北京两学一做网站,外贸网站功能,移动网站和定制网站,肇庆seo外包服务原来使用的数据库是oracle8.1.7.4 这次升级为oracle 10.0.2.4,在导入旧dmp时候明显能够感觉到导入数据比较快。1.可是在正式使用之后#xff0c;发现启用一个大表(使用了分区表)#xff0c;在update使用比较慢#xff0c;语句和索引建的和过去在oracle8i上是完全一致的。这…原来使用的数据库是oracle8.1.7.4 这次升级为oracle 10.0.2.4,在导入旧dmp时候明显能够感觉到导入数据比较快。1.可是在正式使用之后发现启用一个大表(使用了分区表)在update使用比较慢语句和索引建的和过去在oracle8i上是完全一致的。这是什么原因也重建过索引还是有这个问题。2.在使用db_links从该数据库向一个oracle8i传递数据时候很简单的过程就是这边读然后写入另一个数据库速度也特别慢这是怎么回事请高手指教。3.另alert.log出现如下Sat Aug 4 22:46:37 2012Thread 1 cannot allocate new log, sequence 819Checkpoint not completeCurrent log# 2 seq# 818 mem# 0: /u01/oradata/jf68/redo02.logSat Aug 4 22:46:41 2012Thread 1 advanced to log sequence 819 (LGWR switch)Current log# 3 seq# 819 mem# 0: /u01/oradata/jf68/redo03.logSat Aug 4 22:47:04 2012Thread 1 cannot allocate new log, sequence 820Checkpoint not completeCurrent log# 3 seq# 819 mem# 0: /u01/oradata/jf68/redo03.logSat Aug 4 22:47:06 2012Thread 1 advanced to log sequence 820 (LGWR switch)Current log# 1 seq# 820 mem# 0: /u01/oradata/jf68/redo01.logSat Aug 4 22:48:00 2012Thread 1 cannot allocate new log, sequence 821Checkpoint not completeCurrent log# 1 seq# 820 mem# 0: /u01/oradata/jf68/redo01.logSat Aug 4 22:48:08 2012Thread 1 advanced to log sequence 821 (LGWR switch)Current log# 2 seq# 821 mem# 0: /u01/oradata/jf68/redo02.logSun Aug 5 07:27:12 2012Thread 1 advanced to log sequence 822 (LGWR switch)Current log# 3 seq# 822 mem# 0: /u01/oradata/jf68/redo03.logSun Aug 5 07:27:50 2012Thread 1 advanced to log sequence 823 (LGWR switch)Current log# 1 seq# 823 mem# 0: /u01/oradata/jf68/redo01.logSun Aug 5 07:31:20 2012这是怎么回事
