如何在oracle中顯示1周的日期？

Question

我被卡住了，請幫助我如何顯示每週的封面日期（例如星期一，星期二等）。請幫幫我。謝謝！

所需的採樣輸出：

Data,03/24/2014,Monday,20,Tuesday,30..... 
Data,03/31/2014,Monday,12,Tuesday,20..... 

這裏是我的腳本：

select 'Data' 
||','||to_char(d.dtime_day, 'MM/dd/yyyy') 
||','||nvl(g.total, 0) 
from tablename d 
left join (
     select trunc(t.create_time, 'IW') as ddate 
       ,count(t.create_time) as total 
     from tablename1 t 
     left join tablename2 q 
     on q.id = t.queue_id 
     where t.create_time between trunc(sysdate,'IW')-12*7 and sysdate -1 
     and q.name not like 'Data1%' 
     or q.name not like 'Data2%' 
     or q.name not like 'Data3%' 
     or q.name not like 'Data4%' 
     or q.name not like 'Data5%' 
     or q.name not like 'Data6%' 
     or q.name not like 'Data7%' 
     or q.name not like 'Data8%' 
     or q.name not like 'Data9%' 
     group by trunc(t.create_time, 'IW') 
) g on d.dtime_day = g.ddate 
where d.dtime_day between trunc(sysdate,'IW')-12*7 and trunc(sysdate) -1 
and trunc(d.dtime_day, 'IW')= d.dtime_day 
order by d.dtime_day; 

輸出腳本：

Data,03/24/2014,42 
Data,03/31/2014,25 

Answer 1

您也可以使用選擇一週中的一天TO_CHAR例如

select to_char(sysdate, 'Day') from dual;