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Explain the concept of Modeling With Objects
A model is a conceptual representation of a specification, design or system from a particular point of view. A modelling language is a way of expressing different models produces during development process. It is a collection of model elements. It is usually diagrammatic. It has
syntax - the rules that finds which diagrams are legal
semantics - the rules which determine what a legal diagram means.
Explain data abstraction? Data abstraction Data abstraction is a methodology in which enables us to isolate how a compound data object is utilized from the details of how it is
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Define about the Stored Procedure - It's a set of T-SQL statements combined together to perform a single task formed by combining numerous small tasks. - When you essentiall
The users who use easy-to-use menu are called ? The users who use easy to use menu are called as Naïve users.
Explain degree of relation? Degree of a Relation - The degree or arity of a relation is the number of attributes n of its relation schema.
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 com
Concurrency issues Data integrity: Threads accessing same object need to be synchronized, such as: banking account. Deadlock: One or more threads in system are perman
explain in detail about crash recovery
INSERT INTO command : Values can be inserted for all columns or for the selected columns Values can be given by sub query. In place of values parameter substitution
Explain Foreign Key? Foreign Key - Let there are two relations (tables) R and S. Any candidate key of the relation R that is referred within the relation S is known as the fo
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