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ADVANCE OBJECT DESIGN
Introduction
Analysis is the initial step of the OMT methodology. It is apprehensive with devising a precise, concise, correct and understandable model of real world.
Such as, before building any complex thing, for example a bridge, a house, or a hardware-software system the builder must understand requirement of user, and it is also important to know the real world environment in that it will exist
Describe different steps of the object-oriented design process. The broad steps of the object-oriented design process are: a. Define context and modes of use of the system
What are the uses of ODBC? Under what circumstances we use this technology? ODBC expose database capabilities within a standardized way to the application programmer by an ap
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
Special comparison operator used in where Clause a. between. ...and...It gives range among two values (inclusive) Example: SELECT ENAME, SAL FROM EMP WHERE SAL BETWE
explain the steps for reduction of er model into relational model?
I need help in doing my dbms project
Question: This form represents one of a number used for each sailing of a range of boats. A passenger may go on many sailings and will have the same passenger number for each.
Eliminate Columns Not Dependent On Key The Employee Relation satisfies - First normal form - As it has no repeating groups. Second normal form - As it do not have multi-a
#questiontypes of keys examples..
explain exhausitively the problems associated with er diagrams with ellustrations
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