bizarre infrequent error with dbload

hi, This script runs 14x throughout the day, extracting data from ods vers7.13UC3 on hpux10.01, and loads data into ods 7.23uc4 on solaris 2.5.1. i would get this error now and then, and could not understand why. Dropping and creating tables in the datamart: Thu Dec 11 15:57:56 PST 1997 Error in line 1Near character position 18 Error in line 113Near character position 35 and this error originates from this line in my script: dbaccess dbname summfile.sql --> and my summfile.sql :> drop table summfile; create table summfile( ...) extent size 54000 next size 20000; drop table summhead; create table summhead (...); and if i run the script again, everything will run without any hiccups. i get this error once a few months, and could not really understand why. pls advise. thanks. hk