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Explain the use of constraints in functional model with suitable example.
A constraint shows relationship between two objects at same time, or among various values of the same object at different times. A constraint can be expressed as a total function or as the partial function. For instance, a coordinate transformation may specify that scale factor for x-coordinate and the y-coordinate will be equal. This constraint completely defines one value in terms of the other values
Can you scan double-sided documents - and remove blank pages? Our software and imaging systems supports duplex scanning, at the same time scanning both sides of a page. Program
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real life situations where database management system are most suitable
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Can a filed occur in several field groups. Yes. But it leads to redundant data redundancy.
What types of adjustments are required to increase chances of inheritance. a) Some attributes can be added or ignored in the base class operation b) Some changes can be
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