I'd like to count total events, which can have two different values, and I could not figure out how to merge them together. My query is the following:
SELECT TOP(20)
[MatchEvents].[PlayerID], [MatchEvents].[EventType],
COUNT([MatchEvents].[ID]) AS [TOTAL]
FROM
[MatchEvents]
INNER JOIN
[Match] ON [MatchEvents].[MatchID] = [Match].[ID]
AND [Match].[Season] = 1
WHERE
([MatchEvents].[EventType] = 0 OR [MatchEvents].[EventType] = 1)
GROUP BY
[MatchEvents].[PlayerID], [MatchEvents].[EventType]
ORDER BY
[TOTAL] ESC
Current output:
PlayerID
EventType
Total
1
0
8
1
1
3
2
0
8
2
1
3
3
0
8
3
1
3
Expected output:
PlayerID
Total
1
11
2
11
3
11
How could I merge my current results further?
Thanks!
From your expected results it appears you just need to remove grouping by EventType
I would suggest the following:
select top(20) me.PlayerID, Count(*) as Total
from MatchEvents me
join [Match] m on m.Id = me.MatchId and m.Season = 1
where me.EventType in (0, 1)
group by me.PlayerID
order by Total desc;
Related
I have a database table of 3 columns
RecordID Deleted CardHolderID
1963 1 9
4601 1 9
6996 0 9
1532 1 11
1529 0 20
I want an sql query to output the sum of rows of Deleted column grouped by CardHolderID.
However query below outputs 2 columns for CardHolderID
select c.CardHolderID, c.Deleted, COUNT(*) as Sum
from Card c
group by c.Deleted, c.CardHolderID
CardHolderID Deleted Sum
9 0 1
9 1 2
20 0 1
11 1 1
I want to include 2 columns as Deleted0 (count of rows with Deleted column equal to 0) and Deleted1 (count of rows with Deleted column equal to 1)
CardHolderID Deleted0 Deleted1
9 1 2
20 1 0
11 1 1
How should be the SQL query for such a result?
Kind regards
Using conditional count:
select c.CardHolderID,
count( case when c.deleted > 0 then 1 else null end ) deleted0,
count( case when c.deleted = 0 then 1 else null end ) deleted1,
from Card c
group by c.CardHolderID
GROUP BY CardHolderID alone.
Use SUM(Deleted) to count the 1's.
Use SUM(1-deleted) to count the 0's.
select c.CardHolderID, sum(1-c.deleted) deleted0, sum(c.Deleted) deleted1
from Card c
group by c.CardHolderID
if you are using MSSQL
select DtlPivot.CardHolderID, isnull(DtlPivot.[0],0) as Deleted0, isnull(DtlPivot.[1],0) as Deleted1 from
(
select c.CardHolderID, c.Deleted, COUNT(*) as Total from Card c
group by c.Deleted, c.CardHolderID
) aa
PIVOT
(
sum(Total) FOR Deleted IN([0],[1])
)AS DtlPivot
I have two tables:
Report
ReportId CreatedDate
1 2018-01-12
2 2018-02-12
3 2018-03-12
ReportSpecialty
SpecialtyId ReportId IsPrimarySpecialty
1 1 1
2 2 1
3 3 1
1 2 0
1 3 0
I am trying to write a query that will retrieve me the last 10 reports that were published. However, I need to get 1 report from each specialty. Assume there are 100 specialties, I can pass in as an argument any number of specialties, 10, 20, 5, 2, etc...
I'm trying to figure out a way where if I send it all specialties, it will get me the last 10 reports posted based on the last date created, but it won't give me 2 articles from same specialty. If I send it 10 specialties, then I will get 1 of each. If I send it 5, then I'll get 2 of each. If I send it 3 then I'll get 4 of 1 and 3 of other two.
I may need to write multiple queries for this, I'm trying to see if there is a way to do this on the SQL side of things? If there isn't, then how would I break down to multiple queries to get the result I want?
What I have tried is this, however I get multiple reports with same specialties:
SELECT TOP 10 r.ReportId, rs.SpecialtyId, r.CreatedDate
FROM Report r
INNER JOIN ReportSpecialty rs ON r.ReportId = rs.ReportId AND rs.IsPrimarySpecialty = 1
GROUP BY rs.SpecialtyId, r.AceReportid, r.CreatedDate
ORDER BY r.CreatedDate DESC
with cte as (
SELECT R.ReportId, R.CreatedDate, RS.SpecialtyId,
ROW_NUMBER() OVER (PARTITION BY RS.SpecialtyId
ORDER BY R.CreatedDate DESC) as rn
FROM Report R
JOIN ReportSpecialty RS
ON R.ReportId = RS.ReportId
AND RS.IsPrimarySpecialty = 1
WHERE RS.SpecialtyId IN ( .... ids ... )
)
SELECT TOP 10 *
FROM cte
ORDER BY rn, CreatedDate DESC
row_number will create a id for each speciality, so if you pass 3 speciality you will get something like this.
rn speciality_id
1 1
1 2
1 3
2 1
2 2
2 3
3 1
3 2
3 3
I'm having a bit of issue trying to sum two column together with a left join - running in to grouping problems.
An example of the issue is below:
Table One: [Order]
ID CustomerID
1 512
2 317
3 562
Table Two: [OrderEntry]
OrderID Type ID QuantitySold QuantityReturned
1 A 1 1 0
1 A 2 3 0
1 A 3 1 1
2 A 4 1 1
3 B 5 2 0
What I'm trying to display:
CustomerID ID Sold - Returned
512 1 1
512 1 3
512 1 0
317 2 0
Where [OrderEntry].Type = 'A'
This is very basic SQL:
SELECT
ord.CustomerID
, ord.ID
, orden.QuantitySold - orden.QuantityReturned AS [Sold - Returned]
FROM Order ord
LEFT JOIN OrderEntry orden
ON ord.ID = orden.ID
WHERE orden.Type = 'A'
Here you can use any join as you are using and use concat function on two of your column like this
select concat(OrderEntry.QuantitySold, OrderEntry.QuantityReturned) AS newcolumn_name
I have 2 tables named user and statistics
user table has 3 columns: id, name and category
statistics table has 3 columns: id, idUser (relational), cal
something like this:
user
Id name category
1 name1 1
2 name2 2
3 name3 3
statistics
Id idUser cal
1 1 1
2 1 1
3 1 1
4 2 1
5 2 1
How can I apply a query that sum the cal column by each category of users and give me something like this:
category totalcal
1 3
2 2
3 0
You want to do a left join to keep all the categories. The rest is just aggregation:
select u.category, coalesce(sum(s.cal), 0) as cal
from users u left join
statistics s
on u.id = s.idUser
group by u.category;
Use LEFT JOIN to get 0 sum for the category=3:
SELECT
user.category
,SUM(statistics.cal) AS totalcal
FROM
user
LEFT JOIN statistics ON statistics.idUser = user.Id
GROUP BY
user.category
Here SUM would return NULL for category=3. To get 0 instead of NULL you can use COALESCE(SUM(statistics.cal), 0).
I m working on weird SQL query
Patient_ID Count order_no
1 1 1
2 1 2
2 0 3
2 0 4
3 1 5
3 0 6
where I need to count the patient as above, for every new patient , the count column is 1.
If repeated , the below entry it should be 0
I m confused how should make that work in SQL
In order to make the first entry 1 and all subsuqent entries 0, I believe you need a ranking with partition by the order number. Please checkout the sqlfiddle below to test results.
http://www.sqlfiddle.com/#!3/4e2e2/17/0
SELECT
patient_id
,CASE WHEN r.rank = 1
THEN 1
ELSE 0
END
, order_number
FROM
(
SELECT
order_number
,patient_id
,ROW_NUMBER() OVER (PARTITION BY patient_id ORDER BY order_number)[rank]
FROM
PatientTable
)r