Setting table fields in an Oracle database is an automatic sequence

--Create a sequenceCreateSequence Zonecode_seq Start with 1Increment by 1; --Create a triggerCreate or Replace TriggerZonecode_trigger beforeInsert  onorg_hospitalzone_dict forEach rowbegin      SelectZonecode_seq.nextval into: New. Hosp_zonecode fromdual; End ; Insert  intoOrg_hospitalzone_dict (Hosp_zonename)Values('1 Hospitals')Insert  intoOrg_hospitalzone_dict (Hosp_zonename)Values('2 Hospitals')Insert  intoOrg_hospitalzone_dict (Hosp_zonename)Values('3 Hospital')Insert  intoOrg_hospitalzone_dict (Hosp_zonename)Values('4 Hospital Area')Select *  fromorg_hospitalzone_dictDelete   fromOrg_hospitalzone_dict TwhereT.hosp_zonecode<5 

Setting table fields in an Oracle database is an automatic sequence