In Example 8.1.7 the result of the query SELECT
Chapter 8, Problem 24E(choose chapter or problem)
In Example 8.1.7 the result of the query SELECT Patient?ID#, Name FROM S WHERE Primary?Diagnosis = X is the projection onto the first two coordinates of the intersection of the set with the database.a. Find the result of the query SELECT Patient?ID#, Name FROM S WHERE Primary?Diagnosis = pneumonia.b. Find the result of the query SELECT Patient?ID#, Name FROM S WHERE Primary?Diagnosis = appendicitis.
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