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Implementing software control
To implement software control designer must redesign strategy of state event model which is present in dynamic model.
There are three basic approaches to implement dynamic model. These approaches are as given:
i) Storing the state of the program as location within a program, i.e. as a procedure driven system
ii) Direct implementation of the state machine mechanism i.e. event driver
iii) With the help of concurrent tasks.
In object oriented design, which steps must designer take to adjust inheritance? To readjust inheritance following steps should be taken: i) Rearrange and adjust the classe
WOUND-WAIT
What are the states of transaction? The states of transaction are:- a) Active b) Partially committed c) Failed d) Aborted e )Committed f) Terminated
What is persistency? Persistency ensures which data is stored and that after the object is no longer available (program stops running) the data will be available to other users
What is Cardinality Ratio? Cardinality Ratios - The cardinality ratios for relationship kinds specifies the maximum number of relationship instances in which an entity can pa
Entity types that do not have any key attribute, and therefore cannot be identified independently, are known as weak entity types. A weak entity can be recognized uniquely only by
What is hash file organization? What are the causes of bucket overflow within a hash file organization? What can be completed to decrease the occurrence of bucket overflow?
Can we delete data element, which is being used by table fields. No we cant delete data element.
Identify the need and use of data control through problem solving, illustration
Question : (a) Differentiate between database integrity and database security (b) Database security involves measures to avoid loss of privacy and loss of confidentiality. D
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