export all oracle database to a dump file:
$ORACLE_HOME/bin/exp / GRANTS=y ROWS=y FILE="exp.dmp exp_1.dmp" FILESIZE=1GB LOG=export.log OWNER="()"
export all oracle database to a dump file:
$ORACLE_HOME/bin/exp / GRANTS=y ROWS=y FILE="exp.dmp exp_1.dmp" FILESIZE=1GB LOG=export.log OWNER="()"