, head, time) It is assumed that (i) A professor can work in much more than one
#question. Draw a picture of a moving source and the waves surrounding it according to what you observed in this experiment. How does the spacing of the wave-fronts in front of the
need to get answer for questions 3&4 on this page in part 1
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