Hi Joel, maybe something like this.  It's pretty self-explanatory once you run it

drop table if exists #foo;
go
create table #foo(
  [datetime]    datetime,
  tonsperhour...

Maybe you're looking for something like this.  It assumes there's a primary key column in the OfenbuchVC1212_V10 table called 'OfenbuchId'.  After update of the OfenbuchVC1212_V10 table the trigger first determines...

• This reply was modified 5 years ago by Steve Collins. Reason: Added INSERT

[Edit] I posted some code that didn't look right so I updated.  Maybe something like this

select w2.RCWHS# as DC, w2.RCITM# as [Item Number],
    ...

• This reply was modified 5 years ago by Steve Collins.
• This reply was modified 5 years ago by Steve Collins.

Maybe something like this

;with
cte_ntile(ReadingDateTime, ReadingValue, [Group]) AS (
    select *, ntile(2) over(order by ReadingDateTime asc) AS [Group]
    from #SIDataGroup),
cte_rn(ReadingDateTime, ReadingValue, [Group],...

• This reply was modified 5 years ago by Steve Collins. Reason: Typo
• This reply was modified 5 years ago by Steve Collins. Reason: Simplified query: replaced UNION ALL in subquery with SELECT TOP(n)

It turns out the median is derived from the ordered set.   My query only calculated the midpoint.  If the number of rows in the [Group] (calculated as 'grp_count') is even...

Thanks for the feedback.  Nice I'm happy if the code helps.  Precision-wise it's maybe not ideal.  I tried it with nanoseconds and there was an overflow error.  Maybe microseconds would...

Maybe something like this.  The 'median_dt' column calculation adds half the difference in seconds between the min and max ReadingDateTime values within the [Group] group to the min ReadingDateTime

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