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See the Exhibit and examine the structure of the PROMOTIONS table: Exhibit: Using the PROMOTIONS table, you need to find out the average cost for all promos in the range $0-2000 and $2000-5000 in category A. You issue the following SQL statements: Exhibit: What would be the outcome?
Correct Answer: B
Explanation/Reference: Explanation: CASE Expression Facilitates conditional inquiries by doing the work of an IF-THEN-ELSE statement: CASE expr WHEN comparison_expr1 THEN return_expr1 [WHEN comparison_expr2 THEN return_expr2 WHEN comparison_exprn THEN return_exprn ELSE else_expr] END