OCP考试题库：11g-1Z0-051-v9.02-016题

OCP考试题库：11g-1Z0-051-v9.02-016题，完整题库请点击这里联系老师咨询了解

16. Evaluate the following query:

SQL> SELECT promo_name q'{'s start date was }' promo_begin_date

AS "Promotion Launches"

FROM promotions;

What would be the outcome of the above query?

A. It produces an error because flower braces have been used.

B. It produces an error because the data types are not matching.

C. It executes successfully and introduces an 's at the end of each promo_name in the output.

D. It executes successfully and displays the literal " {'s start date was } " for each row in the output.

Answer: C

试题解析：

实验验证：

sh@TEST1107> SELECT promo_name|| q'{'s start date was }'|| promo_begin_date AS "Promotion Launches" FROM promotions;

Promotion Launches

------------------------------------------------------------------

NO PROMOTION #'s start date was 01-JAN-99

newspaper promotion #16-108's start date was 23-DEC-00

post promotion #20-232's start date was 25-SEP-98

newspaper promotion #16-349's start date was 10-JUL-98

internet promotion #14-471's start date was 26-FEB-00

TV promotion #13-448's start date was 06-AUG-00