I could not find the PL/SQL tutorial in this portal as its compiler is present. If a new tutorial could be arranged, then it would be pretty helpful.

SELECT '&&cs_file_prefix._&&cs_script_name.' cs_file_name FROM DUAL; DEF cs_hours_range_default = '24'; @@cs_internal/cs_sample_time_from_and_to.sql @@cs_internal/cs ...