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What are axioms?
Axioms or rules of inference give a simpler technique for reasoning about
Attributes having a one value for a particular entity. For instance, Age is a single valued attribute of a student entity. Attributes that have more than single values
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
Define the concept of Object Diagram An object diagram shows a set of the objects and their relationships with each other at a point of time. In a static view, object diagram
HOW TO SOLVE THE LP Problems by simplex method?z=x1+-3x2+2x3
What are the problems if one were not to normalize? When do these problems surface? Ans: Database normalization, sometimes considered to as canonical synthesis, is
what is Storage-Device Hierarchy question
Foreign Keys and NULL Let us take the relation: DEPT DEPT ID DNAME BUDGET D1 M
What does data dictionary is a special file contains ? The data dictionary is a special file contain The name of all fields in all files.The width of all fields in all files an
Describe the iterative and incremental life cycle For an iterative and incremental life cycle, two criteria are process and time. The main components of showing a project devel
what is cascading? what is rollback cascading? please explain in detail
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