connectioncheck is in a separate database. The database contains only the table connectioncheck in which there is only one row.

mysql> show create table album_credit_update;
+---------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Table               | Create Table                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
+---------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| album_credit_update | CREATE TABLE `album_credit_update` (
  `id` mediumint(8) unsigned NOT NULL AUTO_INCREMENT,
  `artist_id` mediumint(8) unsigned NOT NULL,
  `album_id` mediumint(8) unsigned NOT NULL,
  `descriptor_id` smallint(5) unsigned NOT NULL,
  PRIMARY KEY (`id`),
  KEY `album_credit_update_fk1` (`artist_id`),
  KEY `album_credit_update_fk2` (`album_id`),
  KEY `album_credit_update_fk3` (`descriptor_id`),
  CONSTRAINT `album_credit_update_fk1` FOREIGN KEY (`artist_id`) REFERENCES `artist_update` (`id`),
  CONSTRAINT `album_credit_update_fk2` FOREIGN KEY (`album_id`) REFERENCES `album_update` (`id`),
  CONSTRAINT `album_credit_update_fk3` FOREIGN KEY (`descriptor_id`) REFERENCES `descriptor_update` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=9972566 DEFAULT CHARSET=utf8 PACK_KEYS=1 |
+---------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

mysql> show create table connectioncheck;
+-----------------+--------------------------------------------------------------------------------------------------------+
| Table           | Create Table                                                                                           |
+-----------------+--------------------------------------------------------------------------------------------------------+
| connectioncheck | CREATE TABLE `connectioncheck` (
  `i` int(11) DEFAULT NULL
) ENGINE=ndbcluster DEFAULT CHARSET=latin1 |
+-----------------+--------------------------------------------------------------------------------------------------------+

mysql> show create table medianet_track;
+----------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Table          | Create Table                                                                                                                                                                                                                                                                                                             |
+----------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| medianet_track | CREATE TEMPORARY TABLE `medianet_track` (
  `track_id` int(11) NOT NULL,
  `medianet_id` int(11) DEFAULT NULL,
  `recording_id` int(11) DEFAULT NULL,
  `track_count` int(11) NOT NULL DEFAULT '0',
  `track_count_same` int(11) NOT NULL DEFAULT '0',
  PRIMARY KEY (`track_id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 |
+----------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+