Under what circumstances will this happen?

[Maskvvv]

CREATE -> insert
UPDATE > update
DELETE -> delete
READ -> ???
TRUNCATE -> ???

[leonardBang]

IIUC, READ means 'inert' record from history records of a table, TRUNCATE means 'delete' record that produced by TRUNCATE command.

[Maskvvv]

Thank you for your reply. I'd like to ask you two more questions.

1. How to understand the sentence "'insert' record from history records of a table"?
   2 What's the difference between READ and CRATE?