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