54. View the Exhibit and examine the structure of the CUSTOMERS table. Evaluate the query statement: SQL> SELECT cust_last_name, cust_city, cust_credit_limit      FROM customers      WHERE cust_last_name BETWEEN 'A' AND 'C' AND cust_credit_limit BETWEEN                                              1000 AND 3000;

What would be the outcome of the above statement?

A. It executes successfully. B. It produces an error because the condition on CUST_LAST_NAME is invalid. C. It executes successfully only if the CUST_CREDIT_LIMIT column does not contain any null values. D. It produces an error because the  AND operator cannot be used to combine multiple BETWEEN clauses. Answer: A 執行上述查詢語句

[email protected]> SELECT cust_last_name, cust_city, cust_credit_limit   2  FROM customers    3  WHERE cust_last_name BETWEEN 'A' AND 'C' AND cust_credit_limit BETWEEN   4  1000 AND 3000 and rownum<6; CUST_LAST_NAME                           CUST_CITY                      CUST_CREDIT_LIMIT ---------------------------------------- ------------------------------ ----------------- Aaron                                    Pune                                        1500 Aaron                                    Diss                                        3000 Aaron                                    Hoofddorp                                   1500 Aaron                                    Stockport                                   3000 Aaron                                    Hyderabad                                   1500