归档于 八月 25th, 2009
dba_tables,user_tables,all_tables三个视图中都有这么两列:cache,buffer_pool
这两列有一些相同的地方,都是控制表在buffer cache中的行为的。但是他们还是不同的。
cache控制一个表在buffer cache中LRU链的位置,具体来说:当对一[......]
write list:holds dirty buffers, which contain data that has been modified but has not yet been written to disk.
List recently used list(LRU list):hold[......]











