课程第24次

botang

1. select d.LOG_MODE, d.FLASHBACK_ON
   
2. from v_$database d;
   
3. 
   
4. select  * from v$flashback_database_log;
   
5. 
   
6. select  * from v$flashback_database_logfile;
   
7. 
   
8. select  * from v$flashback_database_stat;
   
9. 
   
10. alter database flashback on;

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