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This ER diagram will be used for the following questions citing ABC Retailer ER Diagram.How many columns will the relation PROMOTION have in the relational

This ER diagram will be used for the following questions citing ABC Retailer ER Diagram.How many columns will the relation PROMOTION have in the relational schema mapped from the ABC Retailer ER diagram?

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Advances In Databases And Information Systems 14th East European Conference Adbis 2010 Novi Sad Serbia September 2010 Proceedings Lncs 6295

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