For each column a number of intervals - known as bins - can be defined. Each of these bins is given a unique name (for this column), a defined range, and open or closed interval borders. They automatically ensure that the ranges are defined in descending order and that interval borders are consistent. In addition, each column is either replaced with the binned, string-type column, or a new binned, string-type column is appended.
Please note, that if the underlying database does not support "CASE" statements, only one column will be selectable. You can enable "CASE" support in the Advanced tab of the corresponding DB Connector node