我在Oracle中有一个查询报告,如下所示:
SELECT TRUNC (created_dt) created_dt
, COUNT ( * ) AllClaims
, SUM(CASE WHEN filmth_cd in ('T', 'C') THEN 1 ELSE 0 END ) CT
, SUM(CASE WHEN filmth_cd = 'W' THEN 1 ELSE 0 END ) Web
, SUM(CASE WHEN filmth_cd = 'I' THEN 1 ELSE 0 END ) Icon
FROM claims c
WHERE c.clsts_cd NOT IN ('IN', 'WD')
AND TRUNC (created_dt) between
to_date('1/1/2006', 'dd/mm/yyyy') AND
to_date('1/1/2100', 'dd/mm/yyyy')
GROUP BY TRUNC (created_dt)
ORDER BY TRUNC (created_dt) DESC;
它会返回如下数据:
Create_Dt AllClaims CT Web Icon
1/26/2011 675 356 285 34
1/25/2011 740 322 379 39
...
我需要的是一个结果集,它将所有每日值汇总为每周值。我是PL / SQL的新手,不知道从哪里开始。
答案 0 :(得分:4)
像
这样的东西SELECT TRUNC (created_dt, 'IW') created_dt
, COUNT ( * ) AllClaims
, SUM(CASE WHEN filmth_cd in ('T', 'C') THEN 1 ELSE 0 END ) CT
, SUM(CASE WHEN filmth_cd = 'W' THEN 1 ELSE 0 END ) Web
, SUM(CASE WHEN filmth_cd = 'I' THEN 1 ELSE 0 END ) Icon
FROM claims c
WHERE c.clsts_cd NOT IN ('IN', 'WD')
AND TRUNC (created_dt) between
to_date('1/1/2006', 'dd/mm/yyyy') AND
to_date('1/1/2100', 'dd/mm/yyyy')
GROUP BY TRUNC (created_dt, 'IW')
ORDER BY TRUNC (created_dt, 'IW') DESC;
将根据ISO周的第一天汇总数据。
答案 1 :(得分:1)
这是一个我经常使用的简单示例:
SELECT
TO_CHAR(created_dt,'WW'),
max(created_dt),
COUNT(*)
from MY_TABLE
group by
TO_CHAR(created_dt,'WW');
to_char(created_dt,'WW')创建组,max(created_dt)显示一周的最后一天。如果要显示一周的第一天,请使用min(created_dt)。