Reg: query logic.
Hi Experts,
I have a requirement of query which am not able to achieve correctly-
2 tables like this:
WITH t1 AS)
SELECT the 1 id, cm_dt of TO_DATE('04.04.2014','dd.mm.yyyy') OF double UNION ALL
SELECT 2 id, TO_DATE('01.11.2013','dd.mm.yyyy') cm_dt FROM dual UNION ALL
SELECT 2 id, TO_DATE('29.09.2013','dd.mm.yyyy') cm_dt FROM dual UNION ALL
Select 3 id, to_date('17.05.2013','dd.mm.yyyy') cm_dt of the double
)
t2 AS)
SELECT the 1 id, TO_DATE('04.05.2014','dd.mm.yyyy') fh_dt, ov 'b', 'a' double UNION ALL nv
SELECT 1 id, TO_DATE('21.05.2014','dd.mm.yyyy'), 'y', 'x' FROM dual UNION ALL
SELECT 2 id, TO_DATE('01.10.2013','dd.mm.yyyy'), 'r', 'e' FROM dual UNION ALL
SELECT the id 2, TO_DATE('15.10.2013','dd.mm.yyyy'), 'x', 'q' FROM dual UNION ALL
SELECT 2 id, TO_DATE('29.03.2014','dd.mm.yyyy'), 'f', 'b' FROM dual
)
My requirement is :
Check - 1
For each ID of "t1", need to check in 't2' If a record exists. If the 'id' doesn't exist, you need to select another table called "table_y". Here, T1.ID = 3
Check the box - 2
If the ID exists, for each 'id' and T1. CM_DT - is any record in T2 where (T1.id = T2.id and T1. CM_DT < T2. Take FH_DT) then the OV (old value) of the last record.
Otherwise, if no such folder i.e. all have T1. CM_DT > T2. FH_DT - take NV (new value) of the first record.
Expected results :
1 04.04.2014 b
2 01.11.2013 q
2 29.09.2013 r
3 17.05.2013 < some value from another table >
My try and try again...
WITH t1 AS)
SELECT the 1 id, cm_dt of TO_DATE('04.04.2014','dd.mm.yyyy') OF double UNION ALL
SELECT 2 id, TO_DATE('01.11.2013','dd.mm.yyyy') cm_dt FROM dual UNION ALL
SELECT 2 id, TO_DATE('29.09.2013','dd.mm.yyyy') cm_dt FROM dual UNION ALL
Select 3 id, to_date('17.05.2013','dd.mm.yyyy') cm_dt of the double
)
t2 AS)
SELECT the 1 id, TO_DATE('04.05.2014','dd.mm.yyyy') fh_dt, ov 'b', 'a' double UNION ALL nv
SELECT 1 id, TO_DATE('21.05.2014','dd.mm.yyyy'), 'y', 'x' FROM dual UNION ALL
SELECT 2 id, TO_DATE('01.10.2013','dd.mm.yyyy'), 'r', 'e' FROM dual UNION ALL
SELECT the id 2, TO_DATE('15.10.2013','dd.mm.yyyy'), 'x', 'q' FROM dual UNION ALL
SELECT 2 id, TO_DATE('29.03.2014','dd.mm.yyyy'), 'f', 'b' FROM dual
)
------
x AS
(SELECT
T1.ID, t1.cm_dt, t2.fh_dt, nv, ov,
ROW_NUMBER() over (PARTITION BY t2.id ORDER BY fh_dt asc) Clotilde,
MIN (T2.fh_dt) on min_dt (PARTITION BY t2.id),
Max (T2.fh_dt) on max_dt (PARTITION BY t2.id)
T1 LEFT JOIN t2 ON (t1.id = t2.id)
)
--------
SELECT distinct
x.ID, x.cm_dt, x.fh_dt,
(CASE WHEN cm_dt < = min_dt THEN)
(SELECT t2.ov FROM t2 WHERE t2.id = AND t2.fh_dt x.id = x.min_dt)
ON THE OTHER
(SELECT t2.ov FROM t2 WHERE t2.id = AND t2.fh_dt x.id = x.min_dt)
Chk1 END)
X
ORDER BY id, cm_dt
Please give some guidance. Help much appreciated.
-Nordine
(on Oracle 11.2.0.3.0)
I think it's something like what you are looking for (if you had provided details of the 'other' table you want to get the values of, then I could have tried integrate this logic in this query, rather than do something using the double table!):
WITH t1 AS (SELECT 1 id, TO_DATE('04.04.2014','dd.mm.yyyy') cm_dt FROM dual UNION ALL
SELECT 2 id, TO_DATE('01.11.2013','dd.mm.yyyy') cm_dt FROM dual UNION ALL
SELECT 2 id, TO_DATE('29.09.2013','dd.mm.yyyy') cm_dt FROM dual UNION ALL
select 3 id, to_date('17.05.2013','dd.mm.yyyy') cm_dt from dual),
t2 AS (SELECT 1 id, TO_DATE('04.05.2014','dd.mm.yyyy') fh_dt, 'a' nv,'b' ov FROM dual UNION ALL
SELECT 1 id, TO_DATE('21.05.2014','dd.mm.yyyy') , 'x','y' FROM dual UNION ALL
SELECT 2 id, TO_DATE('01.10.2013','dd.mm.yyyy') , 'e','r' FROM dual UNION ALL
SELECT 2 id, TO_DATE('15.10.2013','dd.mm.yyyy') , 'q','x' FROM dual UNION ALL
SELECT 2 id, TO_DATE('29.03.2014','dd.mm.yyyy') , 'b','f' FROM dual),
res as (select t1.id,
t1.cm_dt,
t2.fh_dt,
t2.nv,
t2.ov,
min(case when t2.fh_dt > t1.cm_dt then t2.fh_dt end) over (partition by t2.id, t1.cm_dt) min_t2_fh_dt_past_cm_dt,
max(case when t2.fh_dt < t1.cm_dt then t2.fh_dt end) over (partition by t2.id, t1.cm_dt) max_t2_fh_dt_pre_cm_dt,
coalesce(max(case when t2.fh_dt < t1.cm_dt then t2.fh_dt end) over (partition by t2.id, t1.cm_dt),
min(case when t2.fh_dt > t1.cm_dt then t2.fh_dt end) over (partition by t2.id, t1.cm_dt)) comparison_dt
from t1,
t2
where t1.id = t2.id (+))
select id,
cm_dt,
case when comparison_dt is null then (select 'zzz' from dual)
when comparison_dt > cm_dt then ov
when comparison_dt < cm_dt then nv
end replacement_value
from res
where comparison_dt is null
or comparison_dt = fh_dt;
ID CM_DT REPLACEMENT_VALUE
---------- ---------- --------------------------------
1 04/04/2014 b
2 29/09/2013 r
2 01/11/2013 q
3 17/05/2013 zzz
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P4 A1 4000
I need to find the sum of the value of reduction of the workforce for each PLAN_ID which is parent root. In the case above, this is the argument PLAN_ID P1 (WHERE PARENT_PLAN_ID IS NULL). Please note that the value of the downsizing is repeated in the tb2 table. For example, the PLAN_ID P2 argument, the value of the downsizing is 5000 and not 5000 + 5000 + 5000.
The result of the output for the above data must be
THE ARGUMENT PLAN_ID DRAWDOWN
P1 19000
Published by: user10566312 on October 30, 2012 12:30with t as ( select t1.plan_id,t1.parent_plan_id,max(t2.DRAWDOWN) DRAWDOWN from tb1 t1,tb2 t2 where t1.plan_id = t2.plan_id(+) group by t1.plan_id,t1.parent_plan_id ) select plan_id,sum(drawdown) drawdown from( select connect_by_root plan_id as plan_id, nvl(DRAWDOWN,0) DRAWDOWN from t start with parent_plan_id is null connect by parent_plan_id = prior plan_id ) group by plan_id ; PLAN_ID DRAWDOWN ------- -------- P1 19000Published by: JAC on October 30, 2012 13:23
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