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Class Diagram
A class diagram is required to support functional necessity of system. In a static design view, class diagram is used to model vocabulary of the system, simple collaboration and logical schema. It consists of sets of classes, interfaces, collaborations, dependency and generalization and association relationship. The notation for classes and the relationship among classes is shown as:
Figure: Relationship among classes
BCNF Boyce-Codd Normal Form A relation schema R is in BCNF if it is in 3NF and accepts an additional constraint that for every FD X A, X has to be a candidate key. If a relati
List the drawbacks of relational database system A) Repetition of data B) Inability to s certain information.
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design a generalization specialization hierarchy for a motor vehicle sales company. the company sells motorcycles, passenger cars, vens and buses.
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In the first unit of this block, you have been given with the details of the Database Management System, its structure, advantages etc. This unit is an attempt to give you informat
Class Diagram A class diagram is required to support functional necessity of system. In a static design view, class diagram is used to model vocabulary of the system, simple c
Retrieve the S&S In-Chapter Database (in Microsoft Access format) from the text's Web site (or create the tables in Table 4-5 in a relational DBMS product). Write queries to answer
Explain the conventions (relationships) for displaying an ER schema as an ER diagram.
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