oracle默认表空间名称及路径

D:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS01.DBF

D:\APP\ADMINISTRATOR\ORADATA\ORCL\UNDOTBS01.DBF

D:\APP\ADMINISTRATOR\ORADATA\ORCL\SYSAUX01.DBF

D:\APP\ADMINISTRATOR\ORADATA\ORCL\SYSTEM01.DBF

D:\APP\ADMINISTRATOR\ORADATA\ORCL\EXAMPLE01.DBF

查询语句

select t.tablespace_name,

      t.file_name,

      t.bytes / 1024 / 1024,

      t.autoextensible,

      t.maxbytes / 1024 / 1024

 from dba_data_files t;

查看某个表空间有多少张表

select * from all_tables where tablespace_name='dba_data_files.tablespace_name';