(单选题)
变量v_time=’23-MAY-00’, 如下那条语句返回值为’01-JAN-00’?()
Aselect round(v_time,’DAY’) from dual
Bselect round(v_time,’YEAR’) from dual
Cselect round(v_time,’MONTH’) from dual
DA select round(to_char(v_time,’yyyy’)) from dual
正确答案
答案解析
略
Aselect round(v_time,’DAY’) from dual
Bselect round(v_time,’YEAR’) from dual
Cselect round(v_time,’MONTH’) from dual
DA select round(to_char(v_time,’yyyy’)) from dual