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Database Systems 6th Edition by Ramez Elmasri, Shamkant B. Navathe
Edition 6ISBN: 0136086209Database Systems 6th Edition by Ramez Elmasri, Shamkant B. Navathe
Edition 6ISBN: 0136086209 Exercise 4
Example of GEOMETRY_OBJECTS
GEOMETRY_OBJECT: Shape, Area, Reference_point
Figure 10.2
Adding operations to the definitions of EMPLOYEE and DEPARTMENT.
-Convert the example of GEOMETRY_OBJECTS given in section 10.1.5 from the functional notation to the notation given in Figure 10.2 that distinguishes between attributes and operations. Use the keyword INHERIT to show that one class inherits from another class.
GEOMETRY_OBJECT: Shape, Area, Reference_point
Figure 10.2Adding operations to the definitions of EMPLOYEE and DEPARTMENT.
-Convert the example of GEOMETRY_OBJECTS given in section 10.1.5 from the functional notation to the notation given in Figure 10.2 that distinguishes between attributes and operations. Use the keyword INHERIT to show that one class inherits from another class.
Explanation
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(GEOMETRY_OBJECTS to attribute/operation...
Database Systems 6th Edition by Ramez Elmasri, Shamkant B. Navathe
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