一.开启方法 For Java 1.4, 5, 6, 7, 8 pass this JVM argument to your application: -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<file-path> For Java 9, pass the JVM argument: -Xlog:gc*:file=<file-path>file-path: is the location where GC log fil…
查看是否开启闪回 SQL> select flashback_on from v$database; FLASHBACK_ON ------------------ NO 查看是否配置了db_recover_file_dest SQL> show parameter db_recovery NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_reco…