Untitled

SELECT id, title, sectionid, catid 
FROM mos_content LEFT JOIN mos_content_frontpage USING(content_id) where id is NULL


Error

SQL query: Documentation

SELECT id, title, sectionid, catid
FROM mos_content
LEFT JOIN mos_content_frontpage
USING ( content_id )
WHERE id IS NULL
LIMIT 0 , 30

MySQL said: Documentation
#1054 - Unknown column 'content_id' in 'from clause' 


CREATE TABLE IF NOT EXISTS `mos_content_frontpage` (
  `content_id` int(11) NOT NULL default '0',
  `ordering` int(11) NOT NULL default '0',
  PRIMARY KEY  (`content_id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;


CREATE TABLE IF NOT EXISTS `mos_content` (
  `id` int(11) unsigned NOT NULL auto_increment,
  `title` varchar(100) NOT NULL default '',
  `title_alias` varchar(100) NOT NULL default '',
  `introtext` mediumtext NOT NULL,
  `fulltext` mediumtext NOT NULL,
  `state` tinyint(3) NOT NULL default '0',
  `sectionid` int(11) unsigned NOT NULL default '0',
  `mask` int(11) unsigned NOT NULL default '0',
  `catid` int(11) unsigned NOT NULL default '0',
  `created` datetime NOT NULL default '0000-00-00 00:00:00',
  `created_by` int(11) unsigned NOT NULL default '0',
  `created_by_alias` varchar(100) NOT NULL default '',
  `modified` datetime NOT NULL default '0000-00-00 00:00:00',
  `modified_by` int(11) unsigned NOT NULL default '0',
  `checked_out` int(11) unsigned NOT NULL default '0',
  `checked_out_time` datetime NOT NULL default '0000-00-00 00:00:00',
  `publish_up` datetime NOT NULL default '0000-00-00 00:00:00',
  `publish_down` datetime NOT NULL default '0000-00-00 00:00:00',
  `images` text NOT NULL,
  `urls` text NOT NULL,
  `attribs` text NOT NULL,
  `version` int(11) unsigned NOT NULL default '1',
  `parentid` int(11) unsigned NOT NULL default '0',
  `ordering` int(11) NOT NULL default '0',
  `metakey` text NOT NULL,
  `metadesc` text NOT NULL,
  `access` int(11) unsigned NOT NULL default '0',
  `hits` int(11) unsigned NOT NULL default '0',
  PRIMARY KEY  (`id`),
  KEY `idx_section` (`sectionid`),
  KEY `idx_access` (`access`),
  KEY `idx_checkout` (`checked_out`),
  KEY `idx_state` (`state`),
  KEY `idx_catid` (`catid`),
  KEY `idx_mask` (`mask`)
) ENGINE=MyISAM  DEFAULT CHARSET=latin1 AUTO_INCREMENT=41 ;