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DB Reader

StreamableKNIME database nodes version 4.3.3.v202104090845 by KNIME AG, Zurich, Switzerland

Executes the input query in the database and retrieves the result into a KNIME data table.
If the node consumes a lot of memory you might want to decrease the "Fetch size" in the "Advanced" tab of the corresponding connector node. The fetch size specifies how many rows are fetched from the database server into KNIME per network round trip. The higher the number the more memory is consumed. However the smaller the number the more network round trips are necessary to fetch large results. Also not all JDBC driver support this option and thus might ignore it.

Input Ports

DB Data connection with the query to execute.

Output Ports

KNIME data table with the result form the database query.

Best Friends (Incoming)

Best Friends (Outgoing)



To use this node in KNIME, install KNIME Database from the following update site:


A zipped version of the software site can be downloaded here.

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