Exam (elaborations)
Introduction to Oracle9i: SQL Exam ( 178 questions with 100% CORRECT ANSWERS) HIGH GRADES
- Course
- CS 6441
- Institution
- George Washington University
Question 1. When could an index decrease the speed of a query? A. The table is small. B. The column is used in a WHERE clause. C. The column contains a wide range of values. D. The column contains a large number of null values. Ans: A Question 2. What is the syntax for removing a PRIMARY KE...
[Show more]