Postgresql, Autocommit, Oracle.
as select 1 n,current_timestamp t; select * from DEMO; insert into DEMO values (2,current_timestamp); select * from DEMO; rollback; select * from DEMO; start transaction; insert into DEMO values (3,current_timestamp); \q psql -U postgres demo ### PostgreSQL 11.4 select * from DEMO; \q See? I have