查询

SELECT tablespace_name, file_name,
round(bytes / (1024 * 1024), 0) total_space 
FROM dba_data_files;

新建

表空间名TS_SBD_ZNYJ、表空间文件/home/oracle/tablespace/TS_SBD_ZNYJ.dbf、大小256M
create tablespace TS_SBD_ZNYJ datafile '/home/oracle/tablespace/TS_SBD_ZNYJ.dbf' size 256M;

添加

alter tablespace TS_SBD_ZNYJ add datafile '/home/oracle/tablespace/TS_SBD_ZNYJ01.dbf' size 256M autoextend off;

删除

drop tablespace tablespace_name including contents and datafiles;