T-SQL (SS2K8) :: Average Number Of Days Between Orders
Apr 7, 2015
I need to calculate the average number of days between customer orders.
My table has customer number and order number and the order date.
I would like to end with customer number last, order date and the average number of days between orders for each customer.
cust_idorder_numorder_date
HOLLGCAB 119482 02/27/2015
JILCO 119484 02/27/2015
KEY 119491 02/27/2015
TURNER 119496 02/27/2015
KEY 119499 02/27/2015
[Code] .....
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Nov 5, 2013
SQL 2012
I'm wanting to get the average number of days between orders in my orders tbl - so I've done a search and found the following sql coded that I have modified for my db tbl's and columns. But when I try and parse it - I get 'Incorrect syntax new the keyword Group' - what am I missing.
SELECT custId, AVG(invDate - priorDate)
FROM(SELECT custId,invDate,LAG(invDate) OVER (PARTITION BY custId ORDER BY invDate)as priorDate
FROM orders)
Group BY custId
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Jan 16, 2014
How to calculate the overall average number of days taken to complete something.
The two fields are enquiry_date (date enquiry is recorded) and complete_date (date enquiry completed/closed).
Each enquiry has a enquiry_number
Sample data typically looks like:
Enquiry number - enquiry_time - complete date
1 - 01/01/2014 - 12/01/2014
2 - 01/01/2014 - 11/01/2014
3 - 01/01/2014 - 10/01/2014
4 - 01/01/2014 - 07/01/2014
5 - 01/01/2014 - 12/01/2014
6 - 01/01/2014 - 04/01/2014
etc.
What is the piece of SQL which looks at the average date difference for each enquiry and then sums it all up to give an overall average number of days it takes?
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Sep 15, 2014
--From the rows I want to know how many number of days a person was active for the given date range.
create table [dbo].[personstatus]
(
id int identity(1,1),
name varchar(100),
DateAdded date,
InactivationDate date ) ;
insert into [dbo].[personstatus] values
[Code] ....
--The output I am looking for.
/*
1) FromDt = '2014-01-01' ToDt ='2014-01-30'
KRISS = 7
VDENTI = 7 days
2) FromDt = '2013-01-01' ToDt ='2014-01-01'
KRISS = 1
VDENTI = 1 days
3) FromDt = '2013-01-01' ToDt ='2014-01-01'
KRISS = 0
VDENTI = 1 days
4) FromDt = '2013-01-01' ToDt ='2014-12-31'
KRISS = 8+24+8+21 = 61 Days
VDENTI = 31+24+31+30 = 116 Days
*/
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Aug 27, 2014
I have an Orders table which has the following fields:
OrderID (PK, int, auto increment, not null)
CustomerID (FK, int, null)
PaymentDate (datetime, null)
UserID (uniqueidentifier)
(and other irrelevant fields)
Basically, for a specific PaymentDate range (29th July 2014 - 26th August 2014, inclusive) I want to select all orders where they only appear once in the orders table based on the CustomerID, so I only want to know about them if they have a paid order (decided by PaymentDate not being null) in that date range, but also taking into account if they have ever had a paid order outside of that date range. I'll also be joining on to the aspnet_Users table to get the username assigned to that order.
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Mar 12, 2015
I have a requirement to calculate the % change in the number of orders received today with the number of orders that were received 3 days back. All data is in the same table. There is a received date column.
I have two count(*) queries - one for today and one for 3 days back running separately and getting the results. Is it possible I can get the % change in orders received from 3 days back and today in one query.Also if I want to get the number of orders received today between 12:00am today and current time. How would I modify the query.
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May 5, 2015
I am trying to create a script file that will get me the total number of orders in july. How exactly would i say july because i know my syntax is wrong and I would be using sum instead of count right?
What i tried
use Cis11101_Northwind
Declare @Julycount int
Set @Julycount= (Select sum(*) From orders Where OrderDate = 'july')
print 'The total orders for july is ' + Cast(@JulyCount as varchar)
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Jul 15, 2014
I need to write down a sql query wherein in one particular day(user will enter manually), i need to find out a 15 minutes slot wherein purchase order's created or updated are the highest.
i.e. out of 96 slots(15 minute slot each)-I need to find the slot which has maximum number of Purchase orders created or updated.
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Jun 22, 2015
I have got this matrix and I am trying to calculate the average amount of working days in a month. At the moment, I have divided the total number of jobs by 21 for every month which is a hard coded value. However, I am not sure how to retrieve this value dynamically. Is there any formula that can find out the working days?
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Jul 4, 2014
How to calculate Average sal foe below scenario.
I am having tables with 12 columns as jan,feb,.......dec.
Now I want to calculate average salary for each record, but condition is that if any month salary is zero then that column also exclude from average calculation.
For example : if jan and feb column values are zero then i want to calculate (mar+apr+...+dec)/10.
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Mar 9, 2015
I have a need to create a line graph report in SSRS 2008. The report should show the top 10 servers from a group of servers with the highest CPU utilization for the last day. The report is for Microsoft System Center Operations Manager 2012. I have a SQL query that will return the average CPU for all of the servers in the group, with the average for each hour (24 records per server).
How can I get the top 10 servers with the highest average CPU? I think I need to create an average of the averages, then select the top 10. Here is the SQL query I have so far:
Use OperationsManagerDW
GO
SELECT
vPerf.DateTime,
vPerf.SampleCount,
cast(vPerf.AverageValue as numeric(10,2)) as AverageCPU,
vPerformanceRuleInstance.InstanceName,
[code]....
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Jul 12, 2013
How do you get the average number in sql?
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Oct 7, 2015
I have a dataset as such:
Student TestTypeDate TestCnt
111-22-1111English2015-09-01 10:00:00 1
111-22-1111Math2015-09-02 11:00:00 2
111-22-1111Geo2015-09-03 12:00:00 3
222-11-2222English2015-09-01 10:00:00 1
333-22-1111English2015-09-01 10:00:00 1
[Code] ...
So some have just 1 test and some have multiple. I have a count for each. What I need to do is use that count and get an average time between each test per student.
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Dec 3, 2013
I am calculating the average number of patients per day as like this
COUNT(DISTINCT PATIENTNAME) * 1.0/NullIf(COUNT(DISTINCT COALESCE(ARRIVEDATE,DEPARTDATE)),0) AS [AvgNo.ofpatients PerDay]
but i am getting results as like this 5.111111111111 , 8.000000000000,1.000000000000
we don't want to get that many digits after point we want only two digits like this 5.11,8.00 or 8, 1.00 or 1.
How can i do this?
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Mar 30, 2015
how to return the 3 month rolling average count per username? This means, that if jan = 4, feb = 5, mar = 5, then 3 month rolling average will be 7 in April. And if apr = 6, the May rolling average will be 8.
Columns are four:
username, current_tenure, move_in_date, and count.
DDL (create script generated by SSMS from sample table I created, which is why the move_in_date is in hex form. When run it's converted to date. Total size of table 22 rows, 4 columns.)
CREATE TABLE [dbo].[countHistory](
[username] [varchar](50) NULL,
[current_tenure] [int] NULL,
[move_in_date] [smalldatetime] NULL,
[Cnt_Lead_id] [int] NULL
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
[code]....
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Feb 20, 2012
I am trying to find out the the Average number of contact hours per student. in Reporting Services 2005. The contact hours is the in the Totaltime field
Is this formula correct
=Sum(Fields!TotalTime.Value)/Avg(Fields!TotalTime.Value) is in the =Fields!StateServices.Value Group
My groups are
=Fields!Student_ID.Value
=Fields!StateCategory.Value
=Fields!StateServices.Value
Code:
SELECT Student_ind.[Student ID], ParticipantActivity.ActivityDate, School_tbl.[Studentschool Id], School_tbl.schoolID, ParticipantActivity.TotalTime,
ParticipantActivity.Services, ParticipantActivity.Activity, Student_ind.SSID, ParticipantActivity.StateCategory, ParticipantActivity.StateServices
FROM ParticipantActivity INNER JOIN
School_tbl INNER JOIN
Student_ind ON School_tbl.[Student ID] = Student_ind.[Student ID] ON ParticipantActivity.[Student ID] = Student_ind.[Student ID]
[code]....
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Sep 12, 2006
Example table structure:
Id int, PK
Name varchar
AddDate smalldatetime
Sample data:
Id Name AddDate
1 John 01/15/2005
2 Jane 01/18/2005
.
.
.
101 Jack 01/10/2006
102 Mary 02/20/2006
First, I need to find the month which has the most records, I finally produced the correct results using this query but I am not convinced it's the most efficient way, can anyone offer a comment or advice here?
select top 1 count(id), datename(mm, AddDate) mth, datepart(yy, AddDate) yr
from dbo.sampletable
group by datename(mm, AddDate), datepart(yy, AddDate)
order by count(id) desc
Also, I'm really having trouble trying to get the overall average of records per month. Can anyone suggest a query which will produce only one number as output?
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Nov 24, 2013
I have this table of Marks as shown below. All I need is to find the average Marks at various intervals of S.no. That is I need averages at every 3rd S.No. as shown.
S.No. Marks
1 ------ 5
2 ------ 5
3 ------ 6 1st Average Value here (16/3)
4 ------ 5
5 ------ 6
6 ------ 7 2nd Average Value here (18/3)
7 ------ 7
8 ------ 7
9 ------ 8 3rd Average Value here (22/3)
10 ----- 8
11 ----- 9
12 ----- 8 4th Average Value here (26/3)
So basically I need a new table which will have 4 average values for the table above. Of-course the table can be much bigger and the average values can be at any nth value of S.No.
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Mar 26, 2014
The following query was used for retrieving dates for the last 7 days . Untill February this query was running fine and would return the last seven days date including today.
SELECT DISTINCT TOP 7 Convert(DateTime, DATEDIFF(DAY, 0, DateCreated)) AS DateCreated,
datepart(dw,DateCreated) AS WeekNum from [TechnologyRepository].[helpdsk].[WorkDetails]
WHERE DATEDIFF(DAY, Convert(DateTime, DATEDIFF(DAY, 0, DateCreated)),GETDATE()) <= 7
However from March (not sure of the exact date)..the query below would only give us 7 days until yesterday..i.e it would list dates from 3/19,3/20,3/21,3/22,3/23,3/24,3/25 and not 3/26 ..
I changed the query to <= 6 and it works as expected. But still not sure why it would not return todays date with <= 7.
SELECT DISTINCT TOP 7 Convert(DateTime, DATEDIFF(DAY, 0, DateCreated)) AS DateCreated,
datepart(dw,DateCreated) AS WeekNum from [TechnologyRepository].[helpdsk].[WorkDetails]
WHERE DATEDIFF(DAY, Convert(DateTime, DATEDIFF(DAY, 0, DateCreated)),GETDATE()) <= 6
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Apr 16, 2008
How would I do a date range from the first day of this year to the getdate(), and so it will change once the new year hits as well?
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Jan 21, 2015
I have to download the files from SFTP server, for which i am using WINSCP and i am able to successfully automate the process to download the files. But it is downloading all the files instead of only current day's files. Ihave searched for WINSCP documentation for time query parameter to pass to the get command. But its not working.
My source file name contains Datefield as "Filenameexample_150120_N001.txt".
Here 150120 mean Jan 20 2015.
Winscp has no functionality to query the files to parse using datefield. how to look for files which are from today's date.
Currently i am downloading files which contain *.* (meaning all files).
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Oct 30, 2006
i have id, start_date, end_date
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Mar 22, 2001
Is there any easy way to calulate number of business days between the 2 dates ?
I want to exclude all sat and sun between the 2 dates.
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Aug 28, 2004
I need to add days to a date field, my date field is as varchar(20041030 for example) and I need to add 4 days to it, my result should be 20041103, result field is also in varchar,how would I do that, can anyone pls help?
thx in advance!!
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Feb 27, 2005
select a.RelocateID,a.DateEntered,a.CompanyID,b.FileClose dDate from test1 a inner join test b on
(a.RelocateID = b.RelocateID) where
CompanyID ='5710' and DateEntered >= '01/01/2004' and convert(varchar,FileClosedDate,101) < '31/12/2004'
Hi I was wondering if somebody could help me alter this query so I an calulate the difference in days in between DateEntered and FileClosedDate having the above criteria.
I can't seem to be able to get the datediff function right in this particular example
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Jan 30, 2008
I have a Hospital Utilization Report and my Client wants me to calculate the number of days.
Example
Date of Services from 1/1/08 - Date of Service Thru 01-05-2008. Which the total will be 5 days.
How would I calculate that?
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Feb 4, 2015
We are running sql 2008 R2. We have the JE_DATE field set up as an int. We are trying to subtract 30 days from this date field.
select * from GENERAL_LEDGER
where JE_DATE >= DATEADD(DAY,-30,GETDATE())
In addition to the where clause above we have also tried
where JE_DATE >= DATEADD(dd,-30,GETDATE())
For both we get the following error "Arithmetic overflow error converting expression to data type datetime."
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May 3, 2015
ID A B C AVG
------------------------
1 08 09 10 -
------------------------
2 10 25 26 -
------------------------
3 09 15 16 -
------------------------
I want to calculate the average of the larges two number from the column A,B & C for particular identity and store that average in the AVG column....
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May 22, 2007
Hiwhen inserting records into a table one of the fields is a date field. I am using the GETDATE() function to insert the date as the record is being inserted.when i retrieve an entire record from the table i want to be able to select this date, but also to get the number of days it has been since that record was inserted.eg: 3 daysif the record was inserted less than one day ago (<24 hrs ago) i would like it to return the number of hours. e.g. 22 hrsi dont want hours to be displayed if the days is >= 1.please can anyone guide me with this?thanks!
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Apr 17, 2008
Hello,
I have a table with 3 columns: Item# | Date | ItemAmount.
Everyday there is a number of transactions entered. An Item# can only be entered once par day (if it has occurred that day).
What I want to do is to :
retrieve the number of total days where an Item has been entered for more than 2 consecutive days (for the month).
Example: if item I022 has been entered Monday and wed, then ignore, but if it's been entered Mon, Tues then return 2, if Mon, Tues, Wed then return 3 because the days are consecutive.
Does anyone have an idea.
thanks in advance,
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Apr 17, 2007
I have a table like this (a small section of the table)
Cu_id |Tr_id |Date
1234 |1 |12/3/2006
1234 |2 |12/18/2006
1234 |3 |1/5/2007
1234 |4 |1/9/2007
1234 |5 |2/21/2007
9999 |91 | 1/3/2006
9999 |81 |1/10/2006
9999 |71 |1/18/2007
9999 |61 |2/1/2007
I have to find the number of days between the dates for the same cu_id and add the number as a new column. The new table should look like this.
Cu_id |Tr_id |Date| Days_between
1234 |1 |12/3/2006 |0
1234 |2 |12/18/2006 |15
1234 |3 |1/5/2007 |18
1234 |4 |1/9/2007 |4
1234 |5 |2/21/2007 | 43
9999 |91 |1/3/2006 |0
9999 |81 |1/10/2006 |7
9999 |71 |1/18/2007 |8
9999 |61 |2/1/2007 |14
Please let me know how I can find the number of days between two dates in the same column for the same cu_id (customer_id).
Thanks
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Apr 11, 2008
I have a query that counts the number of pay checks received in a month, but I need to compare that to the number of actual paydays in a month. If we were on a set pay schedule (i.e. the 15th of each month) it would be easy. Unfortunately that's not the case. We are paid biweekly on Fridays and our last pay day was April 4th.
So I need to know how many pay periods were in a specified month. For example, April would have 2 (April 4th and 18th), May would have 3 (May 2nd, 16th, and 30th), etc.
As always, your help is very much appreciated!
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Sep 30, 2014
What would be the most straight forword to Calculate 90 days and 3 Years ago from an Effective Date in a table?
as in
SELECT EffectiveDate
from FL.CEFHistory
I need to return the effective date - 90 days and 1 year from that.
[URL]
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