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03_​Flow_​Variables

This directory contains 8 workflows.

Icon01_​Using_​Flow_​Variables_​for_​the_​Time_​Range 

This workflows shows an example of filtering data with flow variables that indicate date and time values. The start and end date are defined as global flow […]

Icon02_​Using_​Flow_​Variables_​to_​control_​Execution_​Order 

In this workflow, the data are first written into a temporary (in-memory) SQLite database and then read into KNIME. In order to control the execution order […]

Icon03_​Create_​and_​Consume_​Flow_​Vars 

This workflow extracts data for a given country, aggregates it, and renames the aggregated column to the country name. The country name as a flow variable […]

Icon04_​Extract_​Data_​for_​Highest_​Sale_​Country 

It is easy to find the country with the highest number of sold items with: - a GroupBy node to calculate the number of sold items by country; - then a […]

Icon05_​Modified Variables Propagation in GET Request Captured in Try Catch 

The workflow sends a GET request inside of a Try & Catch construction. The flow variable totalItems containing the total number of books available on Google […]

Icon06_​Modified Variables Propagation in GET Request Loop 

This workflow demostrates the use of the option "Propagate modified loop variables" available in Loop End nodes. The workflow repeats sending GET requests […]

Icon07_​Modified Variables Propagation in GET Request Nested Loop 

This workflow demostrates the use of the option "Propagate modified loop variables" available in Loop End nodes. Given a list of search terms, the workflow […]

IconVariable Filter Example 

<p>The Variable Row Filter is essential when working with many flow variables in a large workflow. It keeps the flow variables "traveling" through the […]