If you are already certified for MySQL 4 (Core or Professional certification), you can upgrade your certification by taking a single exam:
For each upgrade exam, also read the notes earlier in this guide for the certification that you are upgrading to.
Triggers (10%)
Stored Routines (20%)
Client/Server Concepts (5%)
The mysql Client Program (5%)
Data Types (10%)
SQL Expressions (5%)
User Variables (5%)
Prepared Statements (5%)
Subqueries (10%)
Views (15%)
Obtaining Database Metadata (10%)
Databases (5%)