I'm brand-spakin' new to SQL and was asked to help write a query for a report. I need to limit the data to the last 10 services done by a clinician, and then subtotal the difference between the two times (time in and out) for each clinician.
I'm guessing I need to do a "LIMIT" clause to limit the data, but I'm not sure how or where to put that information. I am also thinking I need to use "GROUP BY", but not positive on that either. Any help would be appreciated.
I tried simplifying the existing query that my boss started but I'm getting error messages about the GROUP BY clause because I don't have an aggregate.
Select CV.emp_name,
CV.Visittype,
CVt.clientvisit_id,
CV.client_id,
CV.rev_timein,
CV.rev_timeout,
Convert(varchar(25),Cast(CV.rev_timein As Time),8) As Start_Time,
CV.program_id,
CV.cptcode
From ClientVisit CV
Where CV.visittype = 'Mobile Therapy' And CV.program_id = 31
And CV.cptcode <> 'NB' And CV.rev_timein <=
Convert(datetime,IsNull(#param2, GetDate())) And CV.rev_timein >=
Convert(datetime,IsNull(#param1, GetDate())) And
Cast(CV.rev_timein As time) > '15:59'
Group By CV.emp_name,
CV.rev_timein
Related
I have an issue with a report I am trying to make in SAP. The problem is that I want to only show each SR NUM only once. But there are many appearances in my report. I saw that each number has multiple activities and comments and that is why there are appearing more than once. The thing is that I only need the last appearance based on date for each SR Num and there is no filter that can help me with this. I also tried Ranking but I do not have a metric and created a new variable finding max date for each sr num. That also did not work as there are multi values.
Please help!
For example i have 3 columns sr num, date and comments. The first has 3 different nums but multiple times and the dates are all different as the comments.I need to only keep each sr num once with the most recent date and comment
I created some sample data in a free-hand SQL query which yields this...
You will need to find the maximum date for each SR Num and then only show that row for each SR Num. I used two variables to achieve this.
Var Max Activity Date...
=Max([Activity Date]) In ([SR Num])
Var Is Max Activity Date...
=If([Activity Date] = [Var Max Activity Date]; 1; 0)
Finally add a table filter to only show the rows where the Activity Date is the Max Activity Date for each SR Num.
You do not need the variables in your table in the end. I just put them there in order to visualize what is going on. That's it.
Noel
elasticsearch = 7.16.1
using this in python, this elasticsearch sql query seems to work to get the data I want within the time range:
es.sql.query(body={'query':"select * from \"index-*\" where \"#timestamp\" >= CAST('2022-06-30T08:00:00.000Z'AS DATETIME) and \"#timestamp\" <= CAST('2022-07-10T08:00:00.000Z'AS DATETIME) order by \"#timestamp\" desc "})
But it's returning all rows within that time.
I want to be able to get bucket by minutes, hours, or day. So it returns less rows basically but I can still get the right totals
Couldn't find where to do that here:
https://www.elastic.co/guide/en/elasticsearch/reference/current/sql-functions-datetime.html
I have a list of products and would like to get a 50 day simple moving average of its volume using Power Query (M).
The table is sorted by product name and date. I add a custom column and applied the code below.
if [date] >= #date(2018,1,29)
then List.Average(List.Range(Source[Volume],[Volume]-1,-50))
else ""
Since it is already sorted by date and name, an if statement was applied with a date as criteria/filter. However, an error occurs that says
'Volume' column not found in the table.
I expect to have an added column in the power query with volume 50 day moving average per product. the calculation to be done if date is greater than or equal Jan 29, 2018.
We don't know what your columns are, but assuming you have [product], [date] and [volume] in Source, this would average the last 50 days of [volume] for the identical [product] based on each [date], and place in a new column
AvgAmountAdded = Table.AddColumn(Source, "AverageAmount", (i) => List.Average(Table.SelectRows(Source, each ([product] = i[product] and [date]<=i[date] and [date]>=Date.AddDays(i[date],-50)))[volume]), type number)
Finally! found a solution.
First, apply Index by product see this post for further details
Then index again without criteria (index all rows)
Then, apply below code
= Table.AddColumn(#"Previous Step", "Volume SMA(50)", each if [Index_byProduct] >= 50 then List.Average(List.Range(#"Previous Step"[Volume], ([Index_All]-50),50)) else 0),
For large dataset, Table.Buffer function is recommended after index-expand step to improve PQ calculation speed
I'm attempting to make a linq where contains query quicker.
The data set contains 256,999 clients. The Ids is just a simple list of GUID'S and this would could only contain 3 records.
The below query can take up to a min to return the 3 records. This is because the logic will go through the 256,999 record to see if any of the 256,999 records are within the List of 3 records.
returnItems = context.ExecuteQuery<DataClass.SelectClientsGridView>(sql).Where(x => ids.Contains(x.ClientId)).ToList();
I would like to and get the query to check if the three records are within the pot of 256,999. So in a way this should be much quicker.
I don't want to do a loop as the 3 records could be far more (thousands). The more loops the more hits to the db.
I don't want to grap all the db records (256,999) and then do the query as it would take nearly the same amount of time.
If I grap just the Ids for all the 256,999 from the DB it would take a second. This is where the Ids come from. (A filtered, small and simple list)
Any Ideas?
Thanks
You've said "I don't want to grab all the db records (256,999) and then do the query as it would take nearly the same amount of time," but also "If I grab just the Ids for all the 256,999 from the DB it would take a second." So does this really take "just as long"?
returnItems = context.ExecuteQuery<DataClass.SelectClientsGridView>(sql).Select(x => x.ClientId).ToList().Where(x => ids.Contains(x)).ToList();
Unfortunately, even if this is fast, it's not an answer, as you'll still need effectively the original query to actually extract the full records for the Ids matched :-(
So, adding an index is likely your best option.
The reason the Id query is quicker is due to one field being returned and its only a single table query.
The main query contains sub queries (below). So I get the Ids from a quick and easy query, then use the Ids to get the more details information.
SELECT Clients.Id as ClientId, Clients.ClientRef as ClientRef, Clients.Title + ' ' + Clients.Forename + ' ' + Clients.Surname as FullName,
[Address1] ,[Address2],[Address3],[Town],[County],[Postcode],
Clients.Consent AS Consent,
CONVERT(nvarchar(10), Clients.Dob, 103) as FormatedDOB,
CASE WHEN Clients.IsMale = 1 THEN 'Male' WHEN Clients.IsMale = 0 THEN 'Female' END As Gender,
Convert(nvarchar(10), Max(Assessments.TestDate),103) as LastVisit, ";
CASE WHEN Max(Convert(integer,Assessments.Submitted)) = 1 Then 'true' ELSE 'false' END AS Submitted,
CASE WHEN Max(Convert(integer,Assessments.GPSubmit)) = 1 Then 'true' ELSE 'false' END AS GPSubmit,
CASE WHEN Max(Convert(integer,Assessments.QualForPay)) = 1 Then 'true' ELSE 'false' END AS QualForPay,
Clients.UserIds AS LinkedUsers
FROM Clients
Left JOIN Assessments ON Clients.Id = Assessments.ClientId
Left JOIN Layouts ON Layouts.Id = Assessments.LayoutId
GROUP BY Clients.Id, Clients.ClientRef, Clients.Title, Clients.Forename, Clients.Surname, [Address1] ,[Address2],[Address3],[Town],[County],[Postcode],Clients.Consent, Clients.Dob, Clients.IsMale,Clients.UserIds";//,Layouts.LayoutName, Layouts.SubmissionProcess
ORDER BY ClientRef
I was hoping there was an easier way to do the Contain element. As the pool of Ids would be smaller than the main pool.
A way I've speeded it up for now is. I've done a Stinrg.Join to the list of Ids and added them as a WHERE within the main SQL. This has reduced the time down to a seconds or so now.
I'm trying to build a query that shows only non-unique duplicates. I've already built a query that shows all the records coming into consideration:
SELECT tbl_tm.title, lp_index.starttime, musicsound.archnr
FROM tbl_tm
INNER JOIN musicsound on tbl_tm.fk_tbl_tm_musicsound = musicsound.pk_musicsound
INNER JOIN lp_index ON musicsound.pk_musicsound = lp_index.fk_index_musicsound
INNER JOIN plan ON lp_index.fk_index_plan = plan.pk_plan
WHERE tbl_tm.FK_tbl_tm_title_type_music = '22' AND plan.airdate
BETWEEN to_date ('15-01-13') AND to_date('17-01-13')
GROUP BY tbl_tm.title, lp_index.starttime, musicsound.archnr
HAVING COUNT (tbl_tm.title) > 0;
The corresponding result set looks like this:
title starttime archnrr
============================================
Pumped up kicks 05:05:37 0616866
People Help The People 05:09:13 0620176
I can't dance 05:12:43 0600109
Locked Out Of Heaven 05:36:08 0620101
China in your hand 05:41:33 0600053
Locked Out Of Heaven 08:52:50 0620101
It gives me music titles played between a certain timespan along with their starting time and archive ID.
What I want to achieve is something like this:
title starttime archnr
============================================
Locked Out Of Heaven 05:36:08 0620101
Locked Out Of Heaven 08:52:50 0620101
There would only be two columns left: both share the same title and archive number but differ in the time part. Increasing the 'HAVING COUNT' value will give me a zero-row
result set, since there aren't any entries that are exactly the same.
What I've found out so far is that the solution for this problem will most likely have a nested subquery, but I can't seem to get it done. Any help on this would be greatly appreciated.
Note: I'm on a Oracle 11g-server. My user has read-only privileges. I use SQL Developer on my workstation.
You can try something like this:
SELECT title, starttime, archnr
FROM (
SELECT title, starttime, archnr, count(*) over (partition by title) cnt
FROM (your_query))
WHERE cnt > 1
Here is a sqlfiddle demo