title: How to import a MySQL dump from command line WITH overwrite
body: <p>i googled a lot and i can't found nothing about it !</p>
  
  <pre><code>[root@someday backups]# mysql -u username_1 -p db_1 &lt; tables_to_import/tables.sql 
  ERROR 1050 (42S01) at line 19: Table 'ps_customer' already exists
  </code></pre>
  
  <p>with <code>mysql -f</code> is the same. i wish simply import that .sql and rewrite that tables, can someone help me ? </p>
  
  <p>p.s. i know that when you export a db you can choose option "DROP TABLE" but if i have a backup, without this declaration ? how can i force ? Thanks</p>