troubleshooting Question

Find Difference between Start and End timestamps

Avatar of esotericmee
esotericmee asked on
Microsoft SQL Server 2008
3 Comments1 Solution798 ViewsLast Modified:
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

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