https://blog.youkuaiyun.com/tiger201zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/tiger201/article/details/77104https://blog.youkuaiyun.com/tiger201/article/details/77104tiger201Tue, 17 Aug 2004 15:21:00 +0800https://blog.youkuaiyun.com/tiger201/article/details/77092https://blog.youkuaiyun.com/tiger201/article/details/77092tiger201Tue, 17 Aug 2004 15:13:00 +0800 alter system switch logfile;2.forcing checkpoints sql> alter system checkpoint; 3.adding online redo log groups sql> alter database add logfile [group 4] sql]]>https://blog.youkuaiyun.com/tiger201/article/details/77090https://blog.youkuaiyun.com/tiger201/article/details/77090tiger201Tue, 17 Aug 2004 15:11:00 +0800https://blog.youkuaiyun.com/tiger201/article/details/77087https://blog.youkuaiyun.com/tiger201/article/details/77087tiger201Tue, 17 Aug 2004 15:10:00 +0800https://blog.youkuaiyun.com/tiger201/article/details/77082https://blog.youkuaiyun.com/tiger201/article/details/77082tiger201Tue, 17 Aug 2004 15:06:00 +0800