查看表空間

select * from user_tablespaces?where table_name = 'TableName'

查看表屬主

select ?Owner? from all_tab_columns where table_name = 'TableName'

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附錄：

A?tablespace?is a storage location where the actual data underlying?database?objects can be kept. It provides a layer of abstraction between physical and logical data,^[1]?and serves to allocate storage for all?DBMS?managed segments. (A database segment is a database object which occupies physical space such astable?data and?indexes.) Once created, a tablespace can be referred to by name when creating database segments.

Tablespaces specify only the database storage locations, not the logical database structure, or?database schema. For instance, different objects in the same schema may have different underlying tablespaces. Similarly, a tablespace may service segments for more than one schema. Sometimes it can be used to specify schema as to form a bond between logical and physical data.

By using tablespaces, an administrator can control the disk layout of an installation. A common use of tablespaces is to optimize performance. For example, a heavily used index can be placed on a fast?SCSI?disk. On the other hand, a database table which contains archived data that is rarely accessed could be stored on a less expensive but slower?IDE?disk.

While it is common for tablespaces to store their data in a filesystem file, a single file must be part of a single tablespace. Some?database management systemsallow tablespaces to be configured directly over operating-system device entries, called?raw devices, providing better performance by avoiding the OS filesystem overheads.

Oracle?stores data logically in tablespaces and physically in datafiles associated with the corresponding tablespace.

reference：http://en.wikipedia.org/wiki/Tablespace

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轉(zhuǎn)載于:https://www.cnblogs.com/davidwang456/p/3745921.html

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