OCP认证题库：1Z0-051-003题

OCP认证题库：1Z0-051-003题：完整题库请点击这里联系老师咨询了解

You need to extract details of those products in the SALES table where the PROD_ID column

contains the string '_D123'.

Which WHERE clause could be used in the SELECT statement to get the required output?

A. WHERE prod_id LIKE '%_D123%' ESCAPE '_'

B. WHERE prod_id LIKE '%\_D123%' ESCAPE '\'

C. WHERE prod_id LIKE '%_D123%' ESCAPE '%_'

D. WHERE prod_id LIKE '%\_D123%' ESCAPE '\_'

Answer: B

试题解析：

ESCAPE子句为指定转译字符，因为‘_’下滑线在LIKE子句中指的是任意一个字符，所以需要把_’下滑线进行转译。