Node Connectivity
There are 3950 nodes that can be used as predessesor
for a node with an input port of type 
Table.
Workflow Input Modern UI
Receives an input from another KNIME workflow that executes this workflow using the Call Workflow Service node.
Workflow Output Modern UI
Sends back data to a KNIME workflow calling this workflow. For use in workflows that are called from other workflows.
Call Workflow (Table Based)
Calls workflows
Call Workflow (Row Based)
Calls a remote or local workflow for each row in the input table, passing a JSON object and appending results as new columns.
Call Workflow (Table Based) Deprecated
Calls workflows
Container Input (Raw HTTP)
Reads the body, headers, and the query string from an HTTP request calling the workflow and outputs it in 3 different tables.
Container Input (Row)
Receives a row from an external caller (i.e. the Call Local/Remote Workflow (Row Based) nodes or via REST)
Container Input (Table)
Reads the content of a table from an external caller (e.g the Call Workflow (Table Based) node).
Container Output (Table) Modern UI
Reads the content of a table and makes it available to an external caller (e.g a Call Workflow node).
Container Output (Row)
Reads the content of a table and makes its first row available to an external caller (e.g. a Call Local/Remote Workflow (Row Based) node).