Oracle基础知识-oracle常用命令

日志管理

1.forcing log switches

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1. sql> alter system switch logfile;

2.forcing checkpoints

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1. sql> alter system checkpoint;

3.adding online redo log groups

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1. sql> alter database add logfile [group 4]
2. sql> ('/disk3/log4a.rdo','/disk4/log4b.rdo') size 1m;

4.adding online redo log members

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1. sql> alter database add logfile member
2. sql> '/disk3/log1b.rdo' to group 1,
3. sql> '/disk4/log2b.rdo' to group 2;

5.changes the name of the online redo logfile

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1. sql> alter database rename file 'c:/oracle/oradata/oradb/redo01.log'
2. sql> to 'c:/oracle/oradata/redo01.log';

6.drop online redo log groups

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1. sql> alter database drop logfile group 3;

7.drop online redo log members

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1. sql> alter database drop logfile member 'c:/oracle/oradata/redo01.log';

8.clearing online redo log files

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1. sql> alter database clear [unarchived] logfile 'c:/oracle/log2a.rdo';

9.using logminer analyzing redo logfiles

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1. in the init.ora specify utl_file_dir = ' '
2. sql> execute dbms_logmnr_d.build('oradb.ora','c:\oracle\oradb\log');
3. sql> execute dbms_logmnr_add_logfile('c:\oracle\oradata\oradb\redo01.log', dbms_logmnr.new);
4. sql> execute dbms_logmnr.add_logfile('c:\oracle\oradata\oradb\redo02.log', dbms_logmnr.addfile);
5. sql> execute dbms_logmnr.start_logmnr(dictfilename=>'c:\oracle\oradb\log\oradb.ora');
6. sql> select * from vlogmnrcontents(vlogmnrcontents(vlogmnr_dictionary,vlogmnrparametersvlogmnrparametersvlogmnr_logs);
7. sql> execute dbms_logmnr.end_logmnr;

表空间管理
1.create tablespaces

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1. sql> create tablespace tablespace_name datafile 'c:\oracle\oradata\file1.dbf' size 100m,
2. sql> 'c:\oracle\oradata\file2.dbf' size 100m minimum extent 550k [logging/nologging]
3. sql> default storage (initial 500k next 500k maxextents 500 pctinccease 0)
4. sql> [online/offline] [permanent/temporary] [extent_management_clause]

2.locally managed tablespace

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1. sql> create tablespace user_data datafile 'c:\oracle\oradata\user_data01.dbf'
2. sql> size 500m extent management local uniform size 10m;

3.temporary tablespace

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1. sql> create temporary tablespace temp tempfile 'c:\oracle\oradata\temp01.dbf'
2. sql> size 500m extent management local uniform size 10m;

4.change the storage setting

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1. sql> alter tablespace app_data minimum extent 2m;
2. sql> alter tablespace app_data default storage(initial 2m next 2m maxextents 999);

5.taking tablespace offline or online

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1. sql> alter tablespace app_data offline;
2. sql> alter tablespace app_data online;

6.read_only tablespace

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1. sql> alter tablespace app_data read only|write;

7.droping tablespace

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1. sql> drop tablespace app_data including contents;

8.enableing automatic extension of data files

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1. sql> alter tablespace app_data add datafile 'c:\oracle\oradata\app_data01.dbf' size 200m
2. sql> autoextend on next 10m maxsize 500m;

9.change the size fo data files manually

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1. sql> alter database datafile 'c:\oracle\oradata\app_data.dbf' resize 200m;

10.Moving data files: alter tablespace

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1. sql> alter tablespace app_data rename datafile 'c:\oracle\oradata\app_data.dbf'
2. sql> to 'c:\oracle\app_data.dbf';

11.moving data files:alter database

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1. sql> alter database rename file 'c:\oracle\oradata\app_data.dbf'
2. sql> to 'c:\oracle\app_data.dbf';

本文转自博客园xingoo的博客，原文链接：Oracle基础知识-oracle常用命令，如需转载请自行联系原博主。