computer programming oracle tune stekilove 2018. 1. 20. 01:27 https://oracle-base.com/articles/8i/explain-plan-usagehttps://docs.oracle.com/cd/E11882_01/server.112/e41084/sql_elements006.htm#SQLRF51098https://oracle-base.com/articles/9i/dbms_xplanhttps://oracle-base.com/articles/11g/real-time-sql-monitoring-11gr1select /*+MONITOR*/ from dual;