title: what's wrong with the mysql command?
body: <p>when i  run the following command in phpmyadmin.</p>
  
  <pre><code>CREATE TABLE subscribers (
    'subscriber_id' int(11) NOT NULL auto_increment,
    'customers_id' int(11) default NULL,
    'email_address' varchar(96) NOT NULL default '',
    'email_format' varchar(4) NOT NULL default 'TEXT',
    PRIMARY KEY  ('subscriber_id')
  ) TYPE=MyISAM;
  </code></pre>
  
  <p>it shows me <code>#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''subscriber_id' int(11) NOT NULL auto_increment, 'customers_id' int(11) defaul' at line 2</code></p>
  
  <pre><code> INSERT INTO query_builder (query_id, query_category, query_name, query_description, query_string, query_keys_list) VALUES (6, 'email,newsletters', 'All Newsletter Subscribers', 'Returns name and email address of all Customer Account subscribers and all Newsletter-Only subscribers.', 'select c.customers_firstname, c.customers_lastname, s.email_address as customers_email_address from TABLE_SUBSCRIBERS as s left join TABLE_CUSTOMERS as c on c.customers_id = s.customers_id ', '')
  </code></pre>
  
  <p>it shows :
  1062 - Duplicate entry '6' for key 1</p>
  
  <p>i fell the command is right. i don't know how to correct it? thank you.</p>