T-SQL (SS2K8) :: Set Current Row Using Values In Previous Row
Feb 25, 2015
I've tried all sorts of code i.e. cross apply, running totals, etc. Cannot get this to work. I am trying to add a previous row value but only doing it for each group.
Source records
DECLARE @tbl table (Item int, Sequence int, StartTime datetime, Duration int)
INSERT INTO @tbl (Item,Sequence,StartTime, Duration) VALUES (1,1,'2/25/2015 12:00 am',10),(1,2,null,20),(1,3, null,22),(2,1,'2/25/2015 1:00 am',15),(2,2,null,30),(2,3, null,45),(2,4, null,5)
select * from @tbl
ItemSequenceStartTimeDuration
1102/25/15 0:0010
12null 20
13null 22
2102/25/15 1:0015
22null 30
23null 45
2 4 null 5
I would like to set the start time of the next row to be equal to the previous row time + duration. I know the start time of each group of 'Items' when the 'Sequence' number = 1. The last 'duration' value in the group would be ignored.
My expected output would be:
ItemSequenceStartTimeDuration
1102/25/15 0:0010
1202/25/15 0:1020
1302/25/15 0:3022
2102/25/15 1:0015
2202/25/15 1:1530
2302/25/15 1:4545
2402/25/15 2:305
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Jul 2, 2014
I am novice to intermediate writer of T-SQL. Here is my current Query:
SELECT [FISCALYEAR],
[ACCTPERIOD],
SUM([ACTIVITYDEBIT]) AS TrialBalanceDebit,
[POSTINGTYPE]
FROM [dbo].[TB_Lookup]
WHERE [POSTINGTYPE]='Profit & Loss'
GROUP BY [FISCALYEAR],[ACCTPERIOD], [POSTINGTYPE]
ORDER BY acctperiod ASCand this is what is produces.
FISCALYEARACCTPERIODTrialBalanceDebitPOSTINGTYPE
2014 201401 282361372.13000 Profit & Loss
2014 201402 227246272.86000 Profit & Loss
2014 201403 315489534.33000 Profit & Loss
2014 201404 287423793.76150 Profit & Loss
2014 201405 256521290.76000 Profit & Loss
2014 201406 65582951.30000 Profit & Loss
Now I need a way to add another field that takes the TrialBalanceDebit from current ACCTPERIOD and adds it to the Previous ACCTPERIOD TrialBalanceDebit.
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Jan 21, 2015
I have a table with score info for each group, and the table also contains historical data, I need to get the ranking for the current week and previous week, here is what I did and the result is apparently wrong:
select CurRank = row_number() OVER (ORDER BY cr.CurScore desc) , cr.group_name,cr.CurScore
, lastWeek.PreRank, lastWeek.group_name,lastWeek.PreScore
from
(select group_name,
Avg(case when datediff(day, asAtDate, getdate()) <= 7 then sumscore else 0 end) as CurScore
[Code] ....
The query consists two parts: from current week and previous week respectively. Each part returns correct result, the final merged result is wrong.
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Mar 23, 2014
I am working on a rewards program and I have a table whenever customer completes a trip, his total fare,business points earned for that particular trip and respective Promotional points gets inserted.
Now I have a scenario whenever customer business points accumulates to 10 then need to award 3 promotional points.
If Business Points=14 for a single trip then for the first 10 points respective Promo points will be awarded and the remaining 4 points should get carry forward for the next trip and this 4 points should get accumulated with the next trip Business Points and so on.
Basically need to check for every 10 Business points accumulated award some Promo points and carry forward remaining points.
Here is the sample table structure and data :
CREATE TABLE [dbo].[tblRedeems]
(
[Mobileno] [varchar](50) NOT NULL,
[TripNo] [int] NOT NULL,
[CustomerName] [varchar](50) NULL,
[TripEndTime] DATETIME NOT NULL,
[Code] .....
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May 6, 2014
I have 2 identical tables one contains current settings, the other contains all historical settings.I could create a union view to display the current values from table A and all historical values from table B, butthat would also require a Variable to hold the tblid for both select statements.
Q. Can this be done with one joined or conditional select statement?
DECLARE @tblid int = 501
SELECT 1,2,3,4,'CurrentSetting'
FROM TableA ta
WHERE tblid = @tblid
UNION
SELECT 1,2,3,4,'PreviosSetting'
FROM Tableb tb
WHERE tblid = @tblid
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Oct 1, 2006
Hi all,
I need help writing a query that will subtract the values of 2 rows from the same column to display in the result set. Some background information: a table has a sales column that keeps track of sales by the minute, but this is done in a cumulative manner, i.e, sales at row 3(minute 3) = sales recorded @ minute 2 plus sales @ minute 3. Therefor to get the actual sale at min 3, i would have subtract value at row 2 from row 3. make sense? it sounds very easy but I am having a hard time refering back to the previous row and am dealing with more than 1000 rows. i thought about doing a self join on the table but could not get it to do what i want.
would appreciate any help i can get. thanks
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May 19, 2012
I am trying to create a stored procedure where i would like to fetch the next previous and current rows from a particular pagename which is stored in a table with sorting of dateadded
like my products table structure
id
iQty
strProductTitle
strPageName
DtAdded
DtApproved
my dummy records are like
1 13 'PCHDD' 'PCHDD' '2009-12-03 04:32:30.363' '2009-12-04 04:32:30.363'
2 30 'SDRAM' 'SD_Ram' '2009-12-03 04:32:30.363' '2009-12-06 04:32:30.363'
3 12 'Pen Drive' 'Pendrive' '2009-12-03 04:32:30.363' '2009-12-05 04:32:30.363'
4 3 'Note Book' 'NoteBook' '2009-12-03 04:32:30.363' '2009-12-08 04:32:30.363'
5 15 'VIO' 'VIO' '2009-12-03 04:32:30.363' '2009-12-06 04:32:30.363'
6 19 'PS2' 'PS_2' '2009-12-03 04:32:30.363' '2009-12-09 04:32:30.363'
7 31 'PS3' 'PS_3' '2009-12-03 04:32:30.363' '2009-12-02 04:32:30.363'
8 23 'WII' 'WII' '2009-12-03 04:32:30.363' '2009-12-10 04:32:30.363'
9 22 'Speakers' 'Speakers' '2009-12-03 04:32:30.363' '2009-12-16 04:32:30.363'
10 12 'Iphone' 'I_phone' '2009-12-03 04:32:30.363' '2009-12-15 04:32:30.363'
now if i query for a record like
I_phone
i should get
Prv Detail I_pad row
11 23 'Ipad' 'I_pad' '2009-12-03 04:32:30.363' '2009-12-11 04:32:30.363'
Current Detail I_phone
10 12 'Iphone' 'I_phone' '2009-12-03 04:32:30.363' '2009-12-15 04:32:30.363'
Next Record Speakers
9 22 'Speakers' 'Speakers' '2009-12-03 04:32:30.363' '2009-12-16 04:32:30.363'
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Feb 10, 2014
I have table 'Open_Months' as shown below
Emp_IdMonthYear
00FBG 42013
I need current month and previous 2 months, for this i have concatinated month and year column into date formate, the query for this as shown below
SELECT cast(CONVERT(datetime, CONVERT(varchar(4), OM_Year) + RIGHT('0' + CONVERT(varchar(2), OM_Month), 2) + '01', 112) AS Datetime) from Open_Months where OM_Emp_ID = '00FBG'
Date
2013-04-01
From the above date I need to find current month and its previous 2 months.
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Mar 3, 2014
My current code returns account_number with multiple start_date regardless of the value is same or not. However, I would like to get only the account number when the value on start_date is different within same account_number.
select
acct_number
count(start_date) from table_A
group by acct_number, start_date
having(count(start_date) > 1)
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Nov 10, 2005
Hi,
I have to compare the previous row with current row in a table in SQL Server 2000. Please help me how to do this in a optimized way. Table contains nearly 30 columns and rows count is more than 10 digits.
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Sep 25, 2015
I need to return the previous row value if it is negative in current row. For example, in the below table for ID=7 i need the value 1305(ID=4) since 6,5 are negative values.
Existing
values
ID
Input
ID
Input
[code]...
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Jul 28, 2014
I need to get previous month data in the table based on current date.
In case of execution of each month, the data for previous month should come with date as between
create table TestDate
(Sno Int,
Name varchar(100),
DateofJoin datetime)
insert into TestDate values (1,'Raj', '2/21/2014')
insert into TestDate values (1,'Britto', '6/12/2014')
insert into TestDate values (1,'Kumar', '5/14/2014')
insert into TestDate values (1,'Selva', '6/27/2014')
insert into TestDate values (1,'Ravi', '5/2/2014')
insert into TestDate values (1,'Gopu', '6/2/2014')
/*
if I execute in month July ( ie: today)
select * from TestDate where dateofjoin between 1-june-2014 and 30-june-2014
Result
5 Ravi 2014-05-02 00:00:00.000
3 Kumar 2014-05-14 00:00:00.000
if I execute in month June
select * from TestDate where dateofjoin between 1-may-2014 and 30-may-2014
Result
6Gopu2014-06-02 00:00:00.000
2Britto2014-06-12 00:00:00.000
4Selva2014-06-27 00:00:00.000
/*
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Nov 18, 2015
There are two tables testmaster and testdetail. If the value of Price for a particular ID in testdetail is more than the threshold value defined in testmaster, the output should have a new column with value as 'High Value', if the value is less than the threshold the new output should be 'Low Value' other wise 'Ignore'
Example: for ID=3, threshold is defined as 40% in testmaster table, but on 11/12/2015 the new price is 100 which 100% more than the previous value, so the status is High Value as shown below.
ID Date
Price Status
1 11/12/2015 100 Low Value
2 11/12/2015 160 Ignore
3 11/12/2015 100 High Value
create table testmaster
(
ID int,
Threshold int
)
create table testdetail
(
ID int,
Date varchar(20),
Price float
)
[Code] ...
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Jun 16, 2015
I am looking to pull all records for current & previous calendar year in one query. I know how to pull the current calendar year, but how would I pull current & previous?
select id, list_date
from tableA
where list_date > DATEADD(year,-1,GETDATE())
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Apr 11, 2014
I am trying to code a rule at the moment which sets a value based on the value of the previous row. This is as far as I have got so far. I am trying to run it as a set based command and I believe I may need to make use of a numbers table.
Anyway the code is....
declare @data table
(ID int identity(1,1),
DeviceID int,
EventTypeID int,
EventID int)
[Code] ....
So the output is currently incorrect. Each DeviceID needs to have a ID assigned to the MIN(ID) which isn't yet in the code above. This ID has to be sequential across the full table and not dependent on ID.
Next the rule is coded in the case statement above.
So for each DeviceID, when the EventType goes from 1, 2 or 4, to 0 or 3, the following record after the 0 or 3 will have a new EventID. And conversely when the EventType goes from 0 or 3 to 1,2, or 4, the record that is the 1, 2 or 4 will have a new EventID.
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Sep 16, 2014
I need to compare the next row with the previous row of same table and produce nonidentical column.for eg... say my table has
Row 1 => 1001 Abhas 120 150 180
Row 2 => 1001 Abhas 150 150 180
then my output would be as below:
StudId Name fee1 fee2 fee3
1001 120
1001 Abhas 150 150 150
i.e in first row of resultset, i want to show only those values which are changed alongwith studID and next row should display all values.
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Oct 20, 2014
I am having a table which contains data of students like:
StudentID,StudentName,Term,RESult.
Sample data :
StudentID,StudentName,Term,RESult.
1,ABC,Term1,Pass
1,ABC,Term2,Fail
1,ABC,Term3,Pass
1,ABC,Term4,Pass
1,ABC,Term5,Pass
Now i want to compare Result and dislay prevterm where student fail:
Now my output would be as: Now I want to compare latest term i.e. Term5 with prev Terms and if found Mismatch in result then i want to display as below:
studentID PrevFailTerm, CurrentTerm
1,Term2,Term5
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Aug 22, 2014
How do I get first day of last month of previous quarter from today's date? I know my question is little confusing. I need to get 06/01/2014 using t-sql.
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Nov 4, 2015
I want to find previous date from selected date. below is the sample data.
DECLARE @StartDate SMALLDATETIME = '1/11/2016'
declare @tempdat table(repdate smalldatetime)
insert into @tempdat values ('10/26/2015')
insert into @tempdat values ('10/29/2015')
insert into @tempdat values ('11/1/2015')
insert into @tempdat values ('11/27/2015')
insert into @tempdat values ('11/25/2015')
insert into @tempdat values ('11/20/2015')
insert into @tempdat values ('11/10/2015')
insert into @tempdat values ('11/10/2015')
insert into @tempdat values ('11/11/2015')
insert into @tempdat values ('11/11/2015')
Now if i pass the date '10/26/2015' then i want select prev date of passed date. in this example no prev date is available, so result set would be nothing.
if i pass the date '11/10/2015' then result should be '11/1/2015' which is prev small date available in table.
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Mar 4, 2014
How can I calculate and return the previous Date at 18:00 Hours?
Here is a miserable attempt:
DECLARE @RunDate SmallDateTime
DECLARE @CurrentDate SmallDateTime
DECLARE @RunDateWoTime SmallDateTime
SET @CurrentDate = GETDATE()
SET @RunDate = DATEADD(day,-1,@CurrentDate)-- AS CurrentDate
SELECT @RunDate AS RunDate
-- Desired Result is the following:
-- 2014-03-03 18:00
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Sep 29, 2014
I am working in sqlserver 2008 R2 and below is my sample research query. I am trying to get previous 6 months data.
WITH CutomMonths
AS (
SELECT UPPER(convert(VARCHAR(3), datename(month, DATEADD(MM, DATEDIFF(MM, 0, GETDATE()) - N, 0)))) Month
,DATEADD(MM, DATEDIFF(MM, 0, GETDATE()) - N, 0) startdate
,DATEADD(MM, DATEDIFF(MM, 0, GETDATE()) - N + 1, 0) enddate
FROM (
VALUES (1)
[Code] ...
Current output what i am getting:
Expected Output:
I found why the April month i didn't get the $20 because the startdate of my perks CTE '2014-04-03'. If it is '2014-04-01' then i will get the expected output.
But i should not change the the date on perks. How to neglect this date issue and consider the month instead to get the expected output.
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Mar 25, 2014
I'm trying to write some T-SQL to return the previous even numbered month and appropriate year from given date.
Examples given:
03-25-2014 should return 02-xx-2014
01-01-2014 should return 12-xx-2013
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Mar 16, 2015
I've SSRS sales report to which I need to pass the dates for previous month's start date and end date which I am able to pass using below code. However, since the sales report has data from the past year(2014) I need to pass the dates for last year as well. The below code gives StartDate1 as 2015-02-01 and EndDate1 as 2015-02-28. I need to get the dates for past year like 2014-02-01 as StartDate2 and 2014-02-28 as EndDate2
SELECT DATEADD(MONTH, DATEDIFF(MONTH, '19000201', GETDATE()), '19000101') AS StartDate1,
DATEADD(MONTH, DATEDIFF(MONTH, '19000101', GETDATE()), '18991231') AS EndDate1
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Jan 14, 2015
My goal is to update the "PriorInsert" field with the "DateInserted" from the previously inserted record where the WorkOrder, MachineNo, and Operator are all in the same group.
While trying to get to the correct previous record, I wrote the query below.
P.S. The attached .txt file includes a create and insert tbl_tmp sampling.
select top 1
a.ID,
a.WorkOrder,
a.MachineNo,
a.Operator,
a.PriorInsert,
[code]...
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May 15, 2008
Hi,
I need your help for my SQL query. I have a table like this
ClmA ClmB ClmType
------+------+----------
1 | 10 | 0
2 | 20 | 0
3 | 30 | 1
4 | 40 | 0
5 | 50 | 1
And its the result that i want to get.
ClmA ClmB ClmType ClmResult
------+------+---------+-------
1 | 10 | 0 | 10
2 | 20 | 0 | 30
3 | 30 | 1 | 30
4 | 40 | 0 | 70
5 | 50 | 1 | 80
Let me explain. When retrieving a row, an extra column should be added.It's value should be the sum of previous rows whose type is the same with the encountered one. I made it with a function but it's performance was terible with large tables. I have tables larger then fifty housands rows.
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Mar 6, 2014
I have a snapshot table of about 15 million records in the form of:
InvoiceIDLineItemIDSnapshotDateAmount
1 1 20140101 12
1 2 20140102 14
1 3 20140103 17
2 1 20140101 10
2 2 20140102 5
1 2 20140105 15
1 3 20140105 20
I want to create an additional column called Current as shown below:
InvoiceIDLineItemIDSnapshotDateAmount Current
1 1 20140101 12 1
1 2 20140102 14 0
1 3 20140103 17 0
2 1 20140101 10 1
2 2 20140102 5 1
1 2 20140105 15 1
1 3 20140105 20 1
How can we write a query to achieve this while keeping in mind:
- We do not want to do unnecessary record lookups and Updates
- We only update records that corresponds to new entries. For example, we should not touch the record for InvoiceID = 2 in the above example
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Jan 14, 2015
I have a query that will go into an ssis package (eventually). The package will run every night at 3am. I need to capture the last 24 hours of by using something like:
SELECT worktype, changedate, woclass
where siteid = 'GTM' and woclass = 'WORKORDER' and istask = 0
[highlight=#ffff11]and changedate between '2015-01-13 03:00:00' and '2015-01-14 03:00:00'[/highlight]
I know I am not doing the between correctly to get the changedate between the last 24 hours. Is there a way to correct this so that I am only getting the change date that is between 3am today and 3am yesterday on any given day I happen to run this?
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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.
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 orders
The chart needs two series:
Previous Week. The running count of orders placed that week.
Current Week. The running count of orders placed this week.
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.
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.
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:
- [URL] ...
- [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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Mar 15, 2006
Hi,In oracle I have a LAG function using which I could get the previousvalue of a field.Do we have anything similar to that in SQL Server or access?ThanksDevi
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Jan 23, 2007
Wow, this board has gotten really busy lately - maybe 2007 is the year that a lot more people start using SSIS :)
Anyway my question is this: If I have an ordered set of data in the data flow and I want to add a column, lets just say "previousID" that basically has the ID value of a column from the row immediately before it - what is the most effecient way of doing that?
I've done much more complicated things with running averages, mean, etc by creating an asynchronous script transformation, pushing the data into a datatable in memory and looping through row by row using variables etc to do the calcs... but I just have this feeling that there is a "lighter, faster, easier" way for just getting previous row's value (with some special rows like first row has a null etc) than looping through a datatable row by row.
Can you push the buffer into an array (if so anyone have an example script) and use simple "n-1" logic? (ie using the array index)
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Aug 26, 2006
I'm guessing this is a fairly straight forward need, but want to make sure I am using the correct set of tasks:
In the dataflow, some values I need to carry forward from the previous row, such as a balance that I need to carry forward for the current customer record. This is similar to a running total, only I am not summing anything, but just carrying over from the previous records value (assuming dataset is sorted correctly, first by customer #, then by date).
Do I need the Dervied Column transform, and use a variable to store the previous value, or is there another transform that would be better suited?
Thanks
Kory
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May 9, 2008
How to write Stored Procedure to convert All seconds to Minutes AND finding average.
Ex:
My Table1:
SYMBOL TIME PRICE
EUR A0-FX 2008-05-09 11:37:31.203 1.54035
EUR A0-FX 2008-05-09 11:37:30.030 1.54034
EUR A0-FX 2008-05-09 11:37:28.860 1.54033
EUR A0-FX 2008-05-09 11:37:41.673 1.54032
EUR A0-FX 2008-05-09 11:37:59.720 1.54031
EUR A0-FX 2008-05-09 11:38:09.000 1.54033
EUR A0-FX 2008-05-09 11:38:35.877 1.54032
EUR A0-FX 2008-05-09 11:38:59.767 1.54041
OutPut:
SYMBOL TIME PRICE
EUR A0-FX 11:37 1.54031
EUR A0-FX 11:38 1.54041
I know this how to write ..
;WITH cte
AS
(
SELECT
SYMBOL,
[Time],
Price,
ROW_NUMBER() OVER(PARTITION BY CONVERT(CHAR(5), CAST(Time AS DATETIME), 114) ORDER BY CAST(Time AS DATETIME) ASC) AS rn_1,
ROW_NUMBER() OVER(PARTITION BY CONVERT(CHAR(5), CAST(Time AS DATETIME), 114) ORDER BY CAST(Time AS DATETIME) DESC) AS rn_2
FROM
Table1 WHERE SYMBOL='EUR A0-FX'
)
SELECT SYMBOL='EUR A0-FX',CONVERT(CHAR(5), CAST(Time AS DATETIME), 114) AS [Time],MAX(CASE WHEN rn_2 = 1 THEN Price ELSE NULL END) AS [Close] FROM cte
GROUP BY
CONVERT(CHAR(5), CAST(Time AS DATETIME), 114)
ORDER BY
CAST(CONVERT(CHAR(5), CAST(Time AS DATETIME), 114) AS DATETIME);
But I want to add some additional code in my procedure like AVERAGE of Previous 5 Price Values.
Ex:
SYMBOL TIME PRICE
EUR A0-FX 11:37 1.54031 ß1
EUR A0-FX 11:38 1.54041 ß2
EUR A0-FX 11:39 1.54021 ß3
EUR A0-FX 11:40 1.54081 ß4
EUR A0-FX 11:41 1.54071 ß5 Previous 5 Average PRICE Values.
(1.54061)
EUR A0-FX 11:42 1.54091 ß6
EUR A0-FX 11:43 1.54021 ß7
EUR A0-FX 11:44 1.54081 ß8
My Final
Out Put:
SYMBOL TIME PRICE AVERAGE
EUR A0-FX 11:42 1.54091 ß6 (1.54061)
EUR A0-FX 11:43 1.54021 ß7 (1.54091)
EUR A0-FX 11:44 1.54081 ß8 (1.54071)
At 11.42 time average is 1-5 price values
At 11.43 time average is 2-6 price values
At 11.44 time average is 3-7 price values
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Apr 16, 2014
How to count the number of values that exist in a row based on the values from an array of numbers. Basically the the array of numbers I want to look for are in row 1 of table [test 1] and I want to search for them and count the "out of" in table [test 2]. Excuse me for not using the easiest way to convey my question below. I guess in short I have 10 numbers and like to find how many of those numbers exist in each row. short example:
Table Name: test1
Columns: m1 (int), m2 (int), m3 (int) >>> etc
Array/Row1: 1 2 3 4 5 6 7 8 9 10
------
Table Name: test2
Columns: n1 (int), n2 (int), n3 (int), n4 (int), n5 (int)
Row 1: 3, 8, 18, 77, 12
Row 2: 1, 4, 5, 7,18, 21
Row 3: 2, 4, 6, 8, 10
Answer: 2 out of 5
Answer: 4 out of 5
Answer: 5 out of 5
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