how to get history data till date of any attribute in AF
change query date...
Yes I will get values for particular timestamp. But, I have to check date of first value of attribute
how to find the particular date of any attribute when first value came?
Thanks. It is helpful.
Maybe you can see when attribute was created, and set this date/time.
What's the data reference of the attribute? Only attributes with a PI Point data reference will have their history stored in the PI System.
But maybe can be some formula or table lookup...
Yes that's correct provided that the inputs are PI Points or the table provides the time context. In these cases though, the historical data is calculated client side. It isn't stored anywhere in the PI System, but you are correct it can be retrieved in an AF Client.
The only time series data that is stored in the PI System is in the PI Data Archive in PI Points!
It is PI Point
Retrieving data ...