Delete WordPress comments using MySQL query

Spam comments in WordPress is a real problem. There are tons of theme daily.

If you want to delete those comments, here are some useful MySQL queries for you.

Delete all comments

$query = "DELETE FROM {$wpdb->prefix}comments";

Delete unapproved comments

$query = "DELETE FROM {$wpdb->prefix}comments WHERE comment_approved = '0'";

Delete Spam comments

$query = "DELETE FROM {$wpdb->prefix}comments WHERE comment_approved = 'spam'";

Delete Trash comments

$query = "DELETE FROM {$wpdb->prefix}comments WHERE comment_approved = 'trash'";

Delete unapproved comments of which URL field has a link

$query = "DELETE FROM {$wpdb->prefix}comments WHERE comment_approved != '1' AND comment_author_url != ''";

There are comments’ containt has links (a tag). Most of them are spam for sure.

$query = "DELETE FROM {$wpdb->prefix}comments WHERE comment_approved != '1' AND (comment_content like '%http://%' or comment_content like '%https://%')";

Use these queries in code

global $wpdb;
//get $query from one above
$wpdb->query($wpdb->prepare($query));

I made a plugin for this purpose. You can download it here.

TL Bulk Comment Delete