alter system checkpoint;
alter system archive log all;
alter system archive log current
alter system switch logfile;
麻烦高手给我详细点说说他们的区别和联系，谢谢！
alter system archive log all;
alter system archive log current
alter system switch logfile;
麻烦高手给我详细点说说他们的区别和联系，谢谢！
全局检查点alter system archive log all
alter system archive log current
手工归档联机日志alter system switch logfile;
切换日志文件组同时增量检查点
alter system archive log current
顾名思义
前一个归档所有日志
后一个归档当前使用日志