drop synonym employees;
drop synonym departments;
drop synonym locations;
drop synonym countries;
drop synonym regions;
drop synonym jobs;
drop synonym job_history;

drop table employees;
drop table departments;
drop table locations;
drop table countries;
drop table regions;
drop table jobs;
drop table job_history;

create table job_history as select * from hr.job_history;
create table jobs as select * from hr.jobs;
create table regions as select * from hr.regions;
create table countries as select * from hr.countries;
create table locations as select * from hr.locations;
create table departments as select * from hr.departments;
create table employees as select * from hr.employees;