Oracle：OMF
Oracle管理的文件，即：OMF。
OMF可以管理Oracle中的以下几种文件：表空间、联机日志文件、控制文件。
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SQL> show parameter db_create NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_create_file_dest string db_create_online_log_dest_1 string db_create_online_log_dest_2 string db_create_online_log_dest_3 string db_create_online_log_dest_4 string db_create_online_log_dest_5 string SQL> SQL> show parameter db_recovery_file_dest NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_recovery_file_dest string /u01/app/oracle/fast_recovery_ area db_recovery_file_dest_size big integer 4560M SQL> SQL> select file_name from dba_data_files; FILE_NAME -------------------------------------------------------------------------------- /ora_data/allah/system01.dbf /ora_data/allah/sysaux01.dbf /ora_data/allah/users01.dbf /ora_data/allah/undotbs01.dbf SQL> SQL> select tablespace_name from dba_tablespaces; TABLESPACE_NAME ------------------------------ SYSTEM SYSAUX UNDOTBS1 TEMP USERS SQL> SQL> alter system set db_create_file_dest='/ora_data'; System altered. SQL> show parameter db_create_file_dest NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_create_file_dest string /ora_data SQL> SQL> create tablespace allah; Tablespace created. SQL> select file_name from dba_data_files; FILE_NAME -------------------------------------------------------------------------------- /ora_data/allah/system01.dbf /ora_data/allah/sysaux01.dbf /ora_data/allah/undotbs01.dbf /ora_data/allah/users01.dbf /ora_data/ALLAH/datafile/o1_mf_allah_b5jmqm12_.dbf SQL> !du -sh /ora_data/ALLAH/datafile/* 101M /ora_data/ALLAH/datafile/o1_mf_allah_b5jmqm12_.dbf SQL> |
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