_______________________________ is a technique where the attributes are grouped to form entity supertypes and subtypes.
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Q148: A(n) _ relationship is where many instances
Q149: A(n) _ entity is an entity that
Q150: A(n) _ key is a primary key
Q151: _ relationships are those in which each
Q152: _ is an approach that seeks to
Q154: A _ is an entity whose instances
Q155: A _ is an entity whose instances
Q156: Another name for an alternate key is
Q157: A _ is an attribute (or concatenated
Q158: A(n) _ data model contains only entities
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