data model assignment logical data modeling
I’ve attached a “Employment Agencies” data model. List the following below in the MS Word document.
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- all the attributes in each entity
- the primary key for each entity
- all the foreign keys
- all the relationship cardinalities between entities (e.g., a professor can teach one to many classes; an individual class is taught by one and only one professor)
- for each relationship between entities, specify the name of the attribute in one entity that will be used to match to an attribute in a related entity, including the specific attribute name in the second entity that is used for the matching. For instance, in a school data model: “The Student_ID attribute in the Registered_Class entity is used to match to the Student_ID attribute in the Enrolled_Student entity.”
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