We rarely see only full text-based content in modern websites. Most posts and pages are designed to use images and videos. So, media manager becomes a must user feature for many site owners. Using and developing with the WordPress media uploader could be different compared to building file upload forms from scratch. Let's review the use of database for media uploads using Media | Add New section:
INSERT INTO `wp_posts` (`post_author`, `post_date`, ...........) VALUES (1, '2018-07-13 09:16:26',....)INSERT INTO `wp_postmeta` (`post_id`, `meta_key`, `meta_value`) VALUES (50, '_wp_attached_file', '2018/07/test.png')INSERT INTO `wp_postmeta` (`post_id`, `meta_key`, `meta_value`) VALUES (50, '_wp_attachment_metadata', 'a:5:{s:5:\"width\";i:512;s:6:\"height\";i:512.....') ...
