Change all http to https in mysql databse?

I should think that you can use phpAdmin Find and Replace where you find “http://www.example.com” and replace with “https://www.example.com“. This should handle all internal linking (if blog, then internal linking as well as images, etc.). It would not cover relative addressing like “//www.example.com”. In the case of WordPress, this would be done on the wp_posts table, post_content column.