To copy all posts from the custom post type abcbizrev_reviews to another custom post type revix_reviews, you can use a simple custom script or run SQL queries to duplicate the posts in the WordPress database. Here's a safe way to do it programmatically via PHP:

copy-posts-functions.php

<?php 
/**
* You can place this script in your theme’s functions.php file or in a custom plugin to execute the process. After running, you may want to remove it to avoid duplicating the posts again accidentally.
*/
function copy_abcbizrev_reviews_to_revix_reviews() {
    // Get all posts of the custom post type 'abcbizrev_reviews'
    $args = array(
        'post_type'      => 'abcbizrev_reviews',
        'posts_per_page' => -1, // Get all posts
        'post_status'    => 'any', // Include all post statuses
    );
    
    $posts = get_posts($args);
    
    if ($posts) {
        foreach ($posts as $post) {
            // Set up the new post data
            $new_post = array(
                'post_title'    => $post->post_title,
                'post_content'  => $post->post_content,
                'post_status'   => $post->post_status,
                'post_type'     => 'revix_reviews', // New post type
                'post_author'   => $post->post_author,
                'post_date'     => $post->post_date,
                'post_date_gmt' => $post->post_date_gmt,
            );

            // Insert the new post into the new post type
            $new_post_id = wp_insert_post($new_post);

            // If you want to copy metadata, too
            if (!is_wp_error($new_post_id)) {
                $meta_data = get_post_meta($post->ID);
                foreach ($meta_data as $meta_key => $meta_values) {
                    foreach ($meta_values as $meta_value) {
                        update_post_meta($new_post_id, $meta_key, $meta_value);
                    }
                }
            }
        }
    }
}
// Hook the function to run on init, but you should run this only once and remove the hook afterward
add_action('init', 'copy_abcbizrev_reviews_to_revix_reviews');