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Function to sum values for attribute - PI Analytics

Question asked by Ervin Tovalino Espinoza on Sep 6, 2018
Latest reply on Sep 6, 2018 by Ervin Tovalino Espinoza

Hello all:


I need to get a cumulative production for month. The production tag is not a PI Point, is obtained using tables via OLEDB, there are only values at 12:00 am that represent the production of the day. I am doing a notification to send a summary every monday where show the cumulative production of the last 7 days (I did it using tag val since -7d to -1d) but I also need the cumulative production since the first day of the month to current day. What kind of function or formula could help me???


Thanks in advance.