中文OCP 071考试题库(cuug整理)第30题

Posted 2021-05-18 cnblogs_5359

本套题库是OCP考试中的071(中文版)试题，由CUUG整理，如有报考OCP认证意向，可以联系cuug咨询老师。

30、请选择两项。

CUSTOMERS表有一个数据类型为NUMBER的CUST_CREDIT_LIMIT列。

哪两个查询将, 成功执行?

A) SELECT TO_CHAR(NVL(cust_credit_limit * .15, \'Not Available\')) FROM customers;

B) SELECT NVL(TO_CHAR(cust_credit_limit * .15), \'Not Available\') FROM customers;

C) SELECT NVL2(cust_credit_limit * .15, \'Not Available\') FROM customers;

D) SELECT NVL(cust_credit_limit * .15, \'Not Available\') FROM customers;

E) SELECT NVL2(cust_credit_limit, TO_CHAR(cust_credit_limit * .15), \'Not Available\') FROM customers;