Hi,
Just in case if you wondering how not to return NULL rows when aggregate functions couldnt find value, this is how you can do it!
If Object_Id('tempdb..#myTable') Is Not Null
Drop Table #myTable;
Go
Create Table #myTable(col1 Integer Null, col2 Integer Null)
Insert #myTable(col1) values (1)
;With t_max(tmax, tmin) As
(Select Max(col2), Min(col2)
From #myTable)
Select tmax, tmin
From t_max
Where tmax Is Not Null And tmin Is Not Null
HTH
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