Create custom table for custom payment method

[Saladmoon9]

I am developing a custom payment method in OSCommerce v4. 

I would like to know how to: 
1. create a custom table
2. insert into the custom table
3. retrieve data from the table to display them in the admin order details page

[osCommerce-Official]

Please check this article out:

https://www.oscommerce.com/wiki/Creating_Payment_Module