https://stackoverflow.com/questions/785765/ora-08177-cant-serialize-access-for-this-transaction
https://docs.oracle.com/javadb/10.6.2.1/ref/rrefsqlj41180.html
Create auto Trigger in Oracle SQL Developer:
create or replace TRIGGER amana
BEGIN
EXECUTE IMMEDIATE 'ALTER SESSION SET ISOLATION_LEVEL READ COMMITTED';
END;