Create a new tablespace in Oracle

Select tablespace_name, file_name, ceil (bytes/1024/1024) mbfrom dba_data_files order by 1; create tablespace tanzugan logging datafile 'H: \ APP \ ZUGANTAN \ ORADATA \ ORCL2012 \ tanzugan. dbf 'size 100 m reuse extent management local segment space management auto; www.2cto.com --- view tablespace Information select * from dba_data_files order by 1; ------ interspersed order by 1 order by2 order by 1 sort order by the first column By 2 is sorted by the second column. If only two columns are written as order by 3, an error is returned. ------------------- Add the new data file alter tablespace ts1 add datafile 'd: \ ORACLE \ ORADATA \ Ora10 \ ts1.2 'size 2 m; the data file can only be added and cannot be deleted unless the tablespace is deleted. However, in the 10 Gb database version, you can delete ---------------- Delete the tablespace data file alter tablespace ts1 drop datafile 'd: \ ORACLE \ ORADATA \ ORA10 \ TS1.2 '. The tablespace can increase the size of the data file, you can also narrow down the Alter database datafile '..... 'Resize 100 m; automatically extended select FILE_NAME, AUTOEXTENSIBLE, MAXBLOCKS, INCREMENT_BY from dba_data_files; changed to automatically extended alter database datafile 'd: \ ORACLE \ ORADATA \ O10 \ TS1.1 'autoextend on next 1 m maxsize 100 m; changed to manual extension of alter database datafile 'd: \ ORACLE \ ORADATA \ O10 \ TS1.1 'autoextend off; tablespace read-only Alter tablespace users read only; Verify select TABLESPACE_NAME, STATUS from dba_tablespaces; read and write Alter tablespace users read Write; the tables in the read-only tablespace cannot be dml, but can be dropped. Because the drop operation is system tablespace, the SYSTEM tablespace cannot be read-only. Www.2cto.com Offline tablespace alter tablespace users offline; Verify select TABLESPACE_NAME, STATUS from dba_tablespaces; online alter tablespace users online; only complete data files can be online. If incomplete, restore the table. Restore the consistency before online; the user can access the author tanzugan only when the file is online