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RDBMS interface and duplicate values in PI

Question asked by larsoleruben on May 9, 2017
Latest reply on Nov 19, 2018 by GPolyak


We have a few RDBMS interfaces getting data from an SQL-Server once a day. Recently we have experienced duplicate entries in PI for points where the database value is null.

We have other data users, which purposedly crash when they encounter duplicate values as this should not be the case.

Is this behavior intended.

Se setting etc below:


Data in PI




Data in the table from which we take the values




Interface setting, NOTE read before owerwrite. This should never happen, or?




Thanks in advance