Field values with the
external data type CHAR are plain text values; that is, these values consist of readable characters.You can specify these
data formats in load and unload commands as a processing specification for the data stream (syntax rule stream_format_spec).Plain text values can be used to input data into columns of any
internal data type used by the database and can be converted to any data type. If you want to load plain text values into numerical columns, the values must be able to be interpreted as numbers.