Store temp table


I want to store a table between flow runs so that I can compare the prevous result table (from yesterday) with the current (today) and only keep the difference to do further manipulations.
How would I do this? Wha is the best practice?

Many thanks for each answer and kep safe.

Best regards,

Hi there @MarcVanC,

welcome to KNIME Community!

You can write data locally once you are done with manipulations. In next workflow iteration (tomorrow if I got it right) read that data and compare with today’s data. Regarding data format you can use KNIME internal format which leads to faster reading/writing data. Table Writer and Table Reader nodes use this format.

Also if both source and destination are database you could utilize DB nodes and functions to perform your task.

Hope this helps!


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Thanks for the quick answer. I will try your solution and get back to this topic.

Best regards and keep safe.


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