I finaly use stored procedure and create a temporary table so I can work with it. It works well. Thanks for the help.
SQL average value on a specific period
質問
I have a table that has periodical values, with a 1 second period. Exemple:
DateTime Value
2010/01/01 00:00:00 2
2010/01/01 00:00:01 4
2010/01/01 00:00:02 3
2010/01/01 00:00:03 1
2010/01/01 00:00:04 3
2010/01/01 00:00:05 4
2010/01/01 00:00:06 6
2010/01/01 00:00:07 1
I would like to know the SQL Request to get average values on a 2 seconds period, so the result would be:
DateTime Value
2010/01/01 00:00:00 3
2010/01/01 00:00:02 2
2010/01/01 00:00:04 3.5
2010/01/01 00:00:06 3.5
How can I do that in SQL?
Thanks
EDIT: I use Microsoft SQL Server Express R2 2008
解決
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