pedromartins4 / H2-to-MySQL

A Python script to convert H2 into MySQL.

H2-to-MySQL

This script does exactly that: automatically reads all the information in a H2 database and exports it into a MySQL database. This is particularly useful for Django which does not support H2. If you're as lucky as me this is the best you'll find.

To run, look at __main__ and change the global variables that set paths and server configurations.

It was tested in one DB with Python3 and works flawlessly. It's not very sophisticated but if it saves you a few hours than it is good enough for me.

Some details

The script reads H2 using JayDeBeApi with the H2 driver (the h2-1.4.196.jar included here) and writes to MySQL with PyMySQL. These are the only two dependencies.

The only thing you might need to edit is the function convert_types, which converts H2 types into MySQL types. I did not implement this function exhaustively, only the types I needed, but it is fairly straightforward. Currently, it converts:

• VARCHAR(*) -> TEXT
• BOOLEAN -> Boolean
• DOUBLE(N) -> FLOAT(N,N-1)
• REAL -> FLOAT(15,10)

If you have any problems, please submit an issue. If you improve the code, please consider submitting a pull request.

Happy coding!