Suppose that you have the ERM shown in Figure Q3.14. During some time interval, a Driver can
Question:
During some time interval, a Driver can drive many Trucks and any Truck can be driven by many Drivers
How would you convert this model into an ERM that displays only 1:M relationships? (Make sure that you draw the revised ERM.)
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Step by Step Answer:
The Crows Foot solution is shown in Figure Q314a Note that the original MN relationship has been dec...View the full answer
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Related Book For 
Database Systems Design Implementation and Management
ISBN: 978-1285196145
11th edition
Authors: Carlos Coronel, Steven Morris
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