Hello I have a column let's says its called 'Column A' and it looks like this:
How do I concat so It shows in the same column like so:
Is there a beast mode that can help me do that?
Google LIST_AGG and GROUP_CONCAT.
Alternatively look at PIVOT / UNPIVOT in a SQL context. The same thing exists for Magic as Collapse and Uncollapse Columns
Unfortunately, GROUP_CONCAT() is what you are looking for, but that is not available in a beast mode.
You would need to aggregate COLUMN A in a dataflow using GROUP_CONCAT()