Question
Some primary keys have more than one field, and this has an impact not only on the PRIMARY KEY keyword, but also the FOREIGN KEY
Some primary keys have more than one field, and this has an impact not only on the PRIMARY KEY keyword, but also the FOREIGN KEY keyword.
Describe the semantics of these two keywords and how they operate together in Oracle Live. Be sure to describe what the items prevent in the case of a composite key scenario.
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Mastering Sql Joins A Quick Handbook On Mastering Sql Joins With Practical Exercises
Authors: Dane Wade
1st Edition
B0C881K3HR, 979-8398196542
