1. MySQL Migration Toolkit
Michael G. Zinner
Lead Developer GUI Team

2. MySQL Migration Toolkit
Features
Easy to use, Wizard like Interface
Plug-in Architecture (Oracle, MSSQL, Sybase, …)
Support for Java and Native C modules
Oracle Migration (no SPs) / MS Access modules
Others to follow
Every database with a JDBC driver can be addressed
Scriptable
Store / Restore Application State (e.g. to repeatedly trigger the data transfer)

3. Customization Support for new RDBMS can be added
Reverse engineering module and migration module need to be added
The migration process can be customized
New “methods” can be added to existing modules
A new module can be derived
Everything can be scripted
Migration Toolkit can output a script
Script can be executed from the command line

4. Generic Runtime Environment (GRT)
Thin C layer
Inspired by Objective C
Enables dynamic typing in C
Provides dynamic data objects / package definitions
Allows to add modules written in C / Java / PHP / Lua (Perl / Python / …)
Base for all upcoming GUI tools
Everything that can be done in the GUI, can be done from the shell
First used for the MySQL Mirgation Toolkit to embed Java / JDBC
Will add scripting and plugin functionality for Workbench, Enterprise Manager
Nice Integration into Java / PHP / …
Totally transparent to Java / PHP / … developers
Table table = new Table(schema);
table.setName("new_table");
return table;

5. Internal Architecture

6. Modules used for the MT Reverse Engineer Modules Migration Modules
Analyze and return the schema information
One needed for every database vendor
The generic JDBC module can be used
Migration Modules
Offer methods to migrate source objects to target (MySQL) objects
Handles the data bulk transfer
Every migration module derives from the base class
Only specific methods (e.g. datatype mapping) need to be rewritten
(Transformation Modules)
Used to generate the actual SQL commands
Used to execute / export the SQL commands

7. Implementation Details
For the MT, Java & C Modules are used
Make use of JDBC drivers
Easy to read / expand Java code
Smooth integration of Java into the GRT C library (JNI)
Cross platform
Ships with Eclipse project
Use the power of Eclipse
Understand the code easier
Instant compilation of changes into the MT classpath
Base Schema Object Package
All vendor specific schema objects derive from com.mysql.grt.db
e.g. com.mysql.grt.db.mysql, com.mysql.grt.db.oracle

8. Migration Toolkit Summary
• Offers an open platform for migration
• Comes with modules for various RDBMS vendors
• Is totally customizable and scriptable
• First tool to make use of the GRT Environment