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State the Component Diagram
A component diagram represents a set of component and relationships among them. In a dynamic model, component diagram is used to model physical components for example executable releases, databases, libraries, adaptable systems or files. It has components, interfaces, subsystems, packages, generalization, association, dependency, and relationship. The notation for components and relationship among components is shown as:
Consider the entity type dependent related to employee entity, which is used to keep track of the dependents of every employee. The attributes of dependents are: name, sex, birth d
Rearrange the Execution Order for Efficiency Rearranging execution order for efficiency means executing such job that requires less execution time. By rearranging the object
Define tuple variable Tuple variable is a type of variable whose domain is the set of all tuples.
What are the several forms of identity? a) Value b) Name c) Built-in
#what is cursor its uses ? Explain it
What is trigger Triggers are statements that are implemented automatically by the system as the side effect of a change to the database.
What is a state chart diagram? State diagrams (State Chart Diagram) explain all possible states that a particular object can get into, and how object's state changes as result
What is known as a search key? An attribute or set of attributes used to look up records in a file is known as a search key.
What is object containment? References among objects can be used to model dissimilar real-world concepts.
Attribute Preservation This is a easy and obvious necessity that includes preserving all the attributes that were there in the relation that is being decomposed.
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