dbupgrad  -c "uid=alpha_dba;pwd=QTYSKMRDY05C7B7F;dsn=alpha_air"  -o upgr_log.txt 
pause
dbunload   -c "uid=alpha_dba;pwd=QTYSKMRDY05C7B7F;dsn=alpha_air" -ac "uid=DBA;pwd=SQL;dbf=emptyoem4.db" -o updlog.txt  -v
pause