清空当前连接的Oracle数据库

-- 清空数据库 --
DECLARE
  TYPE name_list IS TABLE OF VARCHAR2(40);
  TYPE type_list IS TABLE OF VARCHAR2(20);

  Tab_name name_list := name_list();
  Tab_type type_list := type_list();

  sql_str VARCHAR2(500);
BEGIN
  sql_str := 'select uo.object_name,uo.object_type from user_objects uo where uo.object_type not in(''INDEX'',''LOB'') and uo.object_name not like ''BIN$%'' order by uo.object_type desc';
  EXECUTE IMMEDIATE sql_str BULK COLLECT
    INTO tab_name, tab_type;

  FOR i IN Tab_name.FIRST .. Tab_name.LAST LOOP
    sql_str := 'DROP ' || Tab_type(i) || ' "' || Tab_name(i) || '"';
    EXECUTE IMMEDIATE sql_str;
  END LOOP;
END;