Choose two

Examine the data in the CUST NAME column of the CUSTOMERS table:

CUST_NAME

Renske Ladwig

Jason Mallin

Samuel McCain

Allan MCEwen

Irene Mikkilineni

Julia Nayer

You want to display the CUST_NAME values where the last name starts with Mc or MC.

Which two WHERE clauses give the required result?

A) WHERE INITCAP (SUBSTR(cust_name, INSTR(cust_name,' ') +1 ) ) IN ('MC%', 'Mc%)

B) WHERE UPPER (SUBSTR(cust_nane, INSTR(cust_name, ' ') +1 ) ) LIKE UPPER('MC%')

C) WHERE INITCAP(SUBSTR(cust_nane, INSTR(cust_name,' ') +1 ) ) LIKE 'Mc%'

D) WHERE SUBSTR(cust_name,INSTR(cust_name,' ') +1 ) LIKE 'Mc%' OR 'MC%'

E) WHERE SUBSTR(cust_name, INSTR(cust_name,' ') +1 ) LIKE 'Mc%'

Anser：BC

(解析：原来第 66 题，此题的变化是多了 Answer：B。注意 instr 和 substr 的用法，没有实验还是很难理解的。

Answer：C