123 lines
No EOL
2.5 KiB
Markdown
123 lines
No EOL
2.5 KiB
Markdown
## 查看归档日志使用情况
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```sql
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sqlplus / as sysdba
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select * from v$recovery_file_dest;
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select * from V$FLASH_RECOVERY_AREA_USAGE;
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```
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## 查询日志目录位置
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```sql
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show parameter recover;
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```
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## 计算fast_recovery_area已经占用的空间
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```sql
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select sum(percent_space_used)*3/100 from v$flash_recovery_area_usage;
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```
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## 修改fast_recovery_aread的空间
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```sql
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ALTER SYSTEM SET DB_RECOVERY_FILE_DEST_SIZE=8g;
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```
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## rman清理日志
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```sql
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rman target /
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```
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## 删除过期归档日志
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```sql
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crosscheck archivelog all;
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delete expired archivelog all;
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```
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## 删除昨天以前的归档日志
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```sql
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delete noprompt archivelog until time 'sysdate-1';
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```
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# 其他
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## 显示rman配置
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```sql
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show all;
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```
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## 报告目标数据库的物理结构
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```sql
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report schema;
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```
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## 报告陈旧备份
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```sql
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report obsolete;
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```
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## 报告不可恢复的数据文件
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```sql
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report unrecoverable;
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```
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## 列出备份信息
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```sql
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list backup;
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list backup summary;
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list backup of database;
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list backup of tablespace table_name;
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list backup of controlfile;
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list backup of spfile;
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list backupset id;
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```
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## 校验备份
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```sql
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crosscheck backup;
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crosscheck backup of database;
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crosscheck backup of tablespace system;
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crosscheck backup of controlfile;
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crosscheck backup of spfile;
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crosscheck backup of archivelog all;
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```
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## 校验没有备份过的归档日志
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```sql
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crosscheck archivelog all;
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delete noprompt expired archivelog all;
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```
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## 刪除所有的Archivelog files
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```sql
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delete archivelog all;
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```
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## 強制刪除昨天以前的archivelog files
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```sql
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delete force archivelog until time 'sysdate -1';
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delete noprompt force archivelog until time 'sysdate -2';
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```
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## 刪除所有过期的Archivelog files
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```sql
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delete expired archivelog all;
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```
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## 删除陈旧备份
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```sql
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delete obsolete;
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delete noprompt obsolete;
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```
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## 删除所有expired的备份（包括归档日志、控制文件、备份聚）
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```sql
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delete expired backup;
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```
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## 删除所有备份
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```sql
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delete backup;
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```
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## 改为长期备份
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```sql
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change backupset id unavailable;
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change backupset id keep forever logs;
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change backupset id keep until time 'sysdate+30' logs;
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change backupset id nokeep;
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```
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## 改为基于时间的备份
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```sql
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configure retention policy to recovery window of 30 days;
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```
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## 改为基于冗余数量的备份
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```sql
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configure retention policy to redundancy n ;
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```
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## 取消备份保留策略
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```sql
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configure retention policy to none;
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```
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## 设置归档日志存放在其它位置
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```sql
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set archivelog destination to 'e: emp';
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``` |