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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 indicating how, why or when values are compounded. For illustration a spreadsheet is type of functional model. The values in a spreadsheet could be calculated by using some formula, but it cannot be structured further.
Consider a relation s over the attributes A and B with the following characteristics: 5,000 tuples with 10 tuples per page A 2-level B+ tree index on attribute
Why containment is important in oosystems? Containment is an significant concept in oosystems because it allows dissimilar users to view data at different granularities.
what factors might influence a company to outsource its IT infrascture.
Define what Immediate database modification technique uses? Ans: Both undo and redo.
Explain entity integrity and referential integrity rules within relational model. Show how these are realized in SQL? Entity Integrity Rule - No primary key value could be nu
Which component is not included in database environment ? A users component is not included in database environment.
What is meant by mean time to failure? The mean time to failure is the amount of time that the system could run continuously without failure.
Adding Redundant Associations for Efficient Access The expression redundant association means using "duplicate association for proficient access". While analysis, it is not a
define normalisation and functional dependency
What is recovery management component? Ensuring durability is the responsibility of a software component of the base system known as the recovery management component.
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