select tablespace_name, file_id, file_name,round(bytes/(1024*1024),0) total_space from dba_data_files order by tablespace_name;

//修改表空間大小(32000可改為想要的數(shù)值)
alter database datafile '要修改的數(shù)據(jù)文件地址' resize 32000m;

//新增數(shù)據(jù)文件
ALTER TABLESPACE 表空間名
ADD DATAFILE '數(shù)據(jù)文件路徑'
SIZE 500M
AUTOEXTEND 
ON NEXT 1M 
MAXSIZE UNLIMITED;