多选题You need to generate a list of all customer last names with their credit limits from the CUSTOMERS table. Those customers who do not have a credit limit should appear last in the list. Which two queries would achieve the required result?（）ASELECT cust_last_name, cust_credit_limit FROM customers ORDER BY cust_credit_limit DESCBSELECT cust_last_name, cust_credit_limit FROM customers ORDER BY cust_credit_limitCSELECT cust_last_name, cust_credit_limit FROM customers ORDER BY cust_credit_limit NULLS LASTDSELECT cust_last_name, cust_credit_limit FROM customers ORDER BY cust_last_name, cust_credit_limit NULLSLAST
多选题
You need to generate a list of all customer last names with their credit limits from the CUSTOMERS table. Those customers who do not have a credit limit should appear last in the list. Which two queries would achieve the required result?（）
A
SELECT cust_last_name, cust_credit_limit FROM customers ORDER BY cust_credit_limit DESC
B
SELECT cust_last_name, cust_credit_limit FROM customers ORDER BY cust_credit_limit
C
SELECT cust_last_name, cust_credit_limit FROM customers ORDER BY cust_credit_limit NULLS LAST
D
SELECT cust_last_name, cust_credit_limit FROM customers ORDER BY cust_last_name, cust_credit_limit NULLSLAST
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