@mi171 knime has a broad variety of options to work with SQL and databases:
https://docs.knime.com/latest/db_extension_guide/index.html#intro
If you just want to work within knime and with knime nodes that is also an option. The knime/Beginners Space – KNIME Community Hub might be a good point to start.
As @hmfa has mentioned you can also directly work with MS Access itself: