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State The position of object at any moment is called state. An object can have many states depend upon time. After receiving some input instructions, the object can change its
What is the most significant feature that does not directly map into programming language structures? Why? Association, since there are complex types of association, like as qu
Problem: (a) Given the following relation: Stats(Name,Sex,Children, Occupation, Salary, Tax, Audits) Write SQL code to define the following security constraints: (i) User
DROP TABLE Command: When an existing object is not needed for further use, it is always better to eliminate it from the database. To remove the existing object from the databas
i need to implememnt a treee based mining algorithm. do you have an expert that can do that?
Determine the concept of Process Process: A process transforms the data values. It is represented as ellipse containing a description of transformation. Each procedure has a
What is the use of rename operation? Rename operation is used to rename both relations and an attributes. It uses the as clause, taking the form: Old-name as new-name.
Attributes and its types explain?
A database is a set of data. But, is the data kept in a database trustworthy? To answer that query we must first answer the question. What is integrity? Integrity simply means t
What are axioms? Axioms or rules of inference give a simpler technique for reasoning about
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