I have following dataset
and want to get this
How can I do it?
Using SQL Server, you can use a PIVOT, such as :
SELECT Time, [a],[b],[c]
FROM
(
SELECT time, [group],value
FROM dataset) d
PIVOT
(
SUM(value)
FOR [group] IN ([a],[b],[c])
) AS pvt
You can try it on the following fiddle.
Changed the column names to not conflict with reserved words. You would have to put them into single quotes otherwise.
WITH
-- the input
indata(grp,tm,val) AS (
SELECT 'a',1,44
UNION ALL SELECT 'a',2,22
UNION ALL SELECT 'a',3, 1
UNION ALL SELECT 'b',1, 1
UNION ALL SELECT 'b',2, 5
UNION ALL SELECT 'b',3, 6
UNION ALL SELECT 'c',1, 7
UNION ALL SELECT 'c',2, 8
UNION ALL SELECT 'c',3, 9
)
SELECT tm
, SUM(CASE grp WHEN 'a' THEN val END) AS a
, SUM(CASE grp WHEN 'b' THEN val END) AS b
, SUM(CASE grp WHEN 'c' THEN val END) AS c
FROM indata
GROUP BY tm
;
tm | a | b | c
----+----+---+---
1 | 44 | 1 | 7
2 | 22 | 5 | 8
3 | 1 | 6 | 9
select * from
(
select
time,[group],value
from yourTable
group by time,[group],value
)
as table
pivot
(
sum([value])
for [group] in ([a],[b],[c])
) as p
order by time
This is the result
for Vertica,
SELECT time
, SUM(value) FILTER (WHERE group = a) a
, SUM(value) FILTER (WHERE group = b) b
, SUM(value) FILTER (WHERE group = c) c
FROM yourTable
GROUP BY time
Related
I have a row of data like this
id first_cd sec_cd third_cd fourth_cd fifth_cd sixth_cd
1 A B null C C D
output should be :
id first_cd sec_cd third_cd fourth_cd fifth_cd sixth_cd
1 A B C D D D
I need to get distinct values from the columns and remove nulls where there are.
if, first_cd...sixth_cd are columns on the same row.
1 A B null C C D are the values
Anyway to do in this in oracle sql
This is a good place to use lateral joins:
select t.*, x.*
from t cross join lateral
(select max(case when seqnum = 1 then cd end) as cd1,
max(case when seqnum = 2 then cd end) as cd2,
max(case when seqnum = 3 then cd end) as cd3,
max(case when seqnum = 4 then cd end) as cd4,
max(case when seqnum = 5 then cd end) as cd5,
max(case when seqnum = 6 then cd end) as cd6
from (select t.*, row_number() over (order by n) as seqnum
from (select t.cd1 as cd, 1 as n from dual union all
select t.cd2, 2 from dual union all
select t.cd3, 3 from dual union all
select t.cd4, 4 from dual union all
select t.cd5, 5 from dual union all
select t.cd6, 6 from dual
) x
where cd is not null
) x
) x;
Note: This returns the excess values as NULL, which seems more in line with your problem.
Below is the sample data
If I pass lot name as a parameter, I want to return employees who has greater than 0 records in The specific Lot . Not just the one record but all the records of that employee.
Table A
Empid lotname itemcount
1 A 1
1 B 1
2 B 0
3 B 1
3 C 0
Parameter - B
Result :
Empid lotname itemcount
1 A 1
1 B 1
3 B 1
3 C 0
Because employee 3 and 1 has count in B lot. All the employee lot details should be returned.
select data.* from A data,
(select Empid,count(lotname)
from A
group by Empid
having count(lotname)>1) MulLotEmp
where data.lotname='B'
and data.Empid=MulLotEmp.Empid;
Check if this query solves your problem. In this I created a inner table first for your first requirement that emp with multiple lot, then I mapped this table with actual table with condition of input lot name.
If I understand correctly, you want all "1" and then only "0" if there is no "1".
One method is:
select a.*
from a
where itemcount = 1 or
not exists (select 1 from a a2 where a2.empid = a.empid and a2.itemcount = 1);
In Oracle, you can use the MAX analytic function:
SELECT Empid,
lotname,
itemcount
FROM (
SELECT t.*,
MAX( itemcount ) OVER ( PARTITION BY Empid ) AS max_itemcount
FROM table_name t
)
WHERE max_itemcount = 1;
So, for you sample data:
CREATE TABLE table_name ( Empid, lotname, itemcount ) AS
SELECT 1, 'A', 1 FROM DUAL UNION ALL
SELECT 1, 'B', 1 FROM DUAL UNION ALL
SELECT 2, 'B', 0 FROM DUAL UNION ALL
SELECT 3, 'B', 1 FROM DUAL UNION ALL
SELECT 3, 'C', 0 FROM DUAL;
This outputs:
EMPID | LOTNAME | ITEMCOUNT
----: | :------ | --------:
1 | A | 1
1 | B | 1
3 | B | 1
3 | C | 0
db<>fiddle here
The analytic function
sum(case when LOTNAME = 'B' /* parameter */ then ITEMCOUNT end) over (partition by EMPID) as lot_itemcnt
calculates for each customer the total number of items with the selected lot.
Feel free to use it as a bind variable, e.g.
sum(case when LOTNAME = ? /* parameter */ then ITEMCOUNT end) over (partition by EMPID) as lot_itemcnt
The whole query is than as follows
with cust as (
select
EMPID, LOTNAME, ITEMCOUNT,
sum(case when LOTNAME = 'B' /* parameter */ then ITEMCOUNT end) over (partition by EMPID) as lot_itemcnt
from tab)
select
EMPID, LOTNAME, ITEMCOUNT
from cust
where lot_itemcnt >= 1;
I have the table structure below,
I need to merge the CouponNumber to two equal as CouponNumber1 and CouponNumber2 as shown in the figure
SELECT Name, MobileNumber, CouponNumber, IsDispatched, Status
FROM CouponInvoicePrescription
This is my query.
Try this:
WITH
input(ord,name,mobno,couponno,isdispatched,status) AS (
SELECT 0,'amar',8888888888,'CPever901',FALSE,1
UNION ALL SELECT 1,'amar',8888888888,'CP00005' ,FALSE,1
UNION ALL SELECT 2,'pt3' ,7777777777,'cp9090' ,FALSE,1
UNION ALL SELECT 3,'pt3' ,7777777777,'ev2' ,FALSE,1
UNION ALL SELECT 4,'pt3' ,7777777777,'cp9909' ,FALSE,1
UNION ALL SELECT 5,'pt3' ,7777777777,'cp10' ,FALSE,1
)
SELECT
name
, MAX(CASE ord % 2 WHEN 1 THEN couponno END) AS couponno1
, MAX(CASE ord % 2 WHEN 0 THEN couponno END) AS couponno2
, isdispatched
, status
FROM input
GROUP BY
ord / 2
, name
, isdispatched
, status
ORDER BY 1
-- out name | couponno1 | couponno2 | isdispatched | status
-- out ------+-----------+-----------+--------------+--------
-- out amar | CP00005 | CPever901 | f | 1
-- out pt3 | cp10 | cp9909 | f | 1
-- out pt3 | ev2 | cp9090 | f | 1
Try this:
SELECT * FROM
(
SELECT
sub.rn,
sub.Name,
sub.MobileNumber,
sub.CouponNumber as CouponNumber1,
LEAD(sub.CouponNumber,1) OVER (PARTITION BY sub.MobileNumber ORDER BY sub.rn) as CouponNumber2,
sub.IsDispatched,
sub.Status
FROM
(
SELECT
ROW_NUMBER() OVER (PARTITION by MobileNumber ORDER BY Name) as rn,
*
FROM
input
) sub
)
WHERE rn % 2 <> 0
I want to find in my table, max value which is less than specified in parameter and get count of rows that have the same value as max value. For example in my table I have values: (4,1,3,1,4,4,10), and it is list of parameters in string "2,9,10,4". I have to split string to separate parameters. Base on this sample values I want to get something like that:
param | max value | count
2 | 1 | 2
9 | 4 | 3
10 | 4 | 3
4 | 3 | 1
And it is my sample query:
select
[param]
, max([val]) [max_value_by_param]
, max(count) [count]
from(
select
n.value as [param]
,a.val
, count(*) as [count]
from (--mock of table
select 1 as val union all
select 3 as val union all
select 4 as val union all
select 1 as val union all
select 3 as val union all
select 4 as val union all
select 4 as val union all
select 10 as val
) a
join (select [value] from string_split('2,9,10,4', ',')) n--list of params
on a.val < n.[value]
group by n.value, a.val
) tmp
group by [param]
Is it possible to do it better/easier ?
Here is a way to express this using apply:
select s.value as param, a.val, a.cnt
from string_split('2,9,10,4', ',') s outer apply
(select top (1) a.val, count(*) as cnt
from a
group by a.val
having a.val < s.value
order by a.val desc
) a;
Here is a db<>fiddle.
But the fastest method is probably going to be:
with av as (
select a.val, count(*) as cnt
from a
group by a.val
union all
select s.value, null as cnt
from string_split('2,9,10,4', ',') s
)
select val, a_val, a_cnt
from (select av.*,
max(case when cnt is not null then val end) over (order by val, (case when cnt is null then 1 else 2 end)) as a_val,
max(case when cnt is not null then cnt end) over (order by val, (case when cnt is null then 1 else 2 end)) as a_cnt
from av
) av
where cnt is null;
This only aggregates the data once and should return all parameters, even those with no preceding values in a.
Select sum(num) as num, sum(numbr) as numbr
from
(
(Select 0 as num)
union all
(Select 1 as num)
) t,
(
(Select 2 as numbr)
union all
(Select 3 as numbr)
) t1
giving result:
num numbr
2 10
But the correct result should be
num numbr
1 5
You are doing the cross product of a table containing 0 and 1, and a table containing 2 and 3. Try removing the sums:
Select num, numbr as numbr from
(
(Select 0 as num)
union all
(Select 1 as num))t,
((Select 2 as numbr)
union all
(Select 3 as numbr)
)t1
This gives you:
0;2
0;3
1;2
1;3
Which will correctly sum to 2 and 10.
That happens because you are CROSS JOINING , every record connect to every record with out a relation condition, which means that in this case, your join becomes this:
NUM | NUMBR
0 2
0 3
1 2
1 3
Which SUM(NUM) = 2 and SUM(NUMBR) = 10 .
When joining, you have to specify the relation condition unless this is what you want.
Note: You are using implicit join syntax(comma separated) , you should avoid that and use the explicit syntax and this will help you make sure you are using a relation condition (by the ON clause):
Select sum(num) as num, sum(numbr) as numbr
from
(
(Select 0 as num)
union all
(Select 1 as num)
) t
INNER JOIN
(
(Select 2 as numbr)
union all
(Select 3 as numbr)
) t1
ON(t.<Col> = t1.<Col1>)
Select num, numbr as numbr
from
(
(Select 0 as num)
union all
(Select 1 as num)
) t,
(
(Select 2 as numbr)
union all
(Select 3 as numbr)
) t1
Gives you the cartessian product of tables.
| Num | Number |
|-----|--------|
| 0 | 2 |
| 0 | 3 |
| 1 | 2 |
| 1 | 3 |
Therefore the sum of these are 2 and 10
Its correctly working as you wrote. If you want the result as you expected, try this:
Select sum(distinct num) as num, sum(distinct numbr) as numbr
from
(
(Select 0 as num)
union all
(Select 1 as num)
) t,
(
(Select 2 as numbr)
union all
(Select 3 as numbr)
) t1