I have a 20GB Microsoft SQL Server database that needs to be migrated to MySQL.

Right now I only have the schema for the source db. I tried the migration wizard on the schema in MySQL Workbench and it worked out fine (with some minor varchar issues that was easily solved)

As I am waiting for the data I am wondering if MySQL Workbench is the way to go here as the source is 20GB.

Can the Workbench handle it? Is it effective?
Should I investigate other tools than the Workbench?

Any advice and pointers is appreciated.

  • 2
    Presumably this is a one-time event? Why not just wait for it, and see if it works?
    – Hannah Vernon
    Jun 1, 2016 at 18:16

2 Answers 2


If you're looking for an easy-to-use, open-sourced tool, checkout etlalchemy.

You can carry out your SQL Server to MySQL database migration with 4 lines of Python code:

To Install:

pip install etlalchemy

(On El Capitan you may have to run pip install --ignore-installed etlalchemy)

To Run:

from etlalchemy import ETLAlchemySource, ETLAlchemyTarget

mssql_db_source = ETLAlchemySource("mssql+pyodbc://username:password@DSN_NAME")

mysql_db_target = ETLAlchemyTarget("mysql://username:password@hostname/db_name", 


If you want to learn more about etlalchemy, check out this article.


MySQL Workbench provides a quick way to migrate data and applications from Microsoft SQL Server to MySQL with fastest possible ways utilizing resources.20 GB data is not a big deal.There are tools available in the market but which is not free of cost.

  • Well it didn't work for me. Kept displaying errors in data in a poorly laid and jumbled up error messages. After wasting several days, finally tried a paid tool and it worked fine.
    – Allen King
    May 14, 2017 at 4:53

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.