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Version: 5.5

SQL Selects

No data transfer from the database – but also no transfer error​

Your connection is supposed to read data from the database. You have configured a DB object with SQL Select and filter for this purpose. The OPC router status shows no error, but no data is transferred at the specified time.

  • In the DB transfer object, there is a tab called "Query." Set the option "Behavior when query result is empty – trigger read error" here. If the cause of the failed transfers is an empty SELECT result, the status will now show an error.