Oracle's Sequence alternatives in MySQL

[Julián Jorge Sanmartino]

We are migrating all our applications from OracleDB to MySQL, and we have some concerns. We want to know if MySQl covers the next feature offered by OracleDB:
- Sequences: We use sequences to generate the primary keys of our data, is it possible to do the same in MySQL? We care a lot about the performance when inserting new values, and I've been told that MySQL's auto increment is slower than Oracle's Sequences.

Also, does the MySQL paid version offer support for migrating from oracle to MySQL? Is there a tool to automatically migrate all data?