1. 查看现有快照
SQL> awr list snap;
SNAP_ID DBID BEGIN_INTERVAL_TIME END_INTERVAL_TIME FLUSH_LEVEL
793 1475623016 05-SEP-25 04.28.49.548000000 AM 05-SEP-25 04.38.58.339000000 AM TYPICAL
2. 创建新快照命令
SQL> awr create snapshot
Snapshot taken, ID: 794
SQL> awr list snap;
SNAP_ID DBID BEGIN_INTERVAL_TIME END_INTERVAL_TIME FLUSH_LEVEL
793 1475623016 05-SEP-25 04.28.49.548000000 AM 05-SEP-25 04.38.58.339000000 AM TYPICAL
794 1475623016 05-SEP-25 05.32.53.656000000 AM 05-SEP-25 05.58.51.296000000 AM TYPICAL
SQL> awr create snapshot
Snapshot taken, ID: 795
3.再次查看现有快照
SQL> awr list snap;
SNAP_ID DBID BEGIN_INTERVAL_TIME END_INTERVAL_TIME FLUSH_LEVEL
793 1475623016 05-SEP-25 04.28.49.548000000 AM 05-SEP-25 04.38.58.339000000 AM TYPICAL
794 1475623016 05-SEP-25 05.32.53.656000000 AM 05-SEP-25 05.58.51.296000000 AM TYPICAL
795 1475623016 05-SEP-25 05.58.51.296000000 AM 05-SEP-25 06.01.01.692000000 AM TYPICAL
4**. 生成awr报告**
生成快照为794-795的HTML格式awr报告
SQL> awr create html 794 795
Report written to: awr_FREE_2025-09-05-05.32.53_2025-09-05-06.01.01.html
当然用原来老的方式也还是可以的
SQL> @?/rdbms/admin/awrrpt
不过用新的命令方式相对来说比较简便一些，感觉少了很多交互，输出的结果内容还是一样的。
