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Unformatted text preview: Entity-relationship diagram-Unique id is identified in each database set and represented by # -If there is no one object that can make a unique identifier in the database set it is called as weak -...
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This note was uploaded on 01/20/2012 for the course BIS 310 taught by Professor Staff during the Spring '10 term at The University of Akron.
- Spring '10
- Business Information Systems