Comparing Data In Two Consecutive Rows From A Single Table
Jul 20, 2005
I'm trying to come up with an elegant, simple way to compare two
consecutive values from the same table.
For instance:
SELECT TOP 2 datavalues FROM myTable ORDER BY timestamp DESC
That gives me the two latest values. I want to test the rate of
change of these values. If the top row is a 50% increase over the row
below it, I'll execute some special logic.
What are my options? The only ways I can think of doing this are
pretty ugly. Any help is very much appreciated. Thanks!
B.
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Feb 21, 2013
SQL Server 2008.
From individual event logs I have generated a table where arrivals and departures at a location are registered per device. As there are multiple registration points, there might be multiple consecutive registrations per location.
If this is the case I need to filter those out and have one registration per location and in the result I need to get the earliest arrival and the latest departure of these consecutive rows.
Part of the table:
logIDdeviceIDArrivedDepartedLocationIDGrp1Grp2Grp
3485441082013-02-07 17:51:05.0002013-02-07 17:51:15.0005110
3492041082013-02-07 17:51:15.0002013-02-07 17:51:26.0005220
3500241082013-02-07 17:51:27.0002013-02-07 17:51:37.0003312
3508941082013-02-07 17:51:41.0002013-02-07 17:51:54.0004413
[Code] ....
So as long the field LocationID is the same in the next row, it needs to be grouped.
I have added the rows Grp1, Grp2, Grp in an attempt to get an unique grouping number with the following script in the select statement:
,ROW_NUMBER() OVER(PARTITION BY DeviceID
ORDER BY logID) AS Grp1
,ROW_NUMBER() OVER(PARTITION BY DeviceID, LocationID
ORDER BY logID) AS Grp2
,ROW_NUMBER() OVER(PARTITION BY DeviceID
ORDER BY logID)
-
ROW_NUMBER() OVER(PARTITION BY DeviceID, LocationID
ORDER BY logID) AS Grp
By subtracting Grp2 from Grp1 (Grp = Grp1 - Grp2) I hoped to get an unique group number for each set of equal consecutive locations, however the Grp2 column does not restart from 1 each time the LocationID changes: Grp2 in line 7 should have been 1 again, but it is 2 because this is the second row with LocationID = 3 in the list.
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Jun 2, 2015
I'm trying to avoid a large amount of manual data manipulation.
Here's the background: Legacy system that has (well let's call apples apples) pretty much no method of enforcing data integrity, which has caused a fairly decent amount of garbage data to be inserted in some tables. Pulling one of the [Individuals] table from within this Legacy system and inserting it into a production system, into the Table schema currently in place to track [Individuals] in this Production system.
Problem: Inserting the information is easy, how to deduplicate the records that exist within the staging table that the legacy [Individuals] table has been dumped into in production, prior to insertion. (Wanting to do this programmatically with SQL or SSIS preferably, so that I can alter it later to allow for updating existing/inserting new)
Staging Table Schema:
;
CREATE TABLE [dbo].[stage_Individuals](
[SysID] [int] NULL, --Unique, though it's not an index intended to identify the [Individuals]
[JJISID] [nvarchar](10) NULL,
[NameLast] [nvarchar](30) NULL,
[NameFirst] [nvarchar](30) NULL,
[NameMiddle] [nvarchar](30) NULL,
[code]....
Scenario: There are records that duplicate the JJISID, though this value is supposed to be unique for every individual. The SYSID is just a Clustered Index (I'm assuming) within the Legacy system and will be most likely dropped when inserted into the Production [Inviduals] table. There are records that are missing their JJISID, though this isn't supposed to happen either, but have valid information within SSN/DOB/Name/etc that can be merged into the correct record that has a JJISID assigned. There is really no data conformity, some records have NULLS for everything except JJISID, or some records will have all the [Individuals] information excluding the JJISID.
Currently I am running the following SQL just to get a list of the records that have a duplicate JJISID (I have other's that partition by Name/DOB/etc and will adapt whatever I come up with to be used for those as well):
;
select j.*
from (select ROW_NUMBER() OVER (PARTITION BY JJISID ORDER BY JJISID) as RowNum, stage_Individuals.*, COUNT(*) OVER (partition by jjisid) as cnt from stage_Individuals) as j
where cnt > 1 and j.JJISID is not nullNow, with SQL Server 2012 or later I could use LAG and LEAD w/ the RowNum value to do my data manipulation...but that won't work because we are on SQL Server 2008 in this environment.
[URL]
With, the following as a potential solution:
GSquared (3/16/2010)Here's a query that seems to do what you need. Try it, let me know if it works.
Performance on it will be a problem, but I can't fine tune that. You'll need to look at various method for getting this kind of data from the table and work out which variation will be best for your data. Without access to the actual table, I can't do that.
;
WITH CTE
AS (SELECT master_id,
MIN(ID) AS first_id,
MAX(Account_Expiry) AS latest_expiry
FROM #People
GROUP BY master_id)
SELECT P1.master_id,
[code].....
Unfortunately, I don't think that will accomplish what I'm looking for - I have some records that are duplicated 6 times, and I'm wanting to keep the values within these that aren't NULL.
Basically what I'm looking for, is to update any column with a NULL value to the corresponding Duplicate [Individuals] record value for that column.
**EDIT - Example, Record 1 has a JJISID with NULL NameFirst & NameLast BUT Record 2 has the same JJISID and values for NameFirst & NameLast. I'm wanting to propogate the NameFirst & NameLast from Record2 into Record1
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May 8, 2008
I have the following variables VehicleID, TransactDate, TransactTime, OdometerReading, TransactCity, TransactState.
VehicleID is the unique vehicle ID, OdometerReading is the Odometer Reading, and the others are information related to the transaction time and location of the fuel card (similar to a credit card).
The records will be first grouped and sorted by VehicleID, TransactDate, TransactTime and OdometerReading. Then all records where the Vehicle ID and TransactDate is same for consecutive rows, AND TransactCity or TransactState are different for consecutive rows should be printed.
I also would like to add two derived variables.
1. Miles will be a derived variable that is the difference between consecutive odometer readings for the same Vehicle ID.
2. TimeDiff will be the second derived variable that will categorize the time difference for a particular vehicle on the same day.
My report should look like:
VehID TrDt TrTime TimeDiff Odometer Miles TrCity TrState
1296 1/30/2008 08:22:42 0:00:00 18301 000 Omaha NE
1296 1/30/2008 15:22:46 7:00:04 18560 259 KEARNEY NE
Can someone please help me here?
Thanks,
Romakanta
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Sep 25, 2013
create table #prints(id int IDENTITY(1,1) NOT NULL,
Printermarkersupplyid varchar(36),PrinterID varchar(10),Description varchar(10),SupplyLevel int,ModifiedDate datetime)
insert into #prints(Printermarkersupplyid,PrinterID,Description,SupplyLevel,ModifiedDate)
select newid(),'P1','D1',100,'2013-08-1 03:28:38.203'
union all
[code]....
my requirement is to get the difference between adjacent rows.ie difference between 2nd and 3rd or 6th and 7th but not 6th and 8th.if difference between 2nd and 3rd is less than zero and 3rd modified date > 2nd modified date,then i should get count as 1 against 3rd row.
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Jun 15, 2007
How do I only select rows with duplicate dates for each person (id)? (The actual table has approximately 13000 rows with approximately 3000 unique ids)
p_key id date pulse
--------------------------------------
1 32 5/25/2006 80
2 32 5/25/2006 85
3 32 4/26/2006 81
4 32 6/15/2006 82
5 15 1/20/2006 75
6 15 3/25/2006 80
7 15 3/25/2006 83
Result table I am looking for:
p_key id date pulse
------------------------------------
1 32 5/25/2006 80
2 32 5/25/2006 85
6 15 3/25/2006 80
7 15 3/25/2006 83
Thanks.
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Jul 31, 2007
Hi,
I've a bunch of records that may contain data that I'm after. For example:
This is a fake title [electronic resource]. 1997.
I have a very small table (~10 rows) of things like '[electronic resource]'
Is there any way to see if my record contains any of the 'target' items in the other table?
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Jan 8, 2008
Hello,
I have a stored procedure that inserts 5 rows into a table. The execution of the SP is inside a transaction like in the code below:
Code Block
SqlConnection conn = new SqlConnection(ConnectioString);
conn.Open();
SqlTransaction trans = conn.BeginTransaction();
try
{
// execute stored procedure... insert 5 rows
trans.Commit();
}
catch (Exception ex)
{
trans.Rollback();
}
finally
{
conn.Close();
}
Suppose that N users are executing the code, one independent of the other, in the same time and they both commit the transaction at the same time.
Can I suppose that the rows inserted in the table by one user will be consecutive?
Thanks!
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May 8, 2008
I have the following variables VehicleID, TransactDate, TransactTime, OdometerReading, TransactCity, TransactState.
VehicleID is the unique vehicle ID, OdometerReading is the Odometer Reading, and the others are information related to the transaction time and location of the fuel card (similar to a credit card).
The records will be first grouped and sorted by VehicleID, TransactDate, TransactTime and OdometerReading. Then all records where the Vehicle ID and TransactDate is same for consecutive rows, AND TransactCity or TransactState are different for consecutive rows should be printed.
I also would like to add two derived variables.
1. Miles will be a derived variable that is the difference between consecutive odometer readings for the same Vehicle ID.
2. TimeDiff will be the second derived variable that will categorize the time difference for a particular vehicle on the same day.
My report should look like:
VehID TrDt TrTime TimeDiff Odometer Miles TrCity TrState
1296 1/30/2008 08:22:42 0:00:00 18301 000 Omaha NE
1296 1/30/2008 15:22:46 7:00:04 18560 259 KEARNEY NE
Can someone please help me here?
Thanks,
Romakanta
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Oct 15, 2014
How can i calculate datediff (in minutes) between two consecutive rows without using CTE & Temp tables?
I was using this successfully, but i need something without CTE and temp tables (both of them are not supported in the tool i am trying to generate a report using custom query).
WITH CTE AS (SELECT ROW_NUMBER() OVER (ORDER BY Id desc) AS RowNo, * FROM MyTable)
SELECT t1.*, ISNULL(DATEDIFF(mi, t2.CreateDate, t1.CreateDate), 0) AS Duration
FROM CTE t1
LEFT JOIN CTE t2 ON t1.RowNo = t2.RowNo - 1
ORDER BY t1.Id desc
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May 31, 2015
I've;
Id.........|......type....|.....Value
2001................1...............20
2001................2...............32
2002................1...............19
2002................2...............21
2003................1............... 3
2003................2...............30
I want;
Id........|.......Value
2001.................12
2002..................2
2003.................27
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May 24, 2007
Hi All,
I was wondering is there any way by which i can split a single row in my table into two rows in my table in design of my report. In my table there are 16 rows i cant design table with 16 rows as it will increase size of my report body & it will give problem while exporting. Instead what i want to do is , design a table with two header rows first header with first 8 columns & second with remaining 8 columns.
The table should look like this
//column 1 2
ID NAME
AGE SEX
-----------------------------------------------------------------------------------
2 abc
10 M
-----------------------------------------------------------------
3 def
20 M
Is it possible
Thanks
-- Darshan
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Jul 2, 2015
I have a table like this.
CREATE TABLE Table1
([S_ID] varchar(7), [S_ACTV_CODE] varchar(4), [S_USER] varchar(5), [S_DATETIME] varchar(19), [S_ACT_IND] int)
;
INSERT INTO Table1
([S_ID], [S_ACTV_CODE], [S_USER], [S_DATETIME], [S_ACT_IND])
VALUES
('AAA-111', NULL, 'USER1', '2015-06-15 00:21:06', 0),
('AAA-111', '2', 'USER1', '2015-06-15 00:21:07', 0),
[code]....
Basically I want to calculate the time spent by S_Users on a particular S_ACTV_CODE:
- S_ACTV_CODE_PREV means the previous active records.
- S_START_TIME is the time of S_DATETIME when a S_ACTV_CODE starts
- S_END_TIME is the time before a S_ACTV_CODE changes to another S_ACTV_CODE
- For the first record, S_ACTV_CODE is null, so there is no S_ACTV_CODE_PREV, so S_ACTV_CODE_PREV is NULL
- For the second record S_ACTV_CODE has some value, but S_ACTV_CODE_PREV is NULL for first record. So second record S_ACTV_CODE_PREV is also NULL
- For the last record (means S_ACTV_IND = 1), the user is currently working on it and S_ACTV_CODE is not changed. So S_END_TIME is a open time and we want to keep it as NULL
So the result should be as below:
S_ID S_ACTV_CODE_PREV S_ACTV_CODE_CURR S_USER S_START_TIME
S_END_TIME TIME_SPENT (in Sec)
AAA-111 NULL NULL USER1 2015-06-15 00:21:06
2015-06-15 00:21:07 1
AAA-111 NULL 2 USER1 2015-06-15 00:21:07
2015-06-17 03:20:33 183566
AAA-111 2 4 USER2 2015-06-17 03:20:33
[code]....
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Apr 4, 2006
How can i combine my data in single row ? All data are in a single table sorted as employeeno, date
Code:
Employee No Date SALARY
1 10/30/2006 500
1 11/30/2006 1000
2 10/25/2006 800
3 10/26/2006 900
4 10/28/2006 1000
4 11/01/2006 8000
Should Appear
Code:
EmployeeNo Date1 OLDSALARY Date2 NEWSALARY
1 10/30/2006 500 11/30/2006 1000
2 10/25/2006 800
3 10/26/2006 900
4 10/28/2006 1000 11/01/2006 800
PLEASE HELP I REALLY NEED THE RIGHT QUERY FOR THIS OUTPUT.
THANKS IN ADVANCE
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Mar 14, 2008
I have a table with only one column as
Emp_Name
A
B
C
D
E
I want to display this data as
Emp_Name
A, B, C, D, E
Is this possible? I am using SQL server 2005.
Any help is appreciated.
Regards,
Vinesh
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Dec 15, 2007
DECLARE @emp VARCHAR(1024) declare @emp1 varchar(1024)declare @emp2 varchar(1024)SELECT @emp1 = COALESCE(@emp1 + ',', '') + cast(eid as varchar(10)),@emp = COALESCE(@emp + ',', '') + ename ,@emp2 = COALESCE(@emp2 + ',', '') + desigFROM emp SELECT eid=@emp1,ename = @emp,desig=@emp2
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May 14, 2004
I was wondering if anyone had a suggestion as to how to delete duplicate rows from a table. I have been doing this:
SELECT * INTO TempUsersNoRepeats
FROM TempUsers2
UNION
SELECT * FROM TempUsers3
This way I end up with a total of four tables (the fourth table being the original Users table) and I was hoping that there was a way that I could do this all within the the original Users table and not have to create the three TempUsers tables.
Thanks,
Ron
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May 24, 2007
I've been searching the forums and Google for some help splitting up rows in a table without any luck. I'm not quite sure what to even look for
I have a table is MSSQL 2000 that looks as follows:
Code:
id custnum b1_email b2_email b1_sub b2_sub
------------------------------------------------------------------------
1 123456 b1@host1.com b2@host1.com 0 0
2 654321 b1@host2.com b2@host2.com 1 0
3 321654 b1@host3.com b2@host3.com 0 1
Now... I am hoping create a view that splits these rows up so that only a single email address is on each row. I'd like to split it up as follows:
Code:
custnum email sub
----------------------------------
123456 b1@host1.com 0
123456 b2@host1.com 0
654321 b1@host2.com 1
654321 b2@host2.com 0
321654 b1@host3.com 0
321654 b2@host3.com 1
Any help would be great! I imagine some sort of join command can be constructed using a single table?
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Aug 1, 2014
I have a table named LEDGER
LEDGER has two columns named PATID and CODE
Example data:
PATID CODE
1 Z1110
1 D3330
1 Z0330
2 Z1298
2 Z0987
2 Z0330
2 D1092
I need a query that returns PATID if they have CODE Z0330 but not Z1110. I only want one PATID to return if this condition exists.
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Sep 19, 2007
Hi again,
I'd appreciate advice on the following. Thanks very much!
Given this Table:
family|product|type
fam1 |abc |XX
fam1 |def |YY
What query would return this?
Family|Type1|Type2
fam1 |xx |yy
--PhB
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Jul 20, 2005
To anyone that is able to help....What I am trying to do is this. I have two tables (Orders, andOrderDetails), and my question is on the order details. I would liketo set up a stored procedure that essentially inserts in the orderstable the mail order, and then insert multiple orderdetails within thesame transaction. I also need to do this via SQL 2000. Right now ihave "x" amount of variables for all columns in my orders tables, andall Columns in my Order Details table. I.e. @OColumn1, @OColumn2,@OColumn3, @ODColumn1, @ODColumn2, etc... I would like to create astored procedure to insert into Orders, and have that call anotherstored procedure to insert all the Order details associated with thatorder. The only way I can think of doing it is for the program to passme a string of data per column for order details, and parse the stringvia T-SQL. I would like to get away from the String format, and gowith something else. If possible I would like the application tosubmit a single value per variable multiple times. If I do it this waythough it will be running the entire SP again, and again. Anysuggestions on the best way to solve this would be greatlyappreciated. If anyone can come up with a better way feel free. Myonly requirement is that it be done in SQL.Thank you
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Sep 20, 2007
Hi,
I have 3 tables with the follwing schema
Table <Category>
{
UniqueID,
LastDate DateTime
}
Assume the follwing tables with data following the above schema
Table Cat1
{
1, D1
2, D2
3, D3
}
Table Cat2
{
2, D4
3,D5
4, D6
}
Table Cat3
{
1, D7
3,D8
5,D9
}
I have a Master and the schema is as follows
Table master
{
UniqueId,
Cat1 DateTime, -- This is same as the Table name
Cat2 DateTime, -- This is same as the Table name
Cat3 DateTime -- This is same as the Table name
}
After inserting the data from all these 3 tables, I want the my master table to look like this
Table Master
{
UniqueId cat1 cat2 Cat3
------------ --------- ------- -----------
1 D1 NULL D7
2 D2 D4 NULL
3 D3 D5 D8
4 NULL D6 NULL
5 NULL NULL D9
}
Please remember the column names will be same as that of table names
can any one pelase let me know the query t o acheive this
Thanks for your quick response
~Mohan Babu
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Oct 25, 2007
I am using SQL 2000
I am getting a syntax error when I parse this sql script:
insert into Elec_Sub_Test1
values ('10-20-2007',35),
('10-21-2007',24)
What is the correct syntax to insert mutlipe rows in a single table.
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Jul 20, 2005
I have an entry form allowing customers to enter up to 15 skus (productid) at a time, so they can make a multiple order, instead of enteringone sku, then submitting it, then returing to the form to submit thesecond one, and so forth.From time to time, the sku they enter will be wrong, or discontiued, soit will not submit an order.Therefore, when they are done submitting their 15 skus through the orderform, I want a list showing them all of those skus that came back blank,or were not found in the database.I'm doing this by creating two tables. A shopping cart, which holds allthe skus that were returned, and a holding table, that holds all theskus that were submitted. I want to then delete all the skus in theholding page that match the skus in teh cart (because they are goodskus) which will then leave the unmatched skus in the holding table.I'll then scroll out the contents of the holding table, to show them theskus that were not found in the database.(confused yet?)So what I want to do is have some sql that will delete from the holdingtable where the sku = the sku in the cart. I've tried writing this, butit dosn't work.I tiried this delete from holding_table where sku = cart.skuI was hoping this would work, but it dosn't. Is there a way for me to dothis?Thanks!Bill*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
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Nov 17, 2014
I have resulting rows from a query similar to the following:
The data is coming from a single table that contains only one coverage code column and one coverage code date, but the end user wants the two coverage code types and dates combined into a single row. So the SELECT looks something like this:
SELECT
[Employee ID] = emp.employee_id,
[Coverage Code 1] = enr.coverage_code,
[Coverage Date 1] = enr.coverage_date,
[Coverage Code 2] = case when enr.product_type = 'Accident.Accident'
then enr.coverage_code else NULL end,
[Code] ....
I basically want to merge the like Employee ID's together into a single row like the following:
I know I have done this before and it is probably pretty simple.
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Jul 16, 2015
We have control table which will be useful whether we need to start the job or not. If we are starting the Job we will make it to 1.
Below is the Table Structure.
Table Name IN_USE_FG
CUST_D 0
PROD_D 0
GEO_D 0
DATE_D 0
Now we have different packages for 4 tables data loading. These 4 packages will start at a time. Before going to load the data we have to make the Flag to 1 and after that we have to load it. Because of this we have written Update statement to update the Value to 1 in respective Package.
Now we are getting dead lock because we are using same table at a same time. Because we are updating different records.
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Aug 27, 2007
Hi all
I have a customer table with a postcode and a suburb fields and cutomer info which is manually entered by data entry people...
I am trying to compare the entries against a postcode table with the correct postcodes which have fields postcode and suburb and based on the postcode entered in the customer table it should be the same as the suburb in the postcode table, if they are not the same output them to a table for manual checking..How would I go about this
thanks
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Oct 28, 2015
I have the following results:
CustomerProductName ValueChargesNewCharges
13AZ 40005056
13BY 30023
13BX 50003536
13BW 16001312
13BV 107009392
13BU 7000109110
And would like to get my results in 1 row with the Customer then 2 columns for Products, 6 columns for Name/Value/Charges/NewCharges.
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Jan 9, 2008
Hi,
I want to load data into Excel file with following format,
Country
State
Total
Location
ABC
A
20
X1
30
Y1
C
100
XYZ
X
40
Basically I want to insert records from multiple rows into a single row; how can I achieve this using SSIS.
I am using Excel as a data source.
Any help is appreciated.
Regards,
Omkar.
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May 10, 2001
Hi,
i need to select from a table transact where one of the coulmn values has to be equal to (1and 2 and 3).
e.g: column in (1,2,3) would give me what "OR" would do,
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Feb 12, 2014
I have created a trigger that is set off every time a new item has been added to TableA.The trigger then inserts 4 rows into TableB that contains two columns (item, task type).
Each row will have the same item, but with a different task type.ie.
TableA.item, 'Planning'
TableA.item, 'Design'
TableA.item, 'Program'
TableA.item, 'Production'
How can I do this with tSQL using a single select statement?
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Nov 18, 2007
Hellow Folks.
Here is the Original Data in my single SQL 2005 Table:
Department: Sells:
1 Meat
1 Rice
1 Orange
2 Orange
2 Apple
3 Pears
The Data I would like read separated by Semi-colon:
Department: Sells:
1 Meat;Rice;Orange
2 Orange;Apple
3 Pears
I would like to read my data via SP or VStudio 2005 Page . Any help will be appreciated. Thanks..
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Feb 9, 2012
I'm trying to insert data into a table from two tables into a single table along with a hard coded value.
insert into TABLE1
(THING,PERSONORGROUP,ACCESSRIGHTS)
VALUES
((select SYSTEM_ID from TABLE2 where
AUTHOR IN (select SYSTEM_ID from TABLE2 where USER_ID
=('USER1'))),(select SYSTEM_ID from TABLE2 where USER_ID
=('USER2')),255)
I get the following-
Msg 512, Level 16, State 1, Line 1
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.
The statement has been terminated.
Do I need to use a cursor?
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