wp_comments 

This stores comments for posts, pages, and custom post types. This table consists of fifteen columns. Let's identify some of the most important in the following table:

comment_post_ID Stores the post, page, or custom post type ID where the comment belongs.
comment_author Keeps the name of the user who created this comment.
comment_content Used to keep the comment added by the user. This column can contain plain text values as well as HTML depending on the allowed options in the site.
comment_approved In most sites, a comment needs to be approved before it appears for public. This column stores Boolean status on whether a comment is approved or pending approval.
comment_type Stores the type of comment. Default comment ...

Get WordPress Development Quick Start Guide now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.