This article outlines the database structure for the MMv4 digdel_order_item database table.

• id
  Primary Key of the table.
  int(10) | unsigned | auto increment | primary key | indexed
  
• order_id
  SID of the order associated with this digital order item.
  int(10) | unsigned | indexed
• object_id
  SID of the digital object associated with this digital order item.
  int(10) | unsigned | indexed
• access_attempts
  Amount of download attempts made to download the digital object by the customer.
  int(10) | unsigned | indexed
• access_limit
  Maximum amount of download attempts allowed for this digital object
  int(10) | unsigned | indexed
• expire_date
  The date in which the digital object will expire and no longer allow the customer to download it.
  int(10) | unsigned | indexed
• expire_extension
  Amount, in seconds, of extra time given to the expireation of the digital object.
  int(10) | unsigned | indexed
• unlimited_access
  This specifies that the digital object will never expire.
  int(10) | indexed
• release_date
  Date associated with a "Pre-order" type digital object This date is when the digital object will become available.
  int(10) | indexed