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A model in database system mostly defines the organisation of data or structure and a set of operations on that data. Relational model is a easy model in which database is represen
Cyber Transit Ltd keeps up-to-date information on the processing and current position of each dispatched item. Dispatched items are the main concern of the Cyber Transit product tr
Describe the Association: Design Before we describe association design let us define association "Association is set of links between two objects in the object model". It is
database help
Explain the concept of a data model ? Data Model - Model is an abstraction procedure which hides irrelevant details although highlighting details relevant to the application
We face problem of stock Opening balance and closing balance in Minus
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
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
What does conceptual design work? A conceptual design involves modelling independent of the DBMS.
How many levels can be viewed in Architecture of the database ? Architecture of the database can be viewed as three levels.
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