Solved

Find Difference between Start and End timestamps

Posted on 2010-11-09
3
775 Views
Last Modified: 2012-05-10
Hi I have a table which has start and end time timestamp columns. The table has entries for files and the start and end times for them. These are basically the load times for that file into a table.
I want to find the time between the loading of 2 files.

Let me explain

eg
 Col1   StartTime                                     Endtime
     1    2010-11-09 20:12:22.503          2010-11-09 20:12:22.800
     2    2010-11-09 20:12:27.923      2010-11-09 20:12:28.203
     3     2010-11-09 20:12:33.350      2010-11-09 20:12:33.617
     4     2010-11-09 20:12:38.580           2010-11-09 20:12:38.863
     5    2010-11-09 20:12:43.890      2010-11-09 20:12:44.170


I want to write a query that will give me time difference between

start time of 2 and endtime of 1
start time of 3 and endtime of 2
start time of 4 and endtime of 3  
and so on

the difference will be very small..

So the time between completion of 1st file and start of loading of 2nd file is in this case
   2010-11-09 20:12:27.923  
 - 2010-11-09 20:12:22.800

= 00:00:00.123 sec   (923-800    only the milisec part in this case )

Similarly I want to find time between loading for all the files



I have a column "duration" that gives me difference between the start and endtime of the same row.
Now I want to find out the time lapse between the end of row1 and start of row2 and so on for all the rows.


All the help is greatly appreciated

Thanks

0
Comment
Question by:esotericmee
  • 2
3 Comments
 
LVL 37

Accepted Solution

by:
TommySzalapski earned 250 total points
ID: 34099484
Let's say the table is called 'Times'
Unfortunately there is no 'next_record' operator, but you could do something like this.

SELECT datediff(ms, A.EndTime, B.StartTime) AS TimeDiff
FROM Times A INNER JOIN Times B ON A.Col1 + 1 = B.Col1
0
 
LVL 37

Expert Comment

by:TommySzalapski
ID: 34099491
If Col1 isn't reliable then do it like
SELECT datediff(ms, A.EndTime, (SELECT min(StartTime) FROM Times B WHERE B.StartTime > A.StartTime) AS TimeDiff
FROM Times A
0
 

Author Comment

by:esotericmee
ID: 34128527
That helped..Thanks a lot...I appreciate it
0

Featured Post

NEW Veeam Agent for Microsoft Windows

Backup and recover physical and cloud-based servers and workstations, as well as endpoint devices that belong to remote users. Avoid downtime and data loss quickly and easily for Windows-based physical or public cloud-based workloads!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
SQL Server 2012 r2 - Sum totals 2 31
While in ##Table - Help 4 22
SQL Select Query help 1 34
the way to learn Microsoft BI 13 44
In this article I will describe the Copy Database Wizard method as one possible migration process and I will add the extra tasks needed for an upgrade when and where is applied so it will cover all.
This article explains how to reset the password of the sa account on a Microsoft SQL Server.  The steps in this article work in SQL 2005, 2008, 2008 R2, 2012, 2014 and 2016.
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…

740 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question