I have a calendar query and a table below. I have a StartDate and end date for a member. Also on my calendar table I have captured a "Weekof" based on the startDate. I would like to capture if a member is active anytime during that weekof. See expected results.
SELECT DISTINCT
--CA.CALENDAR_DATE,
TO_CHAR(CALENDAR_DATE,'MM/DD/YYYY') AS CALENDAR_DATE
TO_CHAR(NEXT_DAY(CALENDAR_DATE, 'Monday') - 7, 'MM/DD/YY-') ||
TO_CHAR(NEXT_DAY(CALENDAR_DATE, 'Monday') - 1, 'MM/DD/YY') AS WEEK_OF_YEAR,
ROW_NUMBER () OVER ( ORDER BY CALENDAR_DATE) AS MasterCalendar_RNK
FROM CALENDAR CA
WHERE 1=1
--AND CA.CALENDAR_DATE BETWEEN ADD_MONTHS(TRUNC(SYSDATE), -12) AND TRUNC(SYSDATE)
--AND CA.CALENDAR_DATE BETWEEN TRUNC(SYSDATE) -5 AND TRUNC(SYSDATE)
ORDER BY TO_DATE(CALENDAR_DATE,'MM/DD/YYYY') DESC
Table
Member StartDate EndDate
A 1/31/17
B 2/1/17 2/15/17
Expected output:
Member StartDate EndDate Week_Of_Year Active
A 1/31/17 1/30/17-2/5/17 1
A 1/31/17 2/6/17-2/12/17 1
A 1/31/17 2/13/17-2/19/17 1
B 2/1/17 2/15/17 1/30/17/2/5/17 1
B 2/1/17 2/15/17 2/6/17-2/12/17 1
B 2/1/17 2/15/17 2/13/17-2/19/17 1
Current Query:
WITH MASTER_CALENDAR AS (
SELECT TRUNC(SYSDATE) + 1 - LEVEL , A.CALENDAR_DATE
FROM (SELECT C.CALENDAR_DATE FROM MST.CALENDAR C WHERE 1=1 AND C.CALENDAR_DATE > SYSDATE-30 AND C.CALENDAR_DATE < SYSDATE) A
WHERE 1=1
CONNECT BY LEVEL <= 1 --NEED TO UPDATE?
ORDER BY A.CALENDAR_DATE DESC
),
ActiveMembers AS (
SELECT H.CLT_CLT_PGMID, H.START_DT
,CASE WHEN TRUNC(H.END_DT) = '1-JAN-3000'
THEN SYSDATE
ELSE TO_DATE(H.END_DT)
END AS END_DT
FROM H
WHERE 1=1
AND H.CLT_CLT_PGMID IN ('1','2','3')
)
SELECT CLT_CLT_PGMID, STARTDATE, ENDDATE, WEEK_OF_YEAR, ACTIVE -- but not week_start
FROM (
SELECT DISTINCT A.CLT_CLT_PGMID,
TO_CHAR(A.START_DT, 'MM/DD/YY') AS STARTDATE,
TO_CHAR(A.END_DT, 'MM/DD/YY') AS ENDDATE,
NEXT_DAY(CAL.CALENDAR_DATE, 'Monday') - 7 AS WEEK_START, -- for ordering later
TO_CHAR(NEXT_DAY(CAL.CALENDAR_DATE, 'Monday') - 7, 'MM/DD/YY-') ||
TO_CHAR(NEXT_DAY(CAL.CALENDAR_DATE, 'Monday') - 1, 'MM/DD/YY') AS WEEK_OF_YEAR,
1 AS ACTIVE
FROM ActiveMembers A
INNER JOIN MASTER_CALENDAR CAL ON CAL.CALENDAR_DATE BETWEEN A.START_DT AND A.END_DT
--BETWEEN TO_CHAR(A.START_DT,'MM/DD/YYYY') AND COALESCE(A.END_DT,(SYSDATE))
)
WHERE 1=1
ORDER BY
CLT_CLT_PGMID , STARTDATE, ENDDATE, WEEK_START
;
Since the calendar query currently generates strings, it would be simpler to go back to the calendar table, join that to your member/date table, and regenerate the week range string:
With CTEs to represent your calendar table (just with dates for the last few weeks for now) and member data:
with calendar(calendar_date) as (
select trunc(sysdate) + 1 - level from dual connect by level <= 42
),
mytable (member, startdate, enddate) as (
select cast('A' as varchar2(6)), date '2017-01-31', cast (null as date) from dual
union all select cast('B' as varchar2(6)), date '2017-02-01', date '2017-02-15' from dual
)
select member, startdate, enddate, week_of_year, active -- but not week_start
from (
select distinct m.member,
to_char(m.startdate, 'MM/DD/YY') as startdate,
to_char(m.enddate, 'MM/DD/YY') as enddate,
next_day(c.calendar_date, 'Monday') - 7 as week_start, -- for ordering later
to_char(next_day(c.calendar_date, 'Monday') - 7, 'MM/DD/YY-') ||
to_char(next_day(c.calendar_date, 'Monday') - 1, 'MM/DD/YY') as week_of_year,
1 as active
from mytable m
join calendar c
on c.calendar_date between m.startdate and coalesce(m.enddate, trunc(sysdate))
)
order by member, startdate, enddate, week_start;
gets
MEMBER STARTDAT ENDDATE WEEK_OF_YEAR ACTIVE
------ -------- -------- ----------------- ----------
A 01/31/17 01/30/17-02/05/17 1
A 01/31/17 02/06/17-02/12/17 1
A 01/31/17 02/13/17-02/19/17 1
A 01/31/17 02/20/17-02/26/17 1
B 02/01/17 02/15/17 01/30/17-02/05/17 1
B 02/01/17 02/15/17 02/06/17-02/12/17 1
B 02/01/17 02/15/17 02/13/17-02/19/17 1
You haven't specified an upper limit for members with no end-date, so I've used today, via coalesce().
The inner query is only needed for ordering, as the week range string can't be used, and you don't want to see the week start on its own; and you can't use distinct and order by a field you aren't selecting.
I'd do this in a similar way to Alex, but slightly different. Seeing as your weeks start with a Monday, I'd use TRUNC(dt, 'iw') to get the ISO start of the week (which happens to be defined as a Monday) for the specified date. Then I'd get the distinct values of those before joining to your table, like so:
with calendar as (select trunc(sysdate) - level + 1 calendar_date
from dual
connect by level <= 50),
your_table as (select 'A' member, date '2017-01-31' startdate, NULL enddate from dual union all
select 'B' member, date '2017-02-01' startdate, date '2017-02-15' enddate from dual)
select yt.member,
yt.startdate,
yt.enddate,
to_char(c.week_start, 'mm/dd/yyyy')
|| ' - ' || to_char(c.week_start + 6, 'mm/dd/yyyy') week_of_year,
1 as active
from your_table yt
inner join (select distinct trunc(cl.calendar_date, 'iw') week_start
from calendar cl) c on c.week_start <= nvl(yt.enddate, SYSDATE) AND c.week_start + 6 >= yt.startdate
order by yt.member,
c.week_start;
MEMBER STARTDATE ENDDATE WEEK_OF_YEAR ACTIVE
------ ---------- ---------- ----------------------- ----------
A 01/31/2017 01/30/2017 - 02/05/2017 1
A 01/31/2017 02/06/2017 - 02/12/2017 1
A 01/31/2017 02/13/2017 - 02/19/2017 1
A 01/31/2017 02/20/2017 - 02/26/2017 1
B 02/01/2017 02/15/2017 01/30/2017 - 02/05/2017 1
B 02/01/2017 02/15/2017 02/06/2017 - 02/12/2017 1
B 02/01/2017 02/15/2017 02/13/2017 - 02/19/2017 1
Like Alex, I've assumed your null enddate runs up until today (sysdate). However, looking at your results for member B, it looks like you're looking for an overlapping range (since 30th Jan is not between 1st and 15th Feb), so I've amended my join clause accordingly. This results in an extra row for member A, so maybe you're wanting to run null enddates up until the previous Sunday of sysdate? Not sure. I'm sure you'll be able to amend that yourself, if you need to.
I'm having trouble trying to wrap my head around how to write this query to calculate the occupancy level of a hotel and then list the results by date. Consider the following type of data from a table called reservations:
Arrival Departure Guest Confirmation
08/01/2015 08/05/2015 John 13234
08/01/2015 08/03/2015 Bob 34244
08/02/2015 08/03/2015 Steve 32423
08/02/2015 08/02/2015 Mark 32411
08/02/2015 08/04/2014 Jenny 24422
Output Data would ideally look like:
Date Occupancy
08/01/2015 2
08/02/2015 4
08/03/2015 2
08/04/2015 1
08/02/2015 0
And the query should be able to utilize a date range as a variable. I'm having trouble getting the obviously hardest piece of how to both get the count per night and spitting it out by date.
You can generate a list of dates first. In Oracle you can do this by using connect by. This will make a recursive query. For instance, to get the next 30 days, you can select today and keep connecting until you've got the desired number of days. level indicates the level of recursion.
select trunc(sysdate) + level - 1 as THEDATE
from dual
connect by level <= 30;
On that list, you can query the number of reservations for each day in that period:
select THEDATE,
(select count(*)
from reservations r
where r.Arrival >= THEDATE and
r.Departure < THEDATE) as RESERVATIONCOUNT
from
( select trunc(sysdate) + level - 1 as THEDATE,
from dual
connect by level <= 30)
Instead of getting a fixed number of dates, you can also get another value there, for instance, to get at least 30 days in the future, but further if there are reservations for later..:
select THEDATE,
(select count(*)
from reservations r
where r.Arrival >= THEDATE and
r.Departure < THEDATE) as RESERVATIONCOUNT
from
( select trunc(sysdate) + level - 1 as THEDATE,
from dual
connect by
level <= greatest(30, (select trunc(max(DEPARTURE) - sysdate)
from reservations)))
I have gone through a similar post in Stack overflow...
but my query is :
If my table generates a flag in run time execution,then how can I increase Grp_number(generate run time) every time my flag changes.
my Oracle query:
Select emp_id,
Case when MOD(rownum/3)=1 and rownum>1 then 'Y' else 'N' as flag
from Transaction_table
Desired o/p Data format:
emp_id Flag GRP_number
1 N 1
2 N 1
3 N 1
4 Y 2
5 N 2
6 N 2
7 Y 3
You cannot reference a column in another column in the same select list. You need to use sub query to avoid INVALID IDENTIFIER error.
Do it like -
WITH DATA AS(
SELECT emp_id,
CASE
WHEN MOD(rownum/3)=1
AND rownum >1
THEN 'Y'
ELSE 'N' AS flag
FROM Transaction_table
)
SELECT emp_id, flag, SUM(gap) over (PARTITION BY person
ORDER BY DAY) grp
FROM(
SELECT emp_id, flag,
CASE WHEN flag = lag(flag) over (PARTITION BY person
ORDER BY DAY)
THEN 0
ELSE 1
END gap
FROM DATA)
I have a calendar table in which there are all the dates in the future and a workday field:
fld_date / fld_workday
2014-01-01 / 1
2014-01-02 / 1
2014-01-03 / 0
...
I want select a date which are n workday far from another date. I tried two ways, but i failed:
The 5th workday from 2014-11-07:
1.
SELECT n1.fld_date FROM calendar as n1 WHERE n1.fld_workday=1 AND
(select count(*) FROM calendar as n2 WHERE n2.fld_date>='2014-11-07' AND n2.fld_workday=1)=5
It gave back 0 row.
2.
SELECT fld_date FROM calendar WHERE fld_date>='2014-11-07' AND fld_workday=1 LIMIT 1 OFFSET 5
It's ok, but i would like to change the 5 days constant to a field, and it's cannot (it would be inside a bigger select statement):
SELECT fld_date FROM calendar WHERE fld_date>='2014-11-07' AND fld_workday=1 LIMIT 1 OFFSET fld_another_field
Any suggestion?
In the first query, the subquery does not refer to the row in n1.
You need a correlated subquery:
SELECT fld_Date
FROM Calendar AS n1
WHERE fld_WorkDay = 1
AND (SELECT COUNT(*)
FROM Calendar AS n2
WHERE fld_Date BETWEEN '2014-11-07' AND n1.fld_Date
AND fld_WorkDay = 1
) = 5
LIMIT 1
The subquery is extremly inefficient if there is no index on the fld_Date column.
You can avoid executing the subquery for every row in n1 by adding another condition with an estimate of the result date (assuming that there are between about four to five work days per week, and using a few extra days to be sure):
...
WHERE fldDate BETWEEN date('2014-11-07', (5 * 4/7 - 10) || ' days')
AND date('2014-11-07', (5 * 5/7 + 10) || ' days')
AND fldWorkDay = 1
AND (SELECT ...
I have the records using the query
SELECT trunc(createdon,'hh') CREATEDON,count(*)
FROM WHERE LABSTATUS=1 AND
CREATEDON >=TO_DATE('01/07/2010 10','DD/MM/YYYY hh')
GROUP BY trunc(createdon,'hh')
in an hourly basis.. I need to place the count value in corresponding time column in the grid.
How can I do?? any idea
You can do it like this:
Hours are in columns
SELECT TRUNC(createdon,'hh'), SUM(CASE WHEN hh=1 THEN 1 ELSE 0) h1,
SUM(CASE WHEN hh=2 THEN 1 ELSE 0) h2 .....
FROM TABLle1,
(SELECT 1 AS hh FROM dual
UNION
SELECT 2 AS hh FROM dual
UNION
SELECT 3 AS hh FROM dual
....
) hours
WHERE LABSTATUS=1 AND CREATEDON >=TO_DATE('01/07/2010 10','DD/MM/YYYY hh') AND
TRUNC(createdon,'hh')= hours.hh
GROUP BY TRUNC(createdon,'hh')
Hours are in rows:
SELECT hours.hh, SUM(CASE WHEN TRUNC(createdon,'hh')= hours.hh THEN 1 ELSE 0 END) hh,
FROM TABLle1,
(SELECT 1 AS hh FROM dual
UNION
SELECT 2 AS hh FROM dual
UNION
SELECT 3 AS hh FROM dual
....
) hours
WHERE LABSTATUS=1 AND CREATEDON >=TO_DATE('01/07/2010 10','DD/MM/YYYY hh')
GROUP BY hours.hh
This query will result like this
row 1 12
row 2 0
row 3 4
...