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Data in Motion vs Rest
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Data in Motion vs Rest

EasySQL · PostgreSQL

Problem

What is the difference between data in motion and data at rest?

Using the provided tables, classify each data object according to whether it currently has an active transfer. Treat objects without an active transfer as data at rest, including objects with completed, failed, or canceled transfers.

Output

  1. One row per data object with object_id, object_name, data_state, size_bytes, and transfer_id.
  2. Include all data objects, sort by object_id ascending, and use NULL for transfer_id when no active transfer exists.

Schema

data_objects
ColumnTypeDescription
object_idPKINTUnique identifier for the data object
object_nameVARCHAR(100)Name of the data object
data_classificationVARCHAR(30)Sensitivity classification of the object
size_bytesBIGINTObject size in bytes
storage_regionVARCHAR(50)Region where the object is stored
transfer_sessions
ColumnTypeDescription
transfer_idPKINTUnique identifier for a transfer session
object_idINTData object involved in the transfer
transfer_statusVARCHAR(20)Current or final transfer status
source_systemVARCHAR(50)System sending the data
destination_systemVARCHAR(50)System receiving the data
Tablesdata_objectstransfer_sessions
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