Syinc databases mySQL to Oracle
well i created a small program using java packages :

mysql-connector-java-5.1.18-bin.jar

and aoracle jdbc driver :

classes12.zip (this version for oracle 8i)

with mysql connector i can run a "select" statements an read from mysql databse, and then i build an "insert" statement to instert them in the oracle database.

this was the best solution i found