Dehydration Store Tables Extension Details

Some tables of SOA dehydration stores and details are available at below Oracle documentation -

http://docs.oracle.com/cd/E23943_01/core.1111/e10108/bpel.htm#r12c1-t12

Also pasting the contents here for ready reference -

Table Name	Table Description
audit_trail	Stores the audit trail for instances. The audit trail viewed in Oracle BPEL Control is created from an XML document. As an instance is processed, each activity writes events to the audit trail as XML.
audit_details	Stores audit details that can be logged through the API. Activities such as an assign activity log the variables as audit details by default. Audit details are separated from the audit_trail table due to their large size. If the size of a detail is larger than the value specified for this property, it is placed in this table. Otherwise, it is placed in the audit_trail table.
cube_instance	Stores process instance metadata (for example, the instance creation date, current state, title, and process identifier)
cube_scope	Stores the scope data for an instance (for example, all variables declared in the BPEL flow and some internal objects that help route logic throughout the flow).
dlv_message	Stores incoming (invocation) and callback messages upon receipt. This table only stores the metadata for a message (for example, current state, process identifier, and receive date).
dlv_subscription	Stores delivery subscriptions for an instance. Whenever an instance expects a message from a partner (for example, the receive or onMessage activity) a subscription is written out for that specific receive activity.
document_ci_ref	Stores cube instance references to data stored in the xml_document table.
document_dlv_msg_ref	Stores references to dlv_message documents stored in the xml_document table.
wftask	Stores tasks created for an instance. The TaskManager process keeps its current state in this table.
work_item	Stores activities created by an instance. All activities in a BPEL flow have a work_item table. This table includes the metadata for the activity (current state, label, and expiration date (used by wait activities)).
xml_document	Stores all large objects in the system (for example, dlv_message documents). This table stores the data as binary large objects (BLOBs). Separating the document storage from the metadata enables the metadata to change frequently without being impacted by the size of the documents.
Headers_properties	Stores headers and properties information.