Oracle DBA命令参考——alter database

alter database：修改数据文件alter database datafile 4 offline;alter database datafile '/opt/oracle/datafile/users01.dbf' offline;alter database datafile '/opt/oracle/datafile/users01.dbf' resize 100M;alter database datafile '/opt/oracle/datafile/users01.dbf' autoextend on next 100M maxsize 1000M;alter database datafile 4 end backup;

alter database：修改临时文件（tempfile）alter database tempfile 4 resize 100M;alter database tempfile 4 autoextend on next 100M maxsize 1000M;alter database tempfile 4 drop including datafiles;alter database tempfile 4 offline;

alter database：归档日志（archivelog）模式命令alter database archivelog;alter database noarchivelog;alter database force logging;alter database clear logfile '/opt/oracle/logfiles/redo01.rdo';alter database clear unarchived logfile '/opt/oracle/logfiles/redo01.rdo';alter database add supplemental log data;alter database add supplemental log data (primary key,unique);alter database drop supplemental log data;

alter database：控制文件操作alter database backup controlfile to trace;alter database backup controlfile to trace as '/opt/oracle/logfile_backup/backup_logfile.trc' reuse resetlogs;alter database backup controlfile to '/opt/oracle/logfile_backup/backup_logfile.ctl';

alter database：创建数据文件alter database create datafile '/opt/oracle/datafile/users01.dbf' as '/opt/oracle/datafile/users01.dbf';alter database create datafile 4 as '/opt/oracle/datafile/users01.dbf';alter database create datafile '/opt/oracle/datafile/users01.dbf' as new;

alter database：数据文件脱机/联机参见“alter database：修改数据库文件”

alter database：日志文件命令alter database add logfile group 2 ('/opt/oracle/logfiles/redo02a.rdo','/opt/oracle/logfile/redo02b.rdo') size 300M reuse;alter database add logfile member '/opt/oracle/logfiles/redo02c.rdo' to gourp 2alter database add logfile thread 3 group 2 ('/opt/oracle/logfiles/redo02a.rdo','/opt/oracle/logfiles/redo02b.rdo') size 300M reuse;alter database drop logfile group 3alter database drop logfile member '/opt/oracle/logfiles/redo02b.rdo';

alter database：安装和打开数据库alter database mount;alter database open;

alter database：移动或重命名数据库文件或联机重做日志注意：数据库必须已经安装才能重命名或移动联机重做日志。数据库必须已经安装或数据文件处于脱机状态时，才能移动数据库中的数据文件。alter database rename file '/ora/datafile/oldfile.dbf' to '/ora/datafile/newfile.dbf';

alter database：以只读方式打开数据库alter database open read only;

alter database：使用resetlogs打开数据alter database open resetlogs;

alter database：恢复数据库对数据库的恢复，建议使用recover命令代替。