تجمع SQL نتائج المستمر فترات زمنية (oracle sql)
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06-07-2019 - |
سؤال
مرحبا لدي البيانات التالية في الجدول:
ID-----بداية التأريخ----endDate
5549 2008-05-01 4712-12-31
5567 2008-04-17 2008-04-30 1
5567 2008-05-01 2008-07-31 1
5567 2008-09-01 4712-12-31 2
5569 2008-05-01 2008-08-31
5569 2008-09-01 4712-12-31
5589 2008-04-18 2008-04-30
5589 2008-05-01 4712-12-31
5667 2008-05-01 4712-12-31
5828 2008-06-03 4712-12-31
5867 2008-06-03 4712-12-31
6167 2008-11-01 4712-12-31
6207 2008-07-01 4712-12-31
6228 2008-07-01 4712-12-31
6267 2008-07-14 4712-12-31
أنا أبحث عن أنا الطريق إلى المجموعة المستمر فترات زمنية لكل معرف العودة:
ID ، مين(startDate), ماكس(endDate),
أن يكون شيئا مثل هذا في نتيجة الغامق ID 5567
5567 2008-04-17 2008-07-31
5567 2008-09-01 4712-12-31
PL/SQL هو أيضا خيار هنا :)
شكرا
المحلول
أعتقد هذا ما تحتاج إليه:(ملاحظة أنه سوف ربما الحصول على الخلط من جانب تداخل النطاقات;لا أعرف إذا كانوا ممكن في مجموعة البيانات الخاصة بك)
select id, min(start_date) period_start, max(end_date) period_end
from
(
select
id, start_date, end_date,
max(contig) over (partition by id order by end_date) contiguous_group
from
(
select
id, start_date, end_date,
case
when lag(end_date) over (partition by id order by end_date) != start_date-1 or row_number() over (partition by id order by end_date)=1
then row_number() over (partition by id order by end_date) else null end contig
from t2
)
)
group by id, contiguous_group
order by id, period_start
/
هنا هو اختبار البيانات التي اعتدت بناء على يدكم مع عدة مداخل اضافية:
create table t2 (id number, start_date date, end_date date);
insert into t2(id, start_date, end_date)values(5549, to_date('2008-05-01', 'yyyy-mm-dd'), to_date('4712-12-31', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(5567, to_date('2008-04-17', 'yyyy-mm-dd'), to_date('2008-04-30', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(5567, to_date('2008-05-01', 'yyyy-mm-dd'), to_date('2008-07-31', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(5567, to_date('2008-08-01', 'yyyy-mm-dd'), to_date('2008-08-14', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(5567, to_date('2009-09-01', 'yyyy-mm-dd'), to_date('4712-12-31', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(5567, to_date('2008-11-17', 'yyyy-mm-dd'), to_date('2008-12-13', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(5567, to_date('2008-12-14', 'yyyy-mm-dd'), to_date('2008-12-24', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(5569, to_date('2008-05-01', 'yyyy-mm-dd'), to_date('2008-08-31', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(5569, to_date('2008-09-01', 'yyyy-mm-dd'), to_date('4712-12-31', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(5589, to_date('2008-04-18', 'yyyy-mm-dd'), to_date('2008-04-30', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(5589, to_date('2008-05-01', 'yyyy-mm-dd'), to_date('4712-12-31', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(5667, to_date('2008-05-01', 'yyyy-mm-dd'), to_date('4712-12-31', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(5828, to_date('2008-06-03', 'yyyy-mm-dd'), to_date('4712-12-31', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(5867, to_date('2008-06-03', 'yyyy-mm-dd'), to_date('4712-12-31', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(6167, to_date('2008-11-01', 'yyyy-mm-dd'), to_date('4712-12-31', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(6207, to_date('2008-07-01', 'yyyy-mm-dd'), to_date('4712-12-31', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(6228, to_date('2008-07-01', 'yyyy-mm-dd'), to_date('4712-12-31', 'yyyy-mm-dd'));
insert into t2(id, start_date, end_date)values(6267, to_date('2008-07-14', 'yyyy-mm-dd'), to_date('4712-12-31', 'yyyy-mm-dd'));
commit;
نصائح أخرى
هل يمكن أن تفعل هذا مع الوظائف التحليليه مثل هذا:
with d as
( select id, start_date, end_date
, case when start_date = prev_end+1
then 'cont' else 'new' end start_status
, case when end_date = next_start-1
then 'cont' else 'new' end end_stat
from
(
select id, start_date, end_date
, lag(end_date) over (partition by id order by start_date) prev_end
, lead(start_date) over (partition by id order by start_date) next_start
from t1
order by id, start_date
)
)
select starts.id, starts.start_date, ends.end_date
from
( select id, start_date, row_number() over (order by id, start_date) rn
from d
where start_status='new'
) starts,
( select id, end_date, row_number() over (order by id, start_date) rn
from d
where end_status='new'
) ends
where starts.rn = ends.rn
يمكنني الحصول على هذه النتيجة مع البيانات الخاصة بك:
ID START_DATE END_DATE
---------- ---------- ----------
5549 2008-05-01 4712-12-31
5567 2008-04-17 2008-07-31
5567 2008-09-01 4712-12-31
5569 2008-05-01 4712-12-31
5589 2008-04-18 4712-12-31
5667 2008-05-01 4712-12-31
5828 2008-06-03 4712-12-31
5867 2008-06-03 4712-12-31
6167 2008-11-01 4712-12-31
6207 2008-07-01 4712-12-31
6228 2008-07-01 4712-12-31
6267 2008-07-14 4712-12-31
12 rows selected.
كيف يعمل:
- مع شرط يولد عرض د من البيانات حيث كل صف يتم تعيين "بدء حالة" و "نهاية الحالة" ، كل منها 'جديدة' أو 'cont' للإشارة إلى ما إذا كان هو مستمر مع السابق/الصف التالي أو لا.
- في خط وجهات النظر "يبدأ" و "الغايات" سحب فقط الصفوف التي تحتوي على "الجديد" بدء حالة / نهاية الحالة على التوالي ، مع صف عدد الزواج لهم.
- الرئيسي "الاستعلام" ثم يختار من هذه 2 الآراء و ينضم على الصف رقم العمود.
سيكون لديك لكتابة PL/SQL كتلة عينة المنطق أدناه ؛
Create or Replace someproc
Declare
Cursore someCur AS
Select * from someTable
Order by ID,StartDate
IDVar as Varchar(10)
MinDate as DATE
MaxDate as DATE
Begin
Open someCur
Fetch ID,StartDate,EndDate into IDVar,MinDate,MaxDate
While SomeCur%NOTFOUND
LOOP
Fetch ID,StartDate,EndDate into TempID,TempStartDate,TempEndDate
if IDVar <> TempID then
-- output into your required structure values: IDVar,MinDate,MaxDate
IDVar = TempID
MinDate = TempStartDate
MaxDate = TempEndDate
Exit Loop
ELSE IF
MaxDate+1 >= TempStartDate THEN
MaxDate = TempEndDate
END IF
End LOOP
أنا لست بالقرب مثيل لاختبار لكن هل حاولت ،
SELECT
ID,
startDate,
endDate
FROM
myTable
WHERE
(ID, startDate) in
(SELECT
ID,
min(startDate)
FROM
myTable
GROUP BY
ID
)
or
(ID, endDate) in
(SELECT
ID,
max(endDate)
FROM
myTable
GROUP BY
ID
)
هذا يجب أن تعطيك جميع أقرب startDate
s, وأحدث endDate
s لكل معرف.مستمر أم لا.
WITH
laik_test AS -- sample data
(select 1001 id, date'2012-01-03' start_date, date'2012-06-29' end_date from dual union
select 1001 id, date'2012-03-03' start_date, date'2012-08-29' end_date from dual union
select 1002 id, date'2012-06-03' start_date, date'2012-11-29' end_date from dual union
select 1001 id, date'2012-09-03' start_date, date'2013-02-20' end_date from dual union
select 1001 id, date'2013-02-08' start_date, date'2013-04-29' end_date from dual union
select 1002 id, date'2012-11-03' start_date, date'2012-12-29' end_date from dual union
select 1002 id, date'2012-12-23' start_date, date'2013-09-29' end_date from dual union
select 1002 id, date'2013-08-03' start_date, date'2015-06-29' end_date from dual union
select 1001 id, date'2013-04-13' start_date, date'2013-09-29' end_date from dual union
select 1001 id, date'2013-07-03' start_date, date'2014-06-29' end_date from dual union
select 1003 id, date'2012-12-23' start_date, date'2013-09-29' end_date from dual union
select 1001 id, date'2013-07-03' start_date, date'2014-06-29' end_date from dual union
select 1003 id, date'2012-12-23' start_date, date'2013-09-29' end_date from dual union
select 1003 id, date'2013-09-30' start_date, date'2014-06-29' end_date from dual union
select 1003 id, date'2013-12-30' start_date, date'2014-03-11' end_date from dual union
select 1003 id, date'2014-06-29' start_date, date'2015-09-29' end_date from dual )
, matrica AS
( select id, start_date, end_date
, lead(start_date) over (partition by id order by start_date, end_date) start_date_next
, lag(end_date) over (partition by id order by start_date, end_date) end_date_prev
from laik_test m
where not exists (select *
from laik_test n
where m.id = n.id
and m.start_date > n.start_date and m.end_date < n.end_date))
, matrica2 AS
(select id, end_date
from matrica m
where start_date_next is null OR start_date_next > end_date + 1)
, matrica3 AS
(select id, start_date
from matrica m
where end_date_prev is null OR end_date_prev < start_date - 1)
, matrica4 AS
(select m2.id, m3.start_date, m2.end_date
from matrica2 m2, matrica3 m3
where m2.id=m3.id and m3.start_date < m2.end_date)
select id, start_date, end_date
from matrica4 m
where not exists (select * from matrica4 n
where m.id = n.id
and ( (n.start_date = m.start_date and m.end_date > n.end_date)
OR (n.end_date = m.end_date and m.start_date < n.start_date)
));
النتائج:
ID | start_date | end_date
1001 | 2012-01-03 | 2012-08-29
1001 | 2012-09-03 | 2014-06-29
1002 | 2012-06-03 | 2015-06-29
1003 | 2012-12-23 | 2015-09-29
لقد كنت تحاول القيام به منذ تداخل النطاقات ولكن الحصول على بعض difficuly مع هذه البيانات :
INSERT INTO zzz_scrap_dates (id,effdate,termdate)
SELECT id,effdate,termdate from (
SELECT '1'id ,To_Date('2000-01-01','YYYY-MM-DD')effdate,To_Date('2020-01-31','YYYY-MM-DD')termdate FROM dual
UNION
SELECT '1'id ,To_Date('2000-01-01','YYYY-MM-DD')effdate,To_Date('2010-01-31','YYYY-MM-DD')termdate FROM dual
UNION
SELECT '1'id ,To_Date('2005-01-01','YYYY-MM-DD')effdate,To_Date('2020-01-31','YYYY-MM-DD')termdate FROM dual
UNION
SELECT '1'id ,To_Date('2000-01-01','YYYY-MM-DD')effdate,To_Date('2020-01-31','YYYY-MM-DD')termdate FROM dual
UNION
SELECT '1'id ,To_Date('1999-01-01','YYYY-MM-DD')effdate,To_Date('2020-01-31','YYYY-MM-DD')termdate FROM dual
union
SELECT '2'id ,To_Date('2000-01-01','YYYY-MM-DD')effdate,To_Date('2020-01-31','YYYY-MM-DD')termdate FROM dual
UNION
SELECT '2'id ,To_Date('2000-01-01','YYYY-MM-DD')effdate,To_Date('2010-01-31','YYYY-MM-DD')termdate FROM dual
UNION
SELECT '2'id ,To_Date('2005-01-01','YYYY-MM-DD')effdate,To_Date('2020-01-31','YYYY-MM-DD')termdate FROM dual
UNION
SELECT '2'id ,To_Date('2000-01-01','YYYY-MM-DD')effdate,To_Date('2020-01-31','YYYY-MM-DD')termdate FROM dual
UNION
SELECT '2'id ,To_Date('1999-01-01','YYYY-MM-DD')effdate,To_Date('2020-01-31','YYYY-MM-DD')termdate FROM dual
union
SELECT '3'id ,To_Date('2000-01-01','YYYY-MM-DD')effdate,To_Date('2020-01-31','YYYY-MM-DD')termdate FROM dual
UNION
SELECT '3'id ,To_Date('1998-01-01','YYYY-MM-DD')effdate,To_Date('1999-01-31','YYYY-MM-DD')termdate FROM dual
UNION
SELECT '3'id ,To_Date('1005-01-01','YYYY-MM-DD')effdate,To_Date('1197-01-31','YYYY-MM-DD')termdate FROM dual
UNION
SELECT '3'id ,To_Date('2000-01-01','YYYY-MM-DD')effdate,To_Date('2020-01-31','YYYY-MM-DD')termdate FROM dual
UNION
SELECT '3'id ,To_Date('1197-01-01','YYYY-MM-DD')effdate,To_Date('2020-01-31','YYYY-MM-DD')termdate FROM dual