Performance Table - Update Statement For 13 Week Average
Oct 16, 2013
I need to figure out the correct update statement syntax for the following integration.
I have a "Performance Table" which i insert weekly performance numbers into for each store. The table is constructed w/ columns such as Store, Weekenddate, Sales, Refunds, #ofPatients
In a "Averages Table" i have every weekenddate for each store populated. So 52 Weeks for 10 stores = 520 Rows of Store numbers & WeekendDates.
What i would like to do is run a loop or update statement which would update the store average for each weekendate based on the last 13 weeks.
This is my query
update performancestore_avgs set SalesAvg =
(select sum(SalesHit)/Count(Store) from performance_store where performance_store.weekenddate >= performancestore_avgs.weekenddate-84 and performancestore_Avgs.store = performance_store.store)
The update statement runs but the averages are completely wrong.
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Aug 18, 2014
I need developing a query to get the average count by the following:
Day - use daily info for the last ??? days
Weekly - average
- Add all days and divide by 7
- As of Saturday midnight
Monthly - average
- Add all days and divide by days in the month
- As of last save on last day of month
Quarter - average
- Add all days and divide by number of days in the quarter
- As of last day of quarter
Year - average
I don't have requirements for year as of yet.
How can I get the avery count per these timeframes?
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May 8, 2006
Hi,I have an UPDATE statement which runs very slow (about 1-2 minutes) inWeb as well as in Query Analyzer. Very plain UPDATE statement; usesindexes, etc. I though the reason might be the table being unorganizedbecause of the row expansions due to updating an existing column valuewith a larger value. Therefore, I ran a maintanenance plan whichreorganizes data and rebuilds indexes. But, it seems that there is noimprovement.Any thought or advise will be greatly appreciated.Sincerely,Pelin Bali.
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Jul 20, 2005
hiFor an unavoidable reason, I have to use row-by-row processing(update) on a temporary table to update a history table every day.I have around 60,000 records in temporary table and about 2 million inthe history table.Could any one please suggest different methods to imporve the runtimeof the query?Would highly appreciate!
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Jul 20, 2005
Below is a simple UPDATE that I have to perform on a table that hasabout 2.5 million rows (about 4 million in production) This queryruns for an enourmous amount of time (over 1 hour). Both theChangerRoleID and the ChangerID are indexed (not unique). Is thereany way to performance tune this?Controlling the physical drive of the log file isn't possible at ourclient sites (we don't have control) and the recovery model needs tobe set to "Full".UPDATE CLIENTSHISTORY SET ChangerRoleID = ChangerID WHEREChangerRoleID IS NULLAny Help would be greatly appreciated!
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Jun 14, 2007
Hi,I have table with three columns as belowtable name:expNo(int) name(char) refno(int)I have data as belowNo name refno1 a2 b3 cI need to update the refno with no values I write a query as belowupdate exp set refno=(select no from exp)when i run the query i got error asSubquery returned more than 1 value. This is not permitted when thesubquery follows =, !=, <, <= , >, >= or when the subquery is used asan expression.I need to update one colum with other column value.What is the correct query for this ?Thanks,Mani
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Mar 12, 2008
Hi all
I have a Large log table with large size data(I month only),If I run a query like SELECT * FROM <table_name> Server will go€¦very very slow€¦.
Because of large Data system is going slow€¦..
Please some body helps me with suggestion how get good performance.
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Aug 31, 2007
can plz anyone tell me how to fix the following update script. thanks
Update table
set rating =
case
when rating in
(select code from tbl_Codes
where code = '0')
then Rating = '0'
when Rating in
(select code from tbl_Codes
where code = '1')
then InternalRating = '1'
else rating
end
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Jul 30, 2007
ID DATE(dd/mm/yy) TYPE QTYIN COST_IN_AMT COST_OUT_AMT(MOVING AVERAGE)
1 01/01/2007 PURCHASE 10 1000
2 01/01/2007 PURCHAES 5 1100
3 01/01/2007 SALES -5 *TobeCalculated
4 02/01/2007 Purchase 20 9000
5 02/01/2007 SALES -10 *TobeCalculated
5 02/01/2007 purchase 50 8000
6 03/01/2007 Sales -10 *TobeCalculate
7 01/01/2007 Purchase 20 12000
I have a table when user add new sales or puchase will be added to this table ITEM_TXNS. The above date is part of the table for a ProductID . (The field is removed here)
In order to calculate the balance amount using moving average, I must calculated the cost_out_amt first on the fly.
When user add new sales I also need to determine the cost/unit for a product id using moving average. The problem is I can not just use sum, because i need to determine cost_out_amt for each sales first which will be calculated on the fly.
The reason i dont store the cost_out_amt (instead calculate on the fly) because User could Edit the previous sales/purchase txn or Insert new sales for a previous date. Example THe record with ID 9. By Adding this txn with ID 9, would cause all the cost_out_amt will be incorrect (Using moving Average) if i store the cost_amout_out on entrying txn and need to be recalculated.
Instead I just want to calculate on the fly and able to determine the cost avr for a specific point of time.
Should I just use Cursor and loop all the record and calculate the cost or maybe I can just use on Select Statement?
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Mar 31, 2008
Hello all,
I have the following SQL statement that works great for my purpose:
SELECT DATEADD(hh, DATEPART(hh, Date), DATEADD(d, DATEDIFF(d, 0, Date), 0)) AS TimePeriod, AVG(ZNT) AS Expr1, AVG(SAT) AS Expr2, AVG(RAT) AS Expr3,
AVG(RH) AS Expr4
FROM HVACValues
GROUP BY DATEADD(hh, DATEPART(hh, Date), DATEADD(d, DATEDIFF(d, 0, Date), 0))
ORDER BY TimePeriod
I'd like to do everything above but add to display only those records from 1/1/07 to 1/7/07...so a week's worth.
I'm no SQL expert but I assume that I'd add 'WHERE TimePeriod = ....' Any help is much appreciated!
Thank you very much.
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Apr 27, 2015
I compare two table with JOIN statement. Now I would like to update one of them base on result. How it to do?
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Jul 20, 2005
Hello,I have 2 ways of updating data I'm using often1) via a cursor on TABLE1 update fields in TABLE22) via an some of variables ...SELECT @var1=FLD1, @var2=FLD2 FROM TABLE1 WHERE FLD-ID = @inputVARUPDATE TABLE2SET FLDx = @var1, FLDy = @var2WHERE ...Now I have a system with 2 databases and I need to update table DB2.TABbased on data in DB1.TAB. Instead of using 1 of the 2 ways I normally use,I thought it would be much easier to get the required data immediately fromDB1.TAB in the update-statement of DB2.TAB ... but the way to do thatconfuses me. I've checked books online and a lot of newsgrouppostingsgiving good information but still I keep getting errors like this ...The column prefix 'x.ADS' does not match with a table name or alias nameused in the query.while executing the following statement ...UPDATE DB2.dbo.TABSETFLD1 = x.FLD1,FLD2 = x.FLD2,...FROM DB1.dbo.TAB x, DB2.dbo.ADSWHERE DB2.dbo.TAB.REFID = x.IDOFTAB1 AND DB2.dbo.TAB.IDOFTAB2 =@InputParameterSo in DB2.TAB I have a field REFID reffering to the keyfield IDOFTAB1 oftable DB1.TABAND I only want to update the row in DB2.TAB with the unique keyfieldIDOFTAB2 equal to variable @InputParameterDo you see what I'm doing wrong?--Thank you,Kind regards,Perre Van Wilrijk,Remove capitals to get my real email address,
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May 20, 2008
Dear Friends,
Hi I am having a problem while showing Products from SQL
Server database. Exactly I have a table named Products which has some Products
posted by admin I want to show some latest Products on my default page
based on DateTime which are displayed like show last week articles,show last two weeks articles etc on button click I written my SQL query like: searchquery = "select * from Prducts where Date between '" + System.DateTime.Now.AddDays(-7).ToShortDateString() + "' and '" + System.DateTime.Now.AddDays(-1).AddHours(23).AddMinutes(59).AddSeconds(29).ToShortDateString() + "'"; If any body knows plz help me
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Nov 15, 2013
I want to update multiple column in one table using with case statement. i need query pls..
stdidnamesubject result marks
1 arun chemistry pass 55
2 alias maths pass 70
3 babau history pass 55
4 basha hindi NULL NULL
5 hussain hindi NULL nULL
6 chandru chemistry NULLNULL
7 mani hindi NULLNULL
8 rajesh history NULLNULL
9 rama chemistry NULLNULL
10 laxman maths NULLNULL
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Jun 12, 2014
I want to update records in 1 table with the result of a select statement.
The table is called 'MPR_Portfolio_Transactions' and contains the following fields:
[PTR_SEQUENCE]
,[PTR_DATE]
,[PTR_SYMBOL]
,[PTR_QUANTITY]
,[PTR_ACUM]
And the select statement is like this:
SELECT SUM(PTR_QUANTITY) OVER (PARTITION BY PTR_SYMBOL ORDER BY PTR_DATE, PTR_SEQUENCE) AS 'ACUMULADO'
FROM MPR_portfolio_transactions
ORDER BY PTR_SYMBOL, PTR_DATE, PTR_SEQUENCE
This select statement generates one line per existing record. And what I would like to do next is to UPDATE the field 'PTR_ACUM' with the result of the 'ACUMULADO'
the key is PTR_SEQUENCE
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Jul 27, 2006
I am cleaning up a large database table that has Date keys instead of real DateTimes. To do this, I am running the following query...
UPDATE MQIC.DBO.OBSERVATION_F
SET MQIC.DBO.OBSERVATION_F.OBS_DATE = MQIC.DBO.DATE_D.ACTUAL_DATE
FROM MQIC.DBO.OBSERVATION_F INNER JOIN MQIC.DBO.DATE_D
ON MQIC.DBO.OBSERVATION_F.DATE_KEY = MQIC.DBO.DATE_D.DATE_KEY
where Actual_Date is what is being stored, and the Date_Key is to be dropped.
The particulars are this -
Date_D table - 92,000 rows - 40 MB
Observation_F - 2,000,000 rows - 3.2 GB
This is being run on a remotedly hosted rack server with an AMD processor, 1 GB RAM, 60 GB harddisk space, 20 GB used.
SQL-Server 2005 Express - SP1
If I do the same query as a SELECT Statement,
UPDATE MQIC.DBO.OBSERVATION_F
SELECT MQIC.DBO.OBSERVATION_F.DATE_KEY, MQIC.DBO.DATE_D.ACTUAL_DATE
FROM MQIC.DBO.OBSERVATION_F INNER JOIN MQIC.DBO.DATE_D
ON MQIC.DBO.OBSERVATION_F.DATE_KEY = MQIC.DBO.DATE_D.DATE_KEY
it runs to completion in about 15 min - during the entire time there is extensive used of CPU from Task Manager.
If I do the above statement, it seems to use lots of resources (50% +) for about 5 min, then falls to 5%. It just seems to sit there, for an hour + at which time I've killed the query.
This is actually the second time I tried this. The first time was on a different machine, with the P4, 3GB RAM, plenty of disk space, and using SQL-Server 2005 Standard - SP1. Exactly the same decrease in resources happened, and even though it ran several hours, no results.
Any thoughts here - not waiting long enough, memory leaks, etc.?
Thanks!
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Dec 8, 2006
Suppose your using Merge Replication.
2 Users in 2 locations issue updates to the same table. 1 updating 1 column and the other updating another column. Now in reality the actual Stored Procedure issuing the update statement is passed in all the possible columns that could change and builds an update statement that updates all columns even the ones that havent changed.
Will this break Merge Replications conflict tracking? Or does SQL Server 2005 Merge Replication pickup that in reality the 2 updates only in reality changed the values in 2 columns.
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May 2, 2008
I am trying to create a stored procedure that will take a text value passed from an application and update a table using the corresponding integer value using a CASE statement. I get the error: Incorrect syntax near the keyword 'SET' when I execute the creation of the SP. What am I missing here? This looks to me like it should work. Here is my code.
CREATE PROCEDURE OfficeMove
-- Add the parameters for the stored procedure here
@UserName nvarchar(10),
@NewLocation nchar(5),
@NewCity nvarchar(250)
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
-- Insert statements for procedure here
Execute as user = '***'
DELETE FROM [SQLSZD].[SZDDB].dbo.Employee_Office_Assignments
WHERE User_Name = @UserName
INSERT INTO [SQLSZD].[SZDDB].dbo.Employee_Office_Assignments
SET User_Name = @UserName,
Room_ID = @NewLocation
UPDATE [SQLSZD].[SZDDB].dbo.Employee_Locations
SET Office_ID =
CASE
WHEN @NewCity = 'Columbus' THEN 1
WHEN @NewCity = 'Cleveland' THEN 2
WHEN @NewCity = 'Cincinnati' THEN 4
WHEN @NewCity = 'Raleigh' THEN 5
WHEN @NewCity = 'Carrollwood' THEN 6
WHEN @NewCity = 'Orlando' THEN 7
END
WHERE User_Name = @UserName
END
GO
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Oct 20, 2014
I have a stored proc that contains an update which utilizes a case statement to populate values in a particular column in a table, based on values found in other columns within the same table. The existing update looks like this (object names and values have been changed to protect the innocent):
UPDATE dbo.target_table
set target_column =
case
when source_column_1= 'ABC'then 'XYZ'
when source_column_2= '123'then 'PDQ'
[Code] ....
The powers that be would like to replace this case statement with some sort of table-driven structure, so that the mapping rules defined above can be maintained in the database by the business owner, rather than having it embedded in code and thus requiring developer intervention to perform changes/additions to the rules.
The rules defined in the case statement are in a pre-defined sequence which reflects the order of precedence in which the rules are to be applied (in other words, if a matching value in source_column_1 is found, this trumps a conflicting matching value in source_column_2, etc). A case statement handles this nicely, of course, because the case statement will stop when it finds the first "hit" amongst the WHEN clauses, testing each in the order in which they are coded in the proc logic.
What I'm struggling with is how to replicate this using a lookup table of some sort and joins from the target table to the lookup to replace the above case statement. I'm thinking that I would need a lookup table that has column name/value pairings, with a sequence number on each row that designates the row's placement in the precedence hierarchy. I'd then join to the lookup table somehow based on column names and values and return the match with the lowest sequence number, or something to that effect.
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Jul 20, 2005
Hi All,I have a database that is serving a web site with reasonably hightraffiic.We're getting errors at certain points where processes are beinglocked. In particular, one of our people has suggested that an updatestatement contained within a stored procedure that uses a wherecondition that only touches on a column that has a clustered primaryindex on it will still cause a table lock.So, for example:UPDATE ORDERS SETprod = @product,val = @valWHERE ordid = @ordidIn this case ordid has a clustered primary index on it.Can anyone tell me if this would be the case, and if there's a way ofensuring that we are only doing a row lock on the record specified inthe where condition?Many, many thanks in advance!Much warmth,Murray
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Nov 30, 2015
We are trying to compare our current calendar week (based on Monday being the first day of the week) with the previous calendar week.Â
I'm trying to produce a line chart with 2 axis:
- x axis; the day of the week (Mon, Tues, Wed etc - it is fine for this to be a # rather than text e.g. 1 = Mon, 2 = Tues etc)
- y axis; the cumulative number of ordersÂ
The chart needs two series:
Previous Week. The running count of orders placed that week.Â
Current Week. The running count of orders placed this week.Â
Obviously in such a chart the 'Current Week' series is going not going to have values along the whole axis until the end of the week. This is expected and the aim of the chart is to see the current week compares against the previous week for the same day.Â
I have two tables:
Orders TableCalendar Table
The calendar table's main date column is [calDate] and there are columns for the usual [calWeekNum], [calMonth] etc.Â
My measure for counting orders is simply; # Orders: = countrows[orders].
How do I take this measure and then work out my two series. I have tried numerous things such as adapting TOTALMTD(), following articles such as these:
-Â [URL] ...
-Â [URL] ...
But I have had no luck. The standard cumulative formulas do work e.g. if I wanted a MTD or YTD table I would be ok, it's just adjusting to a WTD that is causing me big issues.
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Apr 9, 2013
How can I get Saturday's date given the week number?
This is my week number, SELECT DATEPART(WEEK, DATEADD(MONTH, +3, ApptDt2)). I need to get Saturday's date from this week.
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Sep 17, 2015
i have the following table I need to select dates grouping them by weeks, my week start is Saturday to Friday
CREATE TABLE weekdays
(
datevalue datetime NOT NULL
, numericvalue INT NOT NULL
);
INSERT INTO weekdays (datevalue, numericvalue) VALUES
[code]....
The output should look like this
weeknototalvalue
362015-09-01 00:00:00.000
362015-09-02 00:00:00.000
372015-09-07 00:00:00.000
372015-09-08 00:00:00.000
382015-09-12 00:00:00.000
382015-09-13 00:00:00.000
382015-09-14 00:00:00.000
392015-09-19 00:00:00.000
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Jun 21, 2015
Calculation of an average using DAX' AVERAGE and AVERAGEX.This is the manual calculation in DW, using SQL.In the tabular project (we're i've noticed that these 4 %'s are in itself strange), in a 1st moment i've noticed that i would have to divide by 100 to get the same values as in the DW, so i've used AVERAGEX:
Avg_AMP:=AVERAGEX('Fct Sales';'Fct Sales'[_AMP]/100)
Avg_AMPdollar:=AVERAGEX('Fct Sales';'Fct Sales'[_AMPdollar]/100)
Avg_FMP:=AVERAGEX('Fct Sales';'Fct Sales'[_FMP]/100)
Avg_FMPdollar:=AVERAGEX('Fct Sales';'Fct Sales'[_FMPdollar]/100)
The results were, respectively: 701,68; 2120,60...; -669,441; and  finally **-694,74** for Avg_FMPdollar.i can't understand the difference to SQL calculation, since calculations are similar to the other ones. After that i've tried:
test:=SUM([_FMPdollar])/countrows('Fct Sales') AND the value was EQUAL to SQL: -672,17
test2:=AVERAGE('Fct Sales'[_Frontend Margin Percent ACY]), and here, without dividing by 100 in the end, -696,74...
So, AVERAGE and AVERAGEX have a diferent behaviour from the SUM divided by COUNTROWS, and even more strange, test2 doesn't need the division by 100 to be similar to AVERAGEX result.
I even calculated the number of blanks and number of zeros on each column, could it be a difference on the denominator (so, a division by a diferente number of rows), but they are equal on each row.
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May 23, 2007
Hi all,
I'd like to add a yesterday dimension member to a new dimension, like a "Time Utility" dimension, that references the second last day of non empty data in a cube.
At the moment, I'm doing this:
Code Snippet
create member [MIA DW].[DATE TIME].[Date].[Yesterday]
as [DATE TIME].[Date].&[2007-01-01T00:00:00]
select [Measures].members on 0,
non empty [DATE TIME].[Date].members on 1
from [MIA DW]
But the [yesterday] member does not seem to belong to [DATE TIME].[Date].members?
So I guess there's two questions:
1) Can I have a new empty dimension which contains all these special members like "Yesterday" or "This Week" and "Last Week" (these last two obviously refer to a set of Dates)
2)How come the Yesterday member is not returned by the .members function?
Thanks
Greg
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Jan 5, 2007
I have two tables, table a holds all the votes by users of each element in table b. I was wondering, how do I get the average of all those votes in table a that relate to that each instance of a element in table b. For example table b has two elements created by a certain user that has been voted 5 times each by users with scores like 2, 5, 4, 2 , 2 for both of them. I just need to get the average of those numbers that pertain to those elements in table b. Thanks for any help.
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Feb 20, 2001
How do I find the average size of a row in a table? I need to calculate a row size in a number of tables, then sum those to find the average size of one record ( a hotel guest in this case), which includes entries in a dozen tables.
Thanks
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Aug 21, 2002
I want to find out the average rwo size of a table in sql server 2000. How can i achive this requirment? Please let me know how can i do this?
Thanks & regards,
Dishant Sharma
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Jan 29, 2014
I am adding week hrs using while loop , but it can continue next week hrs also.
I can get every week start hrs while update @tem1 table
employeeidreportdatereportatleftattoaccountwrhrn
12902014-01-29 00:00:00.00009:3019:1556001
12902014-01-28 00:00:00.00009:0018:4555802
12902014-01-27 00:00:00.00009:0018:455585583
12902014-01-25 00:00:00.00008:0010:0012004 -- week end
12902014-01-24 00:00:00.00009:1718:4554105
12902014-01-23 00:00:00.00009:1918:4654606
12902014-01-22 00:00:00.00009:1718:4754507
12902014-01-21 00:00:00.00009:1618:3552608
12902014-01-20 00:00:00.00009:1818:555435439
My loop statement
while(select MAX(wrh) from @tem1 where wrh = 0) < 1
begin
update @tem1
set wrh = (select toaccount from @tem1
where reportdate = (select min(reportdate) from @tem1 where wrh = 0))+(select max(wrh) from @tem1)
where wrh = (select max(wrh) from @tem1 where wrh = 0 )
and reportdate = (select min(reportdate) from @tem1 where wrh = 0)
end
this is the result while executing loop statement .
employeeidreportdatereportatleftatdehdrhwehwrh
129029 Jan 201409:3019:15008:0009:20024:00065:54
129028 Jan 201409:0018:45008:0009:18016:00056:34
129027 Jan 201409:0018:45008:0009:18008:0009:18
129025 Jan 201408:0010:00005:0002:00045:00047:16 -- week end
129024 Jan 201409:1718:45008:0009:01040:00045:16
129023 Jan 201409:1918:46008:0009:06032:00036:15
129022 Jan 201409:1718:47008:0009:05024:00027:09
129021 Jan 201409:1618:35008:0008:46016:00018:04
129020 Jan 201409:1818:55008:0009:03008:0009:03
How to update only that week hrs , don't continue next week...
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Apr 29, 2008
In my reports I am extracting the data of number of people joined in all the weeks of the year. And in one of reports I have to extract the data of the number of people joined until the last week from the first week. I am trying out all the logics but nothing is working for me as such. Can any one help me with this issue??????
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Jul 23, 2015
I need a Select sentence that return me the first week of the month for a given week.
For example If I have week number 12 (Begins 2015/03/16 and Ends 2015/03/22) I need that returns 9, I mean Week number 9 wich is the first week of march (having in mind @@DATEFIRST).
I only need give a week number of the year and then returns the week number of the first week of that month.
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Feb 2, 2008
I'm looking for a way to convert the [week number, year] back to the date for the 1st day of that week.
Example (assuming DATEFIRST has been set to 1) : Week 3, 2008 = January 14, 2008
Is there a SQL function that will do this?
Thanks,
Mike
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Nov 30, 2011
how to average the best X of Y records in a table for each member. Here's what I have for columns:
Member_ID
Year
Month
MonthlySpend (summary value for month)
Basically, I'm trying to find out the average monthly spend for each member's best 4 of the last 6 months (the best months will vary by member of course). I thought this would be simple (and maybe it is) but I am having difficulty figuring this out. I'm using MS SQL 2000.
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