Foreign keys allow you to create relationships among tables and enforce certain types of ____________________ constraints in a database.
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Q39: If you combine the two tables shown
Q40: When designing a database,you might find it
Q42: For each table in a database,you must
Q45: If you have alternate keys for a
Q46: _ means that an entity has a
Q47: In the standard E-R diagrams,relationships are drawn
Q49: A subtype is also called a(n) _
Q51: The _ design method begins with a
Q53: The style of E-R diagram used in
Q55: If a many-to-many-to-many relationship is created when
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