Datom

• Datom is event in Datomic

• 1st element: ID of the entity

• 2nd element: ID of the attribute

• 3rd element: value of the attribute

• Penultimate element: ID of the transaction

• Last element: true (inserted), false (removed)

[
  ; transaction entity
  #datom [13194139534332 50 #inst "2022-03-30T19:42:55.645-00:00" 13194139534332 true]

  ; entity 1
  #datom [17592186045437 72 "The Goonies" 13194139534332 true]
  #datom [17592186045437 73 "action/adventure" 13194139534332 true]
  #datom [17592186045437 74 1985 13194139534332 true]

  ; entity 2
  #datom [17592186045438 72 "Commando" 13194139534332 true]
  #datom [17592186045438 73 "action/adventure" 13194139534332 true]
  #datom [17592186045438 74 1985 13194139534332 true]

  ; entity 3
  #datom [17592186045439 72 "Repo Man" 13194139534332 true]
  #datom [17592186045439 73 "punk dystopia" 13194139534332 true]
  #datom [17592186045439 74 1984 13194139534332 true]
]

Transaction Entity

• Transactions are perfromed using the d/transact
• Each transaction is also an entity that has a timestamp attribute (#inst)
• After a successful run it shows the db-before and db-after