ORA-00027 Cannot kill current session Nitish Anand Srivastava / February 22, 2020 Cause: Attempted to use ALTER SYSTEM KILL SESSION to kill the current session. Action: None. Share this: Click to share on WhatsApp (Opens in new window) WhatsApp Tweet Click to share on Telegram (Opens in new window) Telegram Click to email a link to a friend (Opens in new window) Email More Click to share on Reddit (Opens in new window) Reddit PocketShare on TumblrLike Loading...