Oracle 数据库服务器的巡检 命令
时间: 2023-10-12 10:13:06 浏览: 99
ORACLE数据库巡检模板
以下是一些常见的 Oracle 数据库服务器巡检命令:
1. 查看数据库版本:
```sql
SELECT * FROM v$version;
```
2. 查看数据库启动时间:
```sql
SELECT startup_time FROM v$instance;
```
3. 查看数据库大小和空间使用情况:
```sql
SELECT tablespace_name, sum(bytes)/1024/1024 AS "SIZE (MB)", sum(maxbytes)/1024/1024 AS "MAXSIZE (MB)", sum(bytes)/sum(maxbytes) * 100 AS "PERCENT USED" FROM dba_data_files GROUP BY tablespace_name;
```
4. 查看数据库连接数:
```sql
SELECT count(*) FROM v$session;
```
5. 查看数据库缓存情况:
```sql
SELECT name, sum(gets) as "Gets", sum(misses) as "Misses", sum(reloads) as "Reloads" FROM v$buffer_pool_statistics GROUP BY name;
```
6. 查看数据库锁情况:
```sql
SELECT sid, type, lmode, request FROM v$lock WHERE request > 0;
```
7. 查看数据库日志文件情况:
```sql
SELECT group#, status, type, member FROM v$logfile;
```
8. 查看数据库备份情况:
```sql
SELECT sequence#, first_time, next_time, status FROM v$archived_log ORDER BY sequence#;
```
9. 查看数据库性能指标:
```sql
SELECT name, value FROM v$sysstat WHERE name LIKE 'parse count%' OR name LIKE 'execute count%';
```
以上命令可以提供一些基本的数据库状态信息,但并不是全部。在进行数据库巡检时,最好根据具体情况选择适合的命令进行查询。
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