如何获得过去 90 天的周一至周日日期？

Question

如何获取最近 90 天的周一至周日日期。

S.no    Start_dt    End_dt  week
1   18-Jul-16   24-Jul-16   Week1
2   25-Jul-16   31-Jul-16   Week2
3   1-Aug-16    7-Aug-16    Week3
4   8-Aug-16    14-Aug-16   Week4
5   15-Aug-16   21-Aug-16   Week5
6   22-Aug-16   28-Aug-16   Week6
7   29-Aug-16   4-Sep-16    Week7
8   5-Sep-16    11-Sep-16   Week8
9   12-Sep-16   18-Sep-16   Week9
10  19-Sep-16   25-Sep-16   Week10
11  26-Sep-16   2-Oct-16    Week11
12  3-Oct-16    9-Oct-16    Week12
13  10-Oct-16   16-Oct-16   Week13

我们需要使用 sysdate 作为输入。我正在尝试在下面查询 return 本周星期一，星期日日期

SELECT TRUNC(sysdate, 'D') +1 startofweek, TRUNC(sysdate, 'D') + 7 endofweek FROM dual;

Answer 1

select trunc(sysdate-(13-rownum)*7, 'iw') start_dt, trunc(sysdate-(12-rownum)*7, 'iw')-1 end_dt, 'week'||rownum week 
from dual 
connect by rownum<=90/7+1

如何获得过去 90 天的周一至周日日期？

How to get last 90 days monday to sunday date?

sql

oracle

oracle10g

oracle11g