I have three tables Books, Debit and Client.
Books (Id, Title, ...)
Debit (BooksID, ClientId, BorrowingDate,....)
Client (Id, Name, ...)
I need SQL query that will return
a book that is most times rented out, between two dates.
Dates will be passed as parameters to query.
How about this?
SELECT * FROM Books INNER JOIN Debit ON Books.Id = Debit.BooksID WHERE BorrowingDate >= #StartDate AND BorrowingDate <= #EndDate
If you edit in an example of what you would like the output to look like I can redefine the above query to help you get what you want.
And for the record, Adrian is right; it is generally better to make an attempt yourself and come to us with a problem, rather than asking SO to solve the problem for you. But hopefully what I have here will get you started. Welcome to SO! :)
Edit
It also just occurred to me that you might be looking for the book which was rented out most number of times between your two dates... If so, try this:
SELECT TOP 1 Books.* FROM (
SELECT COUNT(*) AS DebitCount, BooksID FROM Debit WHERE BorrowingDate >= #StartDate AND BorrowingDate <= #EndDate GROUP BY BooksID
) Debits INNER JOIN Books ON Books.ID = Debits.BooksID
ORDER BY DebitCount DESC
Hope that helps!
The query...
SELECT TOP 1 *
FROM (
SELECT BooksID, COUNT(*) AS C
FROM Debit
WHERE BorrowingDate BETWEEN #min_date and #max_date
GROUP BY BooksID
)
ORDER BY C DESC
...will yield one row containing the BooksID and number of rents of the book that has been rented most times between #min_date and #max_date.
You can later easily JOIN with Books if you need more than just BooksID.
Related
I want to look if there are more than one QuestionCategory in one day in the table contentment. In my case people don't need to answer in one day questions with different categories. I can make a trigger of this.
The contentmenttable: employeeid, questionid, date, score
The questiontable: questionid, questioncat, question
Data contentmenttable: 1, 1, 11-18-2018, 4
Data questiontable: 1, Work, How is your job? 2, Work, Are you happy
with your job?
If have something like this:
select c.questionid, date
from contentment c
join question q
on c.questionid= q.questionid
group by c.questionid, date
having count(questioncat) >= 2
But this query is only counting IF a questionid is two times or more in this table, not if there are two different questioncategories in this table.
I use SQL Server.
So if someone wants to insert this:
insert into contentment values (1, 2, 11-18-2018', null) (null because employee needs to give a score)
The query needs to give this questionid and date (2 and 11-18-2018), because it is the same questioncat "work" on the same day 11-18-2018.
You need to add DISTINCT:
select c.questionid, date
from contentment c
join question q
on c.questionid= q.questionid
group by c.questionid, date
having count(DISTINCT questioncat) >= 2;
-- counting only different questioncat
Your question is hard to follow, but I think you want employees that have more than one question category in a given day. If so:
select c.employeeid, c.date, count(distinct q.questioncat)
from contentment c join
question q
on c.questionid = q.questionid
group by c.employeeid, c.date
having count(distinct q.questioncat) >= 2;
I have what seems to be a common business request but I can't find no clear solution. I have a daily report (amongst many) that gets generated based on failed criteria and gets saved to a table. Each report has a type id tied to it to signify which report it is, and there is an import event id that signifies the day the imports came in (a date column is added for extra clarification). I've added a sqlfiddle to see the basic schema of the table (renamed for privacy issues).
http://www.sqlfiddle.com/#!3/81945/8
All reports currently generated are working fine, so nothing needs to be modified on the table. However, for one report (type 11), not only I need pull the invoices that showed up today, I also need to add one column that totals the amount of consecutive days from date of run for that invoice (including current day). The result should look like the following, based on the schema provided:
INVOICE MESSAGE EVENT_DATE CONSECUTIVE_DAYS_ON_REPORT
12345 Yes July, 30 2013 6
54355 Yes July, 30 2013 2
644644 Yes July, 30 2013 4
I only need the latest consecutive days, not any other set that may show up. I've tried to run self joins to no avail, and my last attempt is also listed as part of the sqlfiddle file, to no avail. Any suggestions or ideas? I'm quite stuck at the moment.
FYI: I am working in SQL Server 2000! I have seen a lot of neat tricks that have come out in 2005 and 2008, but I can't access them.
Your help is greatly appreciated!
Something like this? http://www.sqlfiddle.com/#!3/81945/14
SELECT
[final].*,
[last].total_rows
FROM
tblEventInfo AS [final]
INNER JOIN
(
SELECT
[first_of_last].type_id,
[first_of_last].invoice,
MAX([all_of_last].event_date) AS event_date,
COUNT(*) AS total_rows
FROM
(
SELECT
[current].type_id,
[current].invoice,
MAX([current].event_date) AS event_date
FROM
tblEventInfo AS [current]
LEFT JOIN
tblEventInfo AS [previous]
ON [previous].type_id = [current].type_id
AND [previous].invoice = [current].invoice
AND [previous].event_date = [current].event_date-1
WHERE
[current].type_id = 11
AND [previous].type_id IS NULL
GROUP BY
[current].type_id,
[current].invoice
)
AS [first_of_last]
INNER JOIN
tblEventInfo AS [all_of_last]
ON [all_of_last].type_id = [first_of_last].type_id
AND [all_of_last].invoice = [first_of_last].invoice
AND [all_of_last].event_date >= [first_of_last].event_date
GROUP BY
[first_of_last].type_id,
[first_of_last].invoice
)
AS [last]
ON [last].type_id = [final].type_id
AND [last].invoice = [final].invoice
AND [last].event_date = [final].event_date
The inner most query looks up the starting record of the last block of consecutive records.
Then that joins on to all the records in that block of consecutive records, giving the final date and the count of rows (consecutive days).
Then that joins on to the row for the last day to get the message, etc.
Make sure that in reality you have an index on (type_id, invoice, event_date).
You have multiple problems. Tackle them separately and build up.
Problems:
1) Identifying consecutive ranges: subtract the row_number from the range column and group by the result
2) No ROW_NUMBER() functions in SQL 2000: Fake it with a correlated subquery.
3) You actually want DENSE_RANK() instead of ROW_NUMBER: Make a list of unique dates first.
Solutions:
3)
SELECT MAX(id) AS id,invoice,event_date FROM tblEventInfo GROUP BY invoice,event_date
2)
SELECT t2.invoice,t2.event_date,t2.id,
DATEDIFF(day,(SELECT COUNT(DISTINCT event_date) FROM (SELECT MAX(id) AS id,invoice,event_date FROM tblEventInfo GROUP BY invoice,event_date) t1 WHERE t2.invoice = t1.invoice AND t2.event_date > t1.event_date),t2.event_date) grp
FROM (SELECT MAX(id) AS id,invoice,event_date FROM tblEventInfo GROUP BY invoice,event_date) t2
ORDER BY invoice,grp,event_date
1)
SELECT
t3.invoice AS INVOICE,
MAX(t3.event_date) AS EVENT_DATE,
COUNT(t3.event_date) AS CONSECUTIVE_DAYS_ON_REPORT
FROM (
SELECT t2.invoice,t2.event_date,t2.id,
DATEDIFF(day,(SELECT COUNT(DISTINCT event_date) FROM (SELECT MAX(id) AS id,invoice,event_date FROM tblEventInfo GROUP BY invoice,event_date) t1 WHERE t2.invoice = t1.invoice AND t2.id > t1.id),t2.event_date) grp
FROM (SELECT MAX(id) AS id,invoice,event_date FROM tblEventInfo GROUP BY invoice,event_date) t2
) t3
GROUP BY t3.invoice,t3.grp
The rest of your question is a little ambiguous. If two ranges are of equal length, do you want both or just the most recent? Should the output MESSAGE be 'Yes' if any message = 'Yes' or only if the most recent message = 'Yes'?
This should give you enough of a breadcrumb though
I had a similar requirement not long ago getting a "Top 5" ranking with a consecutive number of periods in Top 5. The only solution I found was to do it in a cursor. The cursor has a date = #daybefore and inside the cursor if your data does not match quit the loop, otherwise set #daybefore = datediff(dd, -1, #daybefore).
Let me know if you want an example. There just seem to be a large number of enthusiasts, who hit downvote when they see the word "cursor" even if they don't have a better solution...
Here, try a scalar function like this:
CREATE FUNCTION ConsequtiveDays
(
#invoice bigint, #date datetime
)
RETURNS int
AS
BEGIN
DECLARE #ct int = 0, #Count_Date datetime, #Last_Date datetime
SELECT #Last_Date = #date
DECLARE counter CURSOR LOCAL FAST_FORWARD
FOR
SELECT event_date FROM tblEventInfo
WHERE invoice = #invoice
ORDER BY event_date DESC
FETCH NEXT FROM counter
INTO #Count_Date
WHILE ##FETCH_STATUS = 0 AND DATEDIFF(dd,#Last_Date,#Count_Date) < 2
BEGIN
#ct = #ct + 1
END
CLOSE counter
DEALLOCATE counter
RETURN #ct
END
GO
I have two tables, TblVal and TblAdj.
In TblVal I have a bunch of values that I need adjusted according to TblAdj for a given TblVal.PersonID and TblVal.Date and then returned in some ViewAdjustedValues. I must apply only those adjustments where TblAdj.Date >= TblVal.Date.
The trouble is that since all the adjustments are either a subtraction or a division, they need to be made in order. Here is the table structure:
TblVal: PersonID, Date, Value
TblAdj: PersonID, Date, SubtractAmount, DivideAmount
I want to return ViewAdjustedValues: PersonID, Date, AdjValue
Can I do this without iterating through TblAdj using a WHILE loop and an IF block to either subtract or divide as necessary? Is there some nested SELECT table magic I can perform that would be faster?
I think you can do it without a loop, but whether you want to or not is another question. A query that I think works is below (SQL Fiddle here). The key ideas are as follows:
Each SubtractAmount has the ultimate effect of subtracting SubtractAmount divided by the product of all later DivideAmounts for the same PersonID. The Date associated with the PersonID isn't relevant to this adjustment (fortunately). The CTE AdjustedAdjustments contains these adjusted SubtractAmount values.
The initial Value for a PersonID gets divided by the product of all DivideAmount values on or after that persons Date.
EXP(SUM(LOG(x))) works as an aggregate product if all values of x are positive. You should constrain your DivideAmount values to assure this, or adjust the code accordingly.
If there are no DivideAmounts, the associated product is NULL and changed to 1. Similarly, NULL sums of adjusted SubtractAmount values are changed to zero. A left join is used to preserve an values that are not subject to any adjustments.
SQL Server 2012 supports an OVER clause for aggregates, which was helpful here to aggregate "all later DivideAmounts."
WITH AdjustedAdjustments AS (
select
PersonID,
Date,
SubtractAmount/
EXP(
SUM(LOG(COALESCE(DivideAmount,1)))
OVER (
PARTITION BY PersonID
ORDER BY Date
ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
)
) AS AdjustedSubtract,
DivideAmount
FROM TblAdj
)
SELECT
p.PersonID,
p.Value/COALESCE(EXP(SUM(LOG(COALESCE(DivideAmount,1)))),1)
-COALESCE(SUM(a.AdjustedSubtract),0) AS AmountAdjusted
FROM TblVal AS p
LEFT OUTER JOIN AdjustedAdjustments AS a
ON a.PersonID = p.PersonID
AND a.Date >= p.Date
GROUP BY p.PersonID, p.Value, p.Date;
Try something like following:
with CTE_TblVal (PersonID,Date,Value)
as
(
select A.PersonID, A.Date, A.Value
from TblVal A
inner join TblAdj B
on A.PersonID = B.PersonID
where B.Date >= A.Date
)
update CTE_TblVal
set Date = TblAdj.Date,
Value = TblAdj.Value
from CTE_TblVal
inner join TblAdj
on CTE_Tblval.PersonID = TblAdj.PersonID
output inserted.* into ViewAdjustedValues
select * from ViewAdjustedValues
I have a small issue with a stored procedure in SQL Server 2005.
RepInfoID(primary), Date, RepID are the columns in RepInfo
1. 25660, 02/03/2012, 100
2. 25661, 02/03/2012, 100
3. 25662, 02/03/2012, 101
and
RepCID(primary), RepInfoID, Amount are the columns in RepCollection
1. 4343, 25660, 200(money)
2. 4344, 25661, 600
Desired results is:
100(RepID) , 02/03/2012, 800(money)
There can be more than row with the same date.
When a date is selected, foreach RepID on the selected date, I want the sum of Amount on that particular day. I hope I am clear.
Thank you for your help..
CREATE PROCEDURE [dbo].[PracticewithAmount]
(#Date datetime)
AS
BEGIN
Select *
from RepInfo
left outer join RepCollection on RepInfo.RepInfoID = RepCollection.RepInfoID
where RepInfo.Date = #Date
and distinct(RepID)
END
Your question isn't entirely clear, but here's what I think you're saying:
SELECT
--i.RepInfoID(primary),
i.Date,
i.RepID,
--c.RepCID(primary),
--c.RepInfoID,
sum(c.Amount) as Amount
FROM
RepInfo i
LEFT JOIN RepCollection c
ON i.RepInfoID = c.RepInfoID
WHERE
i.Date = #Date
GROUP BY
i.Date,
i.RepID
I'm trying to build a query for a medical database that counts the number of patients that were on at least one medication from a class of medications (the medications listed below in the FAST_MEDS CTE) and had either:
1) A diagnosis of myopathy (the list of diagnoses in the FAST_DX CTE)
2) A CPK lab value above 1000 (the lab value in the FAST_LABS CTE)
and this diagnosis or lab happened AFTER a patient was on a statin.
The query I've included below does that under the assumption that once a patient is on a statin, they're on a statin forever. The first CTE collects the ids of patients that were on a statin along with the first date of their diagnosis, the second those with a diagnosis, and the third those with a high lab value. After this I count those that match the above criteria.
What I would like to do is drop the assumption that once a patient is on a statin, they're on it for life. The table edw_dm.patient_medications has a column called start_dts and end_dts. This table has one row for each prescription written, with start_dts and end_dts denoting the start and end date of the prescription. End_dts could be null, which I'll take to assume that the patient is currently on this medication (it could be a missing record, but I can't do anything about this). If a patient is on two different statins, the start and ends dates can overlap, and there may be multiple records of the same medication for a patient, as in a record showing 3-11-2000 to 4-5-2003 and another for the same patient showing 5-6-2007 to 7-8-2009.
I would like to use these two columns to build a query where I'm only counting the patients that had a lab value or diagnosis done during a time when they were already on a statin, or in the first n (say 3) months after they stopped taking a statin. I'm really not sure how to go about rewriting the first CTE to get this information and how to do the comparison after the CTEs are built. I know this is a vague question, but I'm really stumped. Any ideas?
As always, thank you in advance.
Here's the current query:
WITH FAST_MEDS AS
(
select distinct
statins.mrd_pt_id, min(year(statins.order_dts)) as statin_yr
from
edw_dm.patient_medications as statins
inner join mrd.medications as mrd
on statins.mrd_med_id = mrd.mrd_med_id
WHERE mrd.generic_nm in (
'Lovastatin (9664708500)',
'lovastatin-niacin',
'Lovastatin/Niacin',
'Lovastatin',
'Simvastatin (9678583966)',
'ezetimibe-simvastatin',
'niacin-simvastatin',
'ezetimibe/Simvastatin',
'Niacin/Simvastatin',
'Simvastatin',
'Aspirin Buffered-Pravastatin',
'aspirin-pravastatin',
'Aspirin/Pravastatin',
'Pravastatin',
'amlodipine-atorvastatin',
'Amlodipine/atorvastatin',
'atorvastatin',
'fluvastatin',
'rosuvastatin'
)
and YEAR(statins.order_dts) IS NOT NULL
and statins.mrd_pt_id IS NOT NULL
group by statins.mrd_pt_id
)
select *
into #meds
from FAST_MEDS
;
--return patients who had a diagnosis in the list and the year that
--diagnosis was given
with
FAST_DX AS
(
SELECT pd.mrd_pt_id, YEAR(pd.init_noted_dts) as init_yr
FROM edw_dm.patient_diagnoses as pd
inner join mrd.diagnoses as mrd
on pd.mrd_dx_id = mrd.mrd_dx_id
and mrd.icd9_cd in
('728.89','729.1','710.4','728.3','729.0','728.81','781.0','791.3')
)
select *
into #dx
from FAST_DX;
--return patients who had a high cpk value along with the year the cpk
--value was taken
with
FAST_LABS AS
(
SELECT
pl.mrd_pt_id, YEAR(pl.order_dts) as lab_yr
FROM
edw_dm.patient_labs as pl
inner join mrd.labs as mrd
on pl.mrd_lab_id = mrd.mrd_lab_id
and mrd.lab_nm = 'CK (CPK)'
WHERE
pl.lab_val between 1000 AND 999998
)
select *
into #labs
from FAST_LABS;
-- count the number of patients who had a lab value or a medication
-- value taken sometime AFTER their initial statin diagnosis
select
count(distinct p.mrd_pt_id) as ct
from
mrd.patient_demographics as p
join #meds as m
on p.mrd_pt_id = m.mrd_pt_id
AND
(
EXISTS (
SELECT 'A' FROM #labs l WHERE p.mrd_pt_id = l.mrd_pt_id
and l.lab_yr >= m.statin_yr
)
OR
EXISTS(
SELECT 'A' FROM #dx d WHERE p.mrd_pt_id = d.mrd_pt_id
AND d.init_yr >= m.statin_yr
)
)
You probably don't need to select all of your CTE defined queries into temp tables.
I think that the query you're after has the form:
WITH FAST_MEDS(PatientID, StartDate, EndDate) AS
(
--your query for patients on statins, projecting the patient ID and the start/end date for the medication
),
FAST_DX(PatientID, Date) AS
(
--your query for patients with certain diagnosis, projecting the patient ID and the date
),
FAST_LABS(PatientID, Date) AS
(
--your query for patients with certain labs, projecting the patient ID and the date
)
SELECT PatientID
FROM FAST_MEDS
WHERE PatientID IN (SELECT PatientID FROM FAST_DX WHERE Date BETWEEN StartDate AND EndDate OR EndDate IS NULL AND StartDate < Date)
OR PatientID IN (SELECT PatientID FROM FAST_LABS WHERE Date BETWEEN StartDate AND EndDate OR EndDate IS NULL AND StartDate < Date)