Вы имеете в виду, как это?
$ cat export
export to f1 of del values 1;
export to f2 of del values 2;
$ db2 -tf export
SQL3104N The Export utility is beginning to export data to file "f1".
SQL3105N The Export utility has finished exporting "1" rows.
Number of rows exported: 1
SQL3104N The Export utility is beginning to export data to file "f2".
SQL3105N The Export utility has finished exporting "1" rows.
Number of rows exported: 1