Friday, September 18, 2015

Converting ER diagrams to Relational Model Part 2


Converting ER diagrams to Relational Model
(One-many relationship)

Add the primary key of the relation with the “1” as foreign key to the relation with the “n”.


The above 1-n relationship in the ER diagram can be converted to a relational model as follows:

Employee:

famName | givenName | salary | dName
          primary key (pk)               foreign key (fk)

Department:

dName | address
 pk


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