I am looking for a solution to connect to a SQL Server database using ODBC.
Hi @UweMeyer,
Unfortunately Retool currently does not support ODBC. Resources 
But you can connect to databases that require ODBC by using Retool's generic JDBC connector, which allows you to upload and use external JDBC drivers.
For self-hosted Retool deployments, you can mount the necessary driver files to the db-connector container and configure the JDBC_DIRECTORY_PATH environment variable.