Hi,
I don't fully understand why in the example below the Filter Tool is not doing what is supposed to do. It must be a data type situation...
1. Filter Tool > Basic Filter > Field 'Category' > Is not null > The result is blank
I changed to 'Contains' and it worked.
What I need to do is similar to this example, configuring the Basic filter to 'Is not [Null]'
Data source: Challenge #337
Thanks!
Solved! Go to Solution.
Hi @alt_marsan
Make sure your data type is a string value when using the null or is not null option.
When using the filter tool, and using the "is not null" option, the false anchor will provide the null values.
You can always use the T or F anchor of the filter tool depending on what data you need.
Hi @PanPP,
Thanks for your reply. I am very familiar with the anchors, also I previously tried all different types of String Data Type: String, V_String, V_WString, etc. Still nothing changed. Also , I run the workflow multiple times after each change. I'm puzzled by this issue...
Hi @alt_marsan ,
In this situation, the correct approach is indeed to use Contains.
The ISNULL() checks to see if the field's value is null (not existent or not).
For example, in the [listed in] field, ISNULL() can only filter out rows with no observations --> rows that appear as a [null] entirely. It won't actually check if 'international' is among the other listed categories or not.
Hope this helps