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Call Try Catch - Sub

<p>Playing around with Call Workflow - sub-workflow to "Call Try Catch - Main"</p>

Playing around with Call Workflow - sub-workflow to "Call Try Catch - Main"

https://community.knime.com/c/ask-the-community/question-about-fail-in-execution-behavior-with-call-workflow-and-try-catch#comment_wrapper_107011269?u=mlauber71

In order to get a Workflow Service Input / Output other than the table connection you have to:

  • drag the connection of the type you want from the previous node

  • until a transparent plus sign appears

  • then you search for the "Workflow Service Output"

  • when you click this it will change the type from table to the type you were just dragging along ....

THX to Linh for this insight ...

https://forum.knime.com/t/call-workflow-table-based-additional-table-input-ports-possible/83894/2?u=mlauber71

Workflow Input
Try (Variable Ports)
the new data gets sent
Workflow Output
input
Workflow Input
Remove all data.to make table empty
Row Filter
Catch Errors (Data Ports)
var_port=1
Variable Creator
Table is empty.
Empty Table Switch
output-parameter-variable
Workflow Output
Result = "Table was OK"
Constant Value Column Appender
var_port=0
Variable Creator
The alternative if the main path does failResult = "Table was empty"
Table Creator

Nodes

Extensions

Links

Download

To use this workflow in KNIME, download it from the below URL and open it in KNIME:

Download Workflow
Created by: sande
Created at: 2022-08-05
On NodePit since: 2026-06-19
Last update: 2026-06-19
Created with KNIME version: v5.11.1

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