append one page content into another

You can use get_post_field() for getting the post fields i.e. Title, Content etc.

// Replace $post_id with the ID of your post/page
<?php 
  get_post_field( post_title, $post_id);  
  get_post_field( post_content, $post_id); 
?> 

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)