Slow Query Due To Criteria

Jan 24, 2008

I have a query in access that is running extremely slow and I'm trying to find a better way to write it. It appears to be the criteria statement that is causing the lag. Is there a better way to write this? And unfortunately I have to keep it in access.

query:
SELECT DISTINCT "JBC" AS ClientCode, PaymentDetail.PatientNumber, Procedures.CaseNumber, IIf(IsNull([TicketNumber]),Procedures.patientnumber & Year(Procedures.dateofservice) & Month(Procedures.dateofservice) & Day(Procedures.dateofservice),Procedures.ticketnumber) AS ClaimNumber, PaymentDetail.PaymentCounter, PaymentDetail.TransAmount, Payments.PaymentDate, PaymentDetail.AccountingDate, PaymentDetail.TransDate, payments.PaymentType & "-" & Adjustments.adjustmentcode AS CombinedPmtType, Payments.PaymentType, Payments.PaymentCode, Adjustments.AdjustmentCode, PaymentCodes.BriefDescription, PaymentCodes.LongDescription, Payments.CarrierCode, Payments.Remarks, Procedures.ProcedureCode, Procedures.DateOfService, PaymentDetail.DetailCounter
FROM ((((PaymentDetail LEFT JOIN Procedures ON (PaymentDetail.PaymentCounter = Procedures.Counter) AND (PaymentDetail.AccountingDate = Procedures.AccountingDate) AND (PaymentDetail.PatientNumber = Procedures.PatientNumber)) LEFT JOIN Payments ON (PaymentDetail.TransDate = Payments.AccountingDate) AND (PaymentDetail.TransCounter = Payments.Counter) AND (PaymentDetail.PatientNumber = Payments.PatientNumber)) LEFT JOIN PaymentCodes ON Payments.PaymentCode = PaymentCodes.PaymentCode) LEFT JOIN Adjustments ON (PaymentDetail.TransDate = Adjustments.AccountingDate) AND (PaymentDetail.PatientNumber = Adjustments.PatientNumber)) LEFT JOIN AdjustmentCodes ON Adjustments.AdjustmentCode = AdjustmentCodes.AdjustmentCode
WHERE (((Procedures.CaseNumber)=0) AND ((PaymentDetail.TransAmount)<>0) AND ((Payments.PaymentType) Is Null) AND ((PaymentDetail.DetailCounter)=2)) OR (((Procedures.CaseNumber)=0) AND ((PaymentDetail.TransAmount)<>0) AND ((Payments.PaymentType) Is Null) AND ((PaymentDetail.DetailCounter)=5) AND ((AdjustmentCodes.InsuranceIndicator)="N"));

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Transact SQL :: Use Query Results As Select Criteria For Another Query

Jul 10, 2015

I have a query that performs a comparison between 2 different databases and returns the results of the comparison. It returns 2 columns. The 1st column is the value of the object being compared, and the 2nd column is a number representing any discrepancies.What I would like to do is use the results from this 1st query in the where clause of another separate query so that this 2nd query will only run for any primary values from the 1st query where a secondary value in the 1st query is not equal to zero.I was thinking of using an "IN" function in the 2nd query to pull data from the 1st column in the 1st query where the 2nd column in the 1st query != 0, but I'm having trouble ironing out the correct syntax, and conceptualizing this optimally.

While I would prefer to only return values from the 1st query where the comparison value != 0 in order to have a concise list to work with, I am having difficulty in that the comparison value is a mathematical calculation of 2 different tables in 2 different databases, and so far I've been forced to include it in the select criteria because the where clause does not accept it.Also, I am not a DBA by trade. I am a system administrator writing SQL code for reporting data from an application I support.

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Feb 9, 2004

I have a text box that is used to submit stock symbols that are to be saved in a sql table. The symbols are to be separated by a space or a comma (I don't know which, yet). I want to retrieve the symbols later to be used in a query, but I don't know how to get the symbols in the proper string format for the query, eg

The symbols are stored in the tables as: A B C D
The query string criteria would look like: IN('A', 'B', 'C', 'D')

The IN('A', 'B', 'C', 'D') citeria would be the values in the @Symbol variable in this SPROC

SELECT a_Name_Symbol.Symbol, a_Financials.Revenue
FROM a_Financials INNER JOIN
a_Name_Symbol ON a_Financials.Symbol = a_Name_Symbol.Symbol
WHERE (a_Name_Symbol.Symbol @Symbol)
ORDER BY a_Name_Symbol.Symbol

Is there a slick (ie easy) way to change the contents entered in the text box (A B C D) into IN('A', 'B', 'C', 'D') ?

Thanks,

Paul

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Jan 4, 2006

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Jul 30, 2007

I have four criterias in my .aspx page. They are "First Name, Last Name, Title, Year". I have a Book and an Author table. The Author table would contain all the author's information and the Book table contains all the books information such as title, publisher, subject, and so on. So here's what I'm trying to do.

I want to write a transaction statement that will query the four criterias above if the criteria textbox is not black. So for example, when the user click the submit button, all the four criteria fields are filled except Year. That means the query would search the Author and Book tables for "First Name, Last Name, Title" but not "Year" for any potential matches. I also wanted to use "Like" instead of "=" for a wider search.


Actually I'm trying to create a store procedure that will accept those four criterias and search the tables based on those criterias.

Any help is appreciated.

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Best Practice Question: JOIN Criteria Vs. WHERE Criteria

May 24, 2004

For example, consider the following queries:


DECLARE @SomeParam INT
SET @SomeParam = 44

SELECT *
FROM TableA A
JOIN TableB B ON A.PrimaryKeyID = B.ForeignKeyID
WHERE B.SomeParamColumn = @SomeParam

SELECT *
FROM TableA A
JOIN TableB B ON A.PrimaryKeyID = B.ForeignKeyID AND B.SomeParamColumn = @SomeParam


Both of these queries return the same result set, but the first query filters the results in the WHERE clause whereas the the second query filters the results in the JOIN criteria. Once upon a time a DBA told me that I should always use the syntax of the first query (WHERE clause). Is there any truth to this, and if so, why?

Thanks.

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Oct 19, 2013

I'm fairly new in SQL. Been trying for months to create the right script for this particular case but still cannot give me 100% result as required.

SCENARIO :

I am required to query from 2 tables for those unique record that meets both conditions below:-
1. Status is 1 @ max (trans_id), paychnl = CC
2. Status is 2 @ max (trans_id), paychnl = A or B

FYR, 2 tables and respective columns to query are as below:-
table PTFF --> col ID, TRANS_ID,TRANSDATE,EFFDATE,TRANSCODE
table CHFF --> col STATUS,PAYCHNL

FYI, status refers to the paychnl method status:-
==> 1 means the current paychnl method
==> 2 means the previous paychnl method

paychnl method can be multiple because it will be defined as 2 for all the histories' paychnl chosen earlier, but 1 should only be unique as it is the latest paychnl chosen for each unique ID. however, it may appear more than once when it's taking those in earlier TRANSDATE, so here we would need the max trans_id as it will show the latest updated TRANSDATE.

Apart from that, I need only those most recent paychnl to be A or B and the latest paychnl is CC so, this been indicated by the same max trans_id for the same ID.

Aft trying so many times on this MAX command but failed to get any result, I only managed to come up to this part only. please refer below:-

table PTFF --> col ID, TRANS_ID,TRANSDATE,EFFDATE,TRANSCODE
table CHFF --> col STATUS,PAYCHNL

SELECT DISTINCT PTFF.TRANSCODE,PTFF.ID,PTFF.TRANS_ID,PTFF.TRANSDATE,PTFF.EFFDATE, CHFF.STATUS,CHFF.PAYCHNL

FROM DBO.PTFF PTFF
JOIN DBO.CHFF CHFF
ON CHFF.ID = PTFF.ID
WHERE
PTFF.TRANSDATE BETWEEN 130501 AND 130831
AND PTFF.TRANSCODE='T522'
AND (CHFF.STATUS=1 AND CHFF.PAYCHNL='CC' OR (CHFF.STATUS=2 AND (CHFF.PAYCHNL='A' OR CHFF.PAYCHNL='B')))

However, the script above returns :-

1. All those records with STATUS 1 regardless paychnl is A or B in most recent status 2,
2. Expected results also appear ==> 1 same ID with status 1 while paychnl=CC and status 2 while paychnl=A or B
3. Also duplicates of expected results but for different TRANSDATE and not at MAX TRANS_ID

Samples of the result:-

IDSTATUSTRANS_IDPAYCHNLTRANSDATEEFFDATETRANSCODE
51881712CC13082920130920T522
9361164CC13081620140813T522
78531153CC13082020130814T522
8949151CC13081220130801T522
8949251B13081220130801T522
19081455CC13051620131129T522
19082455A13051620131129T522
19081409CC11101920111129T522
19082409A11101920111129T522
19081404CC11092920111129T522
19082404B11092920111129T522

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Jun 23, 2006

Getting a weird error while trying out a query from Access 2003 on aSQL Server 2005 table.Want to compute the amount of leave taken by an emp during the year.Since an emp might be off for half a day (forenoon or afternoon), havethe following computed field:SessionOff: ([ForenoonFlag] And [AfternoonFlag])The query works fine when there's no criterion on SessionOff.However, when I try to get the records where the SessionOff equals 0, Iget the following error:~~~~~ODBC--call failed. [Microsoft][SQL Native Client][SQL server]Incorrect syntax near the keyword 'NOT'. (#156)~~~~~I checked the SQL of the Access query, but there's no NOT anywhere init:~~~~~SELECT tblWorkDateAttendance.*FROM tblWorkDate INNER JOIN tblWorkDateAttendance ONtblWorkDate.WorkDate = tblWorkDateAttendance.WorkDateWHERE (((([ForenoonFlag] And [AfternoonFlag]))=0) AND((tblWorkDateAttendance.WorkDate)<Date()) AND((Year([tblWorkDate].[WorkDate]))=Year(Date())) AND((Weekday([tblWorkDate].[WorkDate])) Between 2 And 6) AND((tblWorkDate.HolidayFlag)=False));~~~~~What gives?

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Mar 20, 2015

I am trying to write a query that gives me the personal records from speed skaters on e.g. the 500 mtrs. I do this with the query:

SELECT cdsDistance AS Distance
, prsFirstName
, prsLastName
, min(crtFinalTime) AS MinTime
FROM tb....... INNER JOIN etc..
GROUP BY cdsDistance, prsFirstName, prsLastName
ORDER BY min(crtFinalTime)

In itself this works fine. However, there are complicating factors. Sometimes a speed skater has multiple PRs, meaning the he/she has the same fastest time more than once.

If these times are achieved on multple days, the 1st date is the official PR. (meaning: "Min of racedate")
If they are raced on the same day the 1st race is the PR (meaning: "Min of distancenumber")

Changing the code to:

SELECT cdsDistance AS Distance
, prsFirstName
, prsLastName
, MIN(crtFinalTime) AS MinTime
, MIN(cdsStartDate) AS RaceDate
, MIN(cdsDistanceNumber) AS DistanceNumber

FROM tb.......
GROUP BY cdsDistance, prsFirstName, prsLastName
ORDER BY min(crtFinalTime)

This gives me the wrong outcome because it gives me the "MIN" of every field, and they are not necessarily on the same row.

An option would be to calculate min(crtFinalTime), if for a person there is more than 1 result, calculate min of date, and then (if there is still more than 1 row) min of distancenumber.

Seems complicated, and I have the feeling there must be a better way (apart from: how to get this code)

Stacking subqueries in the FROM statement seems like a option be costly (time wise). There are more than 10 million rows (and growing) to run through.

As an example a few times:

DistanceFirst nameLast name Time Date Distance nr.
500 Yuya Oikawa 34.49 201311155
500 Yuya Oikawa 34.49 201311153
500 Yuya Oikawa 34.49 201311172

Yuya has 3 best times (34.49), 15-11-2013 is the 1st date, then distance nr 3 is the 1st distance raced. Therefore the 2nd row is the only row I would like to get in my endresult.

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Jul 17, 2006

Time       Price   Volume
090048       510      6749
090122       510      2101
090135       510      1000
090204       505      2840
090213       505      220
090222       505      1260
090232       505      850
090242       505      200
090253       510      1200
090313       510      570
090343       510      250
090353       510      160
 
Criteria
Retrieve records with independent price and its total volume per minute
 
SELECT SUBSTRING(st,1,4) AS Ttime,d_price AS Price,SUM(l_cum) AS Volume FROM cmd4
WHERE sd='20060717' AND serial='0455'
GROUP BY SUBSTRING(st,1,4),d_price,l_cum
 
Result of the above query: -
Time  Price Volume                 
0900    510     6749
0901    510     1000
0901    510     2101
0902    505     200
0902    505     220
0902    505     850
0902    505    1260
0902    505    2840
0902    510    1200
0903    510    160
0903    510    250
0903    510    570
 
 
THE FOLLOWING RESULT STILL NOT A TOTAL FOR A MINUTE]
E.G
 
0901    510            1000
             +
0901    510            2101
            =         
0901    510            3101 <- I NEED THIS
 
Can any one advice or give me tips over this. Please
 

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Aug 17, 2006

Can€™t understand the Query execution interval, for every one criteria it takes extra 60 seconds. Help please?,  







Query A

SELECT TOP 15 * FROM CMD4 AS T1 WHERE T1.ST IN

(SELECT max(T2.ST) FROM CMD4 AS T2 WHERE T1.SERIAL=T2.SERIAL

AND T2.sd='20060817') AND sd='20060817'

--AND STOCKNAME like 'A%'

ORDER BY D_CUM desc;

The above query take 2 seconds to return result







Query B

SELECT TOP 15 * FROM CMD4 AS T1 WHERE T1.ST IN

(SELECT max(T2.ST) FROM CMD4 AS T2 WHERE T1.SERIAL=T2.SERIAL

AND T2.sd='20060817') AND sd='20060817' AND STOCKNAME like 'A%' ORDER BY D_CUM desc

This query same as above but " AND STOCKNAME like 'A%'" Criteria only added but it takes 01 minute 43 seconds to return result. why it is like that where i need to adjust the query i have no idea. please help

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Nov 19, 2004

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the query thats causing teh problem is


--//////////////////////////////////// this is the one thats running


Print 'Update Provider 04-05 EmAdmsCount12mths : ' + CAST(GETDATE() AS varchar)
GO
Update Provider_APC_2004_05
set EmAdmsCount12mths =
(Select COUNT(*)-1
from Combined_Admissions
where ((Combined_Admissions.NHSNumber = Provider_APC_2004_05.NHSNumber) or
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Sep 25, 2006

Hi there

Running query analyzer against two different server.

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thx



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Hi,

I have a query that takes minutes to execute, even through there are about 300,000 records are being processed. I would appreciate any help with optimizing that query.
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date returns
---- -------
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.
.
.
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Here is my query:

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Thanks in advance. Clive

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T4.NAME,
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T6.PRDINT_ID,
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FROM
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LEFT OUTER JOIN dbo.S_ORG_EXT T2 ON T1.TARGET_OU_ID = T2.ROW_ID
LEFT OUTER JOIN dbo.S_ADDR_ORG T3 ON T2.PR_ADDR_ID = T3.ROW_ID
LEFT OUTER JOIN dbo.S_PRI_LST T4 ON T1.PRI_LST_ID = T4.ROW_ID
LEFT OUTER JOIN dbo.S_PRI_LST T5 ON T1.RATE_LST_ID = T5.ROW_ID
LEFT OUTER JOIN dbo.S_ACT_PRDINT T6 ON T1.ROW_ID = T6.ACTIVITY_ID
LEFT OUTER JOIN dbo.S_ADDR_PER T7 ON T1.TARGET_PER_ADDR_ID = T7.ROW_ID
LEFT OUTER JOIN dbo.S_CONTACT T8 ON T1.TARGET_PER_ID = T8.ROW_ID
LEFT OUTER JOIN dbo.S_EXP_RPT T9 ON T1.PR_EXP_RPT_ID = T9.ROW_ID
LEFT OUTER JOIN dbo.S_OPTY T10 ON T1.OPTY_ID = T10.ROW_ID
LEFT OUTER JOIN dbo.S_PART_RPR T11 ON T1.PART_RPR_ID = T11.ROW_ID
LEFT OUTER JOIN dbo.S_PROD_DEFECT T12 ON T1.SRA_DEFECT_ID = T12.ROW_ID
LEFT OUTER JOIN dbo.S_PROD_INT T13 ON T6.PRDINT_ID = T13.ROW_ID
LEFT OUTER JOIN dbo.S_PROJ T14 ON T1.PROJ_ID = T14.ROW_ID
LEFT OUTER JOIN dbo.S_SRC T15 ON T1.SRC_ID = T15.ROW_ID
LEFT OUTER JOIN dbo.S_SRV_REQ T16 ON T1.SRA_SR_ID = T16.ROW_ID
LEFT OUTER JOIN dbo.S_TMSHT_LINE T17 ON T1.PR_TMSHT_LINE_ID = T17.ROW_ID
LEFT OUTER JOIN dbo.S_CONTACT T18 ON T1.X_CLIENT_ID = T18.ROW_ID
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WHERE
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(T1.TEMPLATE_FLG != 'Y' AND T1.TEMPLATE_FLG != 'P' OR T1.TEMPLATE_FLG IS NULL)) AND
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I have a query that is taking too long to run. It take 14 seconds to return 6800 rows. However, if I move the query out of a stored proc, it takes 1 second. I want to understand this issue and ideally fix the stored proc case.

I've simplified my actual queries for readability.


-- @filter is value to filter against or NULL to return all records.
CREATE PROCEDURE queryPlayerStations(@filter INTEGER)
AS
SELECT * FROM MyTable
-- Other joins and query logic omitted for brevity
WHERE ((@filter IS NULL) OR (MyTable.Column = @filter))
GO

DECLARE @filter INTEGER
SET @filter = NULL

-- Takes 14 seconds to return 6800 rows. That's unacceptable performance
EXEC dbo.queryPlayerStations @filter


When I run the query directly in Query Analyzer, it runs very fast.


DECLARE @filter INTEGER
SET @filter = NULL

-- Takes ~1 second to return 6800 rows. That's great performance
SELECT * FROM MyTable
-- Other joins and query logic omitted for brevity
WHERE ((@filter IS NULL) OR (MyTable.Column = @filter))


When I put the parameters in the stored proc it runs fast.


CREATE PROCEDURE queryPlayerStations
AS
DECLARE @filter INTEGER
SET @filter = NULL

SELECT * FROM MyTable
-- Other joins and query logic omitted for brevity
WHERE ((@filter IS NULL) OR (MyTable.Column = @filter))
GO

-- Takes ~1 second to return 6800 rows. That's great performance
EXEC dbo.queryPlayerStations


Anyone have any ideas what I can do to improve the stored proc case?

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Hi guys/gals

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UPDATE Tbl_a

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thanks,

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