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Version: 5.4

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.