oracle表空间不足ORA-01653的问题: unable to extend table

SELECT a.tablespace_name "表空间名",
a.bytes / 1024 / 1024 "表空间大小(M)",
(a.bytes - b.bytes) / 1024 / 1024 "已使用空间(M)",
b.bytes / 1024 / 1024 "空闲空间(M)",
round(((a.bytes - b.bytes) / a.bytes) * 100, 2) "使用比"
FROM (SELECT tablespace_name, sum(bytes) bytes
FROM dba_data_files
GROUP BY tablespace_name) a,
(SELECT tablespace_name, sum(bytes) bytes, max(bytes) largest
FROM dba_free_space
GROUP BY tablespace_name) b
WHERE a.tablespace_name = b.tablespace_name
ORDER BY ((a.bytes - b.bytes) / a.bytes) DESC;

SELECT file_name,
tablespace_name,
bytes / 1024 / 1024 "bytes MB",
maxbytes / 1024 / 1024 "maxbytes MB"
FROM dba_data_files
WHERE tablespace_name = 'DATAX_TEST';

SELECT file_id, file_name, tablespace_name, autoextensible, increment_by
FROM dba_data_files
WHERE tablespace_name = 'DATAX_TEST'
ORDER BY file_id desc;

alter database datafile '/data/u01/app/oracle/product/11.2.0/dbhome_1/dbs/DATAX_TEST.DBF' autoextend on;

SELECT * FROM dba_data_files t WHERE t.tablespace_name='DATAX_TEST';

alter database datafile '/data/u01/app/oracle/product/11.2.0/dbhome_1/dbs/DATAX_TEST.DBF' resize 2000M;

SELECT dbms_metadata.get_ddl('TABLESPACE', 'USER_DATA') FROM dual;

alter tablespace 表空间名称 add datafile '全路径的数据文件名称' size ***M
autoextend on maxsize 20G;

SELECT file_name, file_id, tablespace_name
FROM dba_data_files
WHERE tablespace_name = '表空间名称'

altertablespace 表空间名称
DROP datafile '/u01/app/oracle/product/10.2.0/oradata/orcl/HSDC.dbf '