Magento using EAV Structure for store product data. So, using single query it quit impossible or direct query, save product data, not possible.
https://fishpig.co.uk/magento/tutorials/eav-database-structure/
There are a lot of tables and lots of related tables has used to save data for the product. So my suggestions to avoid the idea of using query save a product full data at the database, if you are new at Magento.
If you have talked about a single field/attribute save of this might be easy to answer. But you must have an idea of EAV data pattern.