OCP-1Z0-051-V9.02-92题

92. View the E xhibit and examine the data in the PROMO_NAME and PROMO_END_DATE columns of

the PROMOTIONS table, and the required output format.

Which two queries give the correct result? (Choose two.) 

A. SELECT promo_name, TO_CHAR(promo_end_date,'Day')   ', ' 

TO_CHAR(promo_end_date,'Month')   ' ' 

TO_CHAR(promo_end_date,'DD, YYYY') AS last_day

FROM promotions;

B. SELECT promo_name,TO_CHAR (promo_end_date,'fxDay')   ', ' 

TO_CHAR(promo_end_date,'fxMonth')   ' ' 

TO_CHAR(promo_end_date,'fxDD, YYYY') AS last_day

FROM promotions;

C. SELECT promo_name, TRIM(TO_CHAR(promo_end_date,'Day'))   ', ' 

TRIM(TO_CHAR(promo_end_date,'Month'))   ' ' 

TRIM(TO_CHAR(promo_end_date,'DD, YYYY')) AS last_day

FROM promotions;

D. SELECTpromo_name,TO_CHAR(promo_end_date,'fmDay')','  

TO_CHAR(promo_end_date,'fmMonth')   ' ' 

TO_CHAR(promo_end_date,'fmDD, YYYY') AS last_day

FROM promotions;

Answer: CD

答案解析：

参考：http://blog.csdn.net/rlhua/article/details/12832885

fm元素，用于删除填充的空格或隐藏前导零，TRIM也是截去字符串首字符或尾字符（或者两者都截去）

所有选CD