如何在oracle中显示1周内的天数？

Question

我卡住了，请帮助我如何显示每周的封面天数（例如星期一、星期二等）。请帮我。谢谢！

所需的样本输出：

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

这是我的脚本：

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;

脚本的输出：

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

Answer 1

您还可以使用 to_char 选择星期几，例如

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