Question

星期一到星期日为止如何获得最后90天。

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。我正在尝试下面查询它返回当前周一周日，周日日期

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

星期一到星期日如何获得最后90天？

1 个答案: