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Science-Related Homework Help Computer Studies Topic started by: shaerovira on Feb 13, 2019



Title: When changing the minimum cardinality on the parent side of the relationship from zero to one, the ...
Post by: shaerovira on Feb 13, 2019
When changing the minimum cardinality on the parent side of the relationship from zero to one, the foreign key ________.

• must be changed from NULL to NOT NULL

• must be changed from NOT NULL to NULL

• must be changed to a composite key

• must be changed to a surrogate key


Title: When changing the minimum cardinality on the parent side of the relationship from zero to one, the ...
Post by: mace on Feb 13, 2019
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Title: When changing the minimum cardinality on the parent side of the relationship from zero to one, the ...
Post by: shaerovira on Feb 13, 2019
Thanks