I need help with a t-sql query.
I have a table with this structure:
id | OverallRank | FirstRank | SecondRank | Nrank..
1 | 10 | 20 | 30 | 5
2 | 15 | 24 | 12 | 80
3 | 10 | 40 | 37 | 12
I need a query that produces this kind of result:
When id: 1
id | OverallRank | BestRankLabel | BestRankValue | WorstRankLabel | WorkRankValue
1 | 10 | SecondRank | 30 | Nrank | 5
When id: 2
id | OverallRank | BestRankLabel | BestRankValue | WorstRankLabel | WorkRankValue
1 | 15 | FirstRank | 24 | SecondRank | 12
How can I do it?
Thanks in advance
with cte(id, RankValue,RankName) as (
SELECT id, RankValue,RankName
FROM
(SELECT id, OverallRank, FirstRank, SecondRank, Nrank
FROM ##input) p
UNPIVOT
(RankValue FOR RankName IN
(OverallRank, FirstRank, SecondRank, Nrank)
)AS unpvt)
select t1.id, max(case when RankName = 'OverallRank' then RankValue else null end) as OverallRank,
max(case when t1.RankValue = t2.MaxRankValue then RankName else null end) as BestRankName,
MAX(t2.MaxRankValue) as BestRankValue,
max(case when t1.RankValue = t3.MinRankValue then RankName else null end) as WorstRankName,
MAX(t3.MinRankValue) as WorstRankValue
from cte as t1
left join (select id, MAX(RankValue) as MaxRankValue from cte group by id) as t2 on t1.id = t2.id
left join (select id, min(RankValue) as MinRankValue from cte group by id) as t3 on t1.id = t3.id
group by t1.id
Working good with your test data. You should only edit RankName IN (OverallRank, FirstRank, SecondRank, Nrank) by adding right columns' names.
CASE
WHEN OverallRank > FirstRank and OverallRank > FirstSecondRand and OverallRank > nRank THEN 'OverallRank'
WHEN FirstRank > OverallRank ... THEN 'FirstRank'
END
This kind of query is why you should normalise your data.
declare #id int, #numranks int
select #id = 1, #numranks = 3 -- number of Rank columns
;with cte as
(
select *
from
(
select *,
ROW_NUMBER() over (partition by id order by rank desc) rn
from
(
select * from YourBadlyDesignedTable
unpivot (Rank for RankNo in (FirstRank, SecondRank, ThirdRank))u -- etc
) v2
) v1
where id=#id and rn in (1, #numranks)
)
select
tMin.id,
tMin.OverallRank,
tMin.RankNo as BestRankLabel,
tMin.Rank as BestRankValue,
tMax.RankNo as WorstRankLabel,
tMax.Rank as WorstRankValue
from (select * from cte where rn=1) tMin
inner join (select * from cte where rn>1) tMax
on tMin.id = tmax.id
You can take out the id = #id if you want all rows.
Related
ID|Class | Number
--+------+---------
1 | 1 | 58.2
2 | 1 | 85.4
3 | 2 | 28.2
4 | 2 | 55.4
The desired result would be:
Column1 |Number | Column2 | Number
--------+-------+---------+---------
1 | 58.2 | 2 |28.2
1 | 85.4 | 2 |55.4
What would be the required SQL?
You can user row_number() and aggregate:
select 1, max(case when seqnum % 2 = 1 then number end),
2, max(case when seqnum % 2 = 0 then number end)
from (select t.*,
row_number() over (partition by class order by id) as seqnum
from t
) t
group by ceiling(seqnum / 2.0);
The aggregation uses arithmetic to put pairs of rows for each class into one row.
try this
SELECT 1 AS Column1,t2.Number,2 AS Column2,t1.Number
FROM
(
SELECT *
FROM test11
) t2
INNER JOIN
(
SELECT *
FROM test11
) t1
ON t1.Class = t2.Class
WHERE t1.ID < t2.ID
ORDER BY t1.ID DESC
Demo in db<>fiddle
My first time writing a recursive CTE in SQL to calculate the rolling returns.
Formula : 100*(1+Returns) for first value, and then (RollingReturns)*(1+Returns)
The table is as below:
+----+--------+--------+----------------+
| ID | Date | Return | RollingReturns |
+----+--------+--------+----------------+
| 1 | 1/1/20 | 0.50% | 100.5 |
| 1 | 1/2/20 | 1.00% | 101.51 |
| 1 | 1/3/20 | -0.7% | 100.74 |
| 1 | 1/4/20 | 0.50% | 101.25 |
+----+--------+--------+----------------+
My attempt at writing the SQL query:
WITH rn_cte AS (
SELECT ROW_NUMBER() OVER (ORDER BY DATE ASC) AS RN, DATE
FROM TABLE WHERE ID = 1
ORDER BY RN
)
rr_cte
AS
(
SELECT RN,P.DATE,RETURNS,RETURNS AS ROLLINGRETURNS
FROM TABLE P
JOIN rn_cte ON rn_cte.DATE = p.DATE
WHERE P.ID = 1 AND RN = 1
UNION ALL
SELECT RN,pm.DATE,pm.RETURNS,(rr_cte.ROLLINGRETURNS)*(1+pm.RETURNS) AS ROLLINGRETURNS
FROM TABLE pm WHERE pm.ID = 1
JOIN rr_cte ON rr_cte.RN = pm.RN+1
ORDER BY pm.DATE ASC
)
SELECT *
FROM rr_cte
It gives me an error, not sure what is wrong in it.
Error
^found "RR_CTE" (at char 145) expecting `SELECT' or `'(''
Any help is appreciated.
Thanks in advance!
You want something like this:
WITH rn AS (
SELECT ROW_NUMBER() OVER (PARTITION BY id ORDER BY DATE ASC) AS RN, t.*
FROM TABLE t
WHERE ID = 1
),
cte AS (
SELECT rn.rn, rn.id, rn.date, return,
100 * (1 + rn.return) as rollingreturn
FROM rn
UNION ALL
SELECT rn.rn, rn.id, rn.date, rn.return,
cte.rollingreturn * (1 + rn.return)
FROM cte JOIN
rn
ON cte.id = rn.id AND rn.rn = cte.rn + 1
)
SELECT *
FROM cte;
I have a table with below data
+------+------------+-----------+
| id | date1 | people |
+------+------------+-----------+
| 1 | 2017-01-01 | 10 |
| 2 | 2017-01-02 | 109 |
| 3 | 2017-01-03 | 150 |
| 4 | 2017-01-04 | 99 |
| 5 | 2017-01-05 | 145 |
| 6 | 2017-01-06 | 1455 |
| 7 | 2017-01-07 | 199 |
| 8 | 2017-01-08 | 188 |
+------+------------+-----------+
now what i am trying to do is to display 3 consecutive rows where people were >=100 like this
+------+------------+-----------+
| id | date1 | people |
+------+------------+-----------+
| 5 | 2017-01-05 | 145 |
| 6 | 2017-01-06 | 1455 |
| 7 | 2017-01-07 | 199 |
| 8 | 2017-01-08 | 188 |
+------+------------+-----------+
can anyone help me how to do this query using oracle database. I am able to display rows which are above 100 but not in a consecutive way
Table creation(reducing typing time for people who will be helping)
CREATE TABLE stadium
( id int
, date1 date, people int
);
Insert into stadium values (
1,TO_DATE('2017-01-01','YYYY-MM-DD'),10);
Insert into stadium values
(2,TO_DATE('2017-01-02','YYYY-MM-DD'),109);
Insert into stadium values(
3,TO_DATE('2017-01-03','YYYY-MM-DD'),150);
Insert into stadium values(
4,TO_DATE('2017-01-04','YYYY-MM-DD'),99);
Insert into stadium values(
5,TO_DATE('2017-01-05','YYYY-MM-DD'),145);
Insert into stadium values(
6,TO_DATE('2017-01-06','YYYY-MM-DD'),1455);
Insert into stadium values
(7,TO_DATE('2017-01-07','YYYY-MM-DD'),199);
Insert into stadium values(
8,TO_DATE('2017-01-08','YYYY-MM-DD'),188);
Thanks in advance for the help
Assuming you mean >= 100, there are a couple of ways. One method just uses lead() and lag(). But a simple method defines each group >= 100 by the number of values < 100 before it. Then it uses count(*) to find the size of the consecutive values:
select s.*
from (select s.*, count(*) over (partition by grp) as num100pl
from (select s.*,
sum(case when people < 100 then 1 else 0 end) over (order by date) as grp
from stadium s
) s
) s
where num100pl >= 3;
Here is a SQL Fiddle showing that the syntax works.
You can use the following sql script to get the desired output.
WITH partitioned AS (
SELECT *, id - ROW_NUMBER() OVER (ORDER BY id) AS grp
FROM stadium
WHERE people >= 100
),
counted AS (
SELECT *, COUNT(*) OVER (PARTITION BY grp) AS cnt
FROM partitioned
)
select id , visit_date,people
from counted
where cnt>=3
I'm assuming that both the id and date columns are sequential and correspond to each other (there will need to be additional ROW_NUMBER() if the ids are not sequential with the dates, and more complex logic included if the dates are not necessarily sequential).
SELECT
*
FROM
(
SELECT
*
,COUNT(date) OVER (PARTITION BY sequential_group_num) AS num_days_in_sequence
FROM
(
SELECT
*
,(id - ROW_NUMBER() OVER (ORDER BY date)) AS sequential_group_num
FROM
stadium
WHERE
people >= 100
) AS subquery1
) AS subquery2
WHERE
num_days_in_sequence >= 3
That produces the following output:
id date people sequential_group_num num_days_in_sequence
----------- ---------- ----------- -------------------- --------------------
5 2017-01-05 145 2 4
6 2017-01-06 1455 2 4
7 2017-01-07 199 2 4
8 2017-01-08 188 2 4
By using joins we can display the consecutive rows like this
SELECT id, date1, people FROM stadium a WHERE people >= 100
AND (SELECT people FROM stadium b WHERE b.id = a.id + 1) >= 100
AND (SELECT people FROM stadium c WHERE c.id = a.id + 2) >= 100
OR people >= 100
AND (SELECT people FROM stadium e WHERE e.id = a.id - 1) >= 100
AND (SELECT people FROM stadium f WHERE f.id = a.id + 1) >= 100
OR people >= 100
AND (SELECT people FROM stadium g WHERE g.id = a.id - 1) >= 100
AND (SELECT people FROM stadium h WHERE h.id = a.id - 2) >= 100
order by id;
select distinct
t1.*
from
stadium t1
join
stadium t2
join
stadium t3
where
t1.people >= 100
and t2.people >= 100
and t3.people >= 100
and
(
(t1.id + 1 = t2.id
and t2.id + 1 = t3.id)
or
(
t2.id + 1 = t1.id
and t1.id + 1 = t3.id
)
or
(
t2.id + 1 = t3.id
and t3.id + 1 = t1.id
)
)
order by
id;
SQL script:
SELECT DISTINCT SS.*
FROM STADIUM SS
INNER JOIN
(SELECT S1.ID
FROM STADIUM S1
WHERE 3 = (
SELECT COUNT(1)
FROM STADIUM S2
WHERE (S2.ID=S1.ID OR S2.ID=S1.ID+1 OR S2.ID=S1.ID+2)
AND S2.PEOPLE >= 100
)) AS SS2
ON SS.ID>=SS2.ID AND SS.ID<SS2.ID+3
select *
from(
select * , count(*) over (partition by grp) as total
from
(select * , Sum(case when people < 100 then 1 else 0 end) over (order by date) as grp
from stadium) T -- inner Query 1
where people >=100 )S--inner query 2
where total >=3 --outer query
I wrote the following solution for this similar leetcode problem:
with groupVisitsOver100 as (
select *,
sum(
case
when people < 100 then 1
else 0
end
) over (order by date1) as visitGroups
from stadium
),
filterUnder100 as (
select
*
from groupVisitsOver100
where people >= 100
),
countGroupsSize as (
select
*,
count(*) over (partition by visitGroups) as groupsSize
from filterUnder100
)
select id, date1, people from countGroupsSize where groupsSize >= 3 order by date1
SELECT id FROM Table2 t2
INNER JOIN Table1 t1
on t1.ordno = t2.ordno
and t1.testcode = t2.testcode
WHERE RN1 > 0
AND RN2 > 0
AND RN3 > 0
AND RN3 > 0
AND RN4 > 0
AND RN5 > 0
AND RN6 > 0
I only want to return the id from Table2 if a value from Table1 is >0 (column name from Table1 exists in Table2.RNVALUE). So in this case, I only want the first two rows of table2 to pop-up because they have a value in table1 which is greater then 0. Can anyone help me with a query to do this?
Table1:
+--------------------------------------------------------+
| ORDNO | TESTCODE | RN1 | RN2 | RN3 | RN4 | RN5 | RN6 |
+--------------------------------------------------------+
| 123 | 456 | 55 | 56 | 0 | 0 | null | null |
+--------------------------------------------------------+
Table2:
+----------------------------------+
| ORDNO | TESTCODE | RN_VALUE | ID |
+----------------------------------+
| 123 456 RN1 1 |
| 123 456 RN2 2 |
| 123 456 RN3 3 |
| 123 456 RN4 4 |
+----------------------------------+
I believe you want something like this:
SELECT t2.*
FROM Table2 t2 INNER JOIN
Table1 t1
ON t1.ordno = t2.ordno AND t1.testcode = t2.testcode
WHERE (RN1 > 0 AND t2.RN_VALUE = 'RN1') OR
(RN2 > 0 AND t2.RN_VALUE = 'RN2') OR
(RN3 > 0 AND t2.RN_VALUE = 'RN3') OR
(RN4 > 0 AND t2.RN_VALUE = 'RN4') OR
(RN5 > 0 AND t2.RN_VALUE = 'RN5') OR
(RN6 > 0 AND t2.RN_VALUE = 'RN6');
Having multiple columns with names like that suggests a poor data model. Perhaps these should be in separate rows, with one value per row.
select t2.*
from table2 t2
inner join (select ordno, testcode, 1 as rn, rn1 as val
union
select ordno, testcode, 2 as rn, rn2 as val
union
select ordno, testcode, 3 as rn, rn3 as val
union
select ordno, testcode, 4 as rn, rn4 as val
union
select ordno, testcode, 5 as rn, rn5 as val
union
select ordno, testcode, 6 as rn, rn6 as val
) t1
on t2.rn_value=t1.rn
and t2.ordno=t1.ordno
and t2.testcode=t1.testcode
where t1.val>0
Hey i'm kinda stuck with this query. Using SQL-server
i have in the table, UNIQUE(date, medId, userId)
I have this table
date | medId | userId | Quantity
2016-06-10 | 2 | 1 | 28
2016-06-07 | 1 | 1 | 19
2016-06-06 | 1 | 1 | 10
i want to get the row with the max date, per group of medId,userId, in this case
i would get
2016-06-10 | 2 | 1 | 28
2016-06-07 | 1 | 1 | 19
thanks in advance!
i've tried this
SELECT
a.userMedStockDate,
a.userMedStockMedId,
a.userMedStockUserId,
a.userMedStockQuantity
FROM (SELECT
MAX(userMedStockDate) AS userMedStockDate,
userMedStockQuantity,
userMedStockUserId,
userMedStockMedId,
ROW_NUMBER() OVER (partition by userMedStockMedId,userMedStockUserId
ORDER BY MAX(userMedStockDate) desc) AS rnk
FROM UserMedStock
GROUP BY
userMedStockUserId,
userMedStockQuantity,
userMedStockMedId) a
WHERE a.rnk = 1
[SOLVED]
this should work
select * from
(
select
[date] , medId, userId ,Quantity
,row_number() over (partition by medId, userId order by [date] desc) as rowid
from yourtable
) as x
where rowid = 1
Could also try this:
select y.* from
table1 y inner join
(
SELECT [Date] = MAX([Date]), medId, userId
FROM table1
GROUP BY medId, userId
) x on y.[Date] = x.[Date] and y.medId = x.medId and y.userId = x.userId
i changed the fields to my actual table but here
SELECT
a.userMedStockDate, a.userMedStockMedId, a.userMedStockUserId, a.userMedStockQuantity
FROM(
SELECT
MAX(userMedStockDate) AS userMedStockDate,
userMedStockQuantity,
userMedStockUserId,
userMedStockMedId,
ROW_NUMBER()OVER(partition by userMedStockMedId, userMedStockUserId ORDER BY MAX(userMedStockDate) desc) AS rnk
FROM UserMedStock
GROUP BY userMedStockUserId, userMedStockQuantity, userMedStockMedId
) a
WHERE a.rnk = 1