【OCP 071】最新OCP 12c题库考试原题(071-65题)
最新学讯:近期OCP认证正在报名中,因考试人员较多请尽快报名获取最近考试时间,报名费用请联系在线老师,甲骨文官方认证,报名从速!
我要咨询2018年OCP 11g考试原题解析已经讲解30多次课,500多道考试原题,最终达到98%以上的考题覆盖度及95%以上的考试通过率。
2019年OCP 11g将升级到12c,OCP 12c考试解析免费公开课也已经开始了,欢迎大家收看!
OCP解析公开课时间:【每周五晚8点】
OCP解析公开课地址:http://ke.qq.com/course/326223
OCP解析群资料分享:1015267481 验证:ocp
另外,除了OCP公开课,OCM题库直播也同步进行中,OCM最新题库大爆料-【每周四晚8点】,【微信群直播】,可以联系咨询老师进群参与
-------------------------------------------------------
65、(22-16) choose the best answer:
The CUSTOMERS table has the following structure:
You need to write a query that does the following tasks:
1. Display the first name and tax amount of the customers. Tax is 5% of their credit limit.
2. Only those customers whose income level has a value should be considered.
3. Customers whose tax amount is null should not be considered.
Which statement accomplishes all the required tasks?
A) SELECT cust_first_name, cust_credit_limit * .05 AS TAX_AMOUNT
FROM customers
WHERE (cust_income_level,tax_amount) IS NOT NULL;
B) SELECT cust_first_name, cust_credit_limit * .05 AS TAX_AMOUNT
FROM customers
WHERE cust_income_level IS NOT NULL AND
cust_credit_limit IS NOT NULL;
C) SELECT cust_first_name, cust_credit_limit * .05 AS TAX_AMOUNT
FROM customers
WHERE cust_income_level <> NULL AND
tax_amount <> NULL;
D) SELECT cust_first_name, cust_credit_limit * .05 AS TAX_AMOUNT
FROM customers
WHERE cust_income_level IS NOT NULL AND
tax_amount IS NOT NULL;
Answer:B
(解析:条件语句中不能用别名当做条件,该题的题意是税额不能为 0,所以只要 cust_credit_limit 不为 0,则保证税额不会为 0