Java: ResultSets and Mapping

It risks data type mismatches and runtime errors.

Using rs.getString() for all column types can lead to type mismatches, as it doesn't account for the actual data type of the column. This can cause runtime errors when trying to process non-string data. For instance, using rs.getString() on a numeric column like 'price' might lead to incorrect data handling in an e-commerce application when performing calculations.