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What is assertion? Mention the forms available.
An assertion is a predicate expressing a condition that we wish the database always to satisfy.
Domain integrity constraints.
Referential integrity constraints
Hierarchical model is also known by? A hierarchical model is also known as a Tree structure.
Explain how the associations are implemented as classes. A general approach in this case is to transform an association class into a simple class linked to two original classes
What are the object-oriented approaches Software systems which are designed with structured design methodology never support some of desired quality attributes for example reus
a set of possible data value of an attribute is called??
Explain the term- Data Flows Data Flows: A data flow connects output of an object or process to input of another process or object. It represents an in-between data value wit
i want notes on this topic
what does glory be mean
All edges of a cube are expanding at a rate of 6 centimeters per second. How fast is the surface area changing when each edge is (a) 2 centimeters and (b) 10 centimeters?
differences between a classified catalog and a dictionary catalog
What are the aggregate objects in the data dictionary? Views Match codes Lock objects.
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