NEXUS_FIELDS Table Layout for Rivendell

The NEXUS_FIELDS table contains mappings between Rivendell database rows
and MusicMaster Nexus fields.

FIELD NAME           TYPE              REMARKS
--------------------------------------------------------------------------
ID                   int(11)           Primary Key
STATION              varchar(255)      Nexus Station (Database)
RD_NAME              varchar(255)      Rivendell Name
NEXUS_NAME           varchar(255)      MusicMaster Field Name
NEXUS_ID             int(11)           MusicMaster Field ID