WooCommerce installs some custom tables to store its data during install. More about tables installed: https://github.com/woocommerce/woocommerce/wiki/Database-Description

Tables can be removed when uninstalling WooCommerce, not during deactivation. This doesn’t happen automatically. To delete the WooCommerce tables from the database entirely, follow the instructions at Uninstalling WooCommerce.

Note: When defining a WordPress SQL table prefix, make sure it’s less than 20 characters. Otherwise WooCommerce is unable to create all tables properly. This could lead to the following issue.

Questions and support #

Do you still have questions and need assistance? 

This documentation is about the free, core WooCommerce plugin, for which support is provided in our community forums on WordPress.org. By searching this forum, you’ll often find that your question has been asked and answered before.

If you haven’t created a WordPress.org account to use the forums, here’s how.

• If you’re looking to extend the core functionality shown here, we recommend reviewing available extensions in the WooCommerce Marketplace.
• Need ongoing advanced support or a customization built for WooCommerce? Hire a Woo Agency Partner.
• Are you a developer building your own WooCommerce integration or extension? Check our Developer Resources.