While importing i am getting the following errors.

IMP-00017: following statement failed with ORACLE error 604:
"COMMENT ON COLUMN "IP_USER_ROLE_MAST"."USER_ROLE_DESC" IS 'This column is "
"used store the description of role'"
IMP-00003: ORACLE error 604 encountered
ORA-00604: error occurred at recursive SQL level 1
ORA-01401: inserted value too large for column
ORA-06512: at line 2

Why i am getting the error and how to avoid it.

Regards

Pradipta