CPY-00012
Datatype cannot be copied
Cause
An attempt was made to copy a datatype that is not supported in the COPY command. Datatypes supported by the COPY command are CHAR, DATE, LONG, NUMBER and VARCHAR2.
Action
Re-specify the COPY command, making sure that the unsupported datatype column is removed. For more information, see Appendix B, "SQL*Plus COPY Command".