Rule based categorization of string

[mlauber71]

@wantti if it is an exact match can you just use a left join?

Duplicated Row ID in a joiner

@MatOk welcome to the KNIME forum. You might want to check your IDs and make sure you always have the right ID. You can either keep the ID in a separate column and use that or if you want to use RowdID you might have to make sure your RowID is the one you want to use. I hope this example might help. You can always convert the current RowID to a column and you can convert a column to a RowID. return $$ROWID$$; If you want to handle your duplicates and understand about them you can read this…