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  3. July 2001

sql comparison between records

  • Subject: sql comparison between records
  • From: Joel Fritz <JFritz@xxxxxxxxxxxxxxxx>
  • Date: Fri, 20 Jul 2001 09:37:12 -0700
 
How do you do this in SQL?

I have a file ordered by key value and a timestamp.  There are multiple
records for each key value. I want to find the difference between time
stamps of successive records and calculate the average difference for a key
value group.  I know, it's easy in RPG.  I'm not trying to measure
programmer productivity. <g>
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