WP QueryBuilder 1.7.0 is released.

Delete Statement

Delete one row

$db::delete('posts')
    ->where('ID', '=', 3)
    ->execute();

Delete all records in a table

$db::delete('posts')->execute();

Get only raw SQL without DB execution.

$sql=
$db::delete('posts')
    ->where('ID', '=', 3)
    ->getSql();