Welcome to nixCraft forum.
You can use Oracle Migration Workbench software (tool) to make migration. It simplifies the process of migrating MySQL (and other third-party) database systems to the Oracle platform including Oracle9i and/or Oracle10g. The Oracle Migration Workbench migrates the entire database schema, including triggers and stored procedures, in an integrated, environment.
You can download software from Oracle site itself:
http://www.oracle.com/technology/tec...nch/index.html
Let me know if you need any further help!