来自于:http://blog.csdn.net/jaguarcts/archive/2004/08/24/83741.aspx
数据文件的I/O分布select df.name,phyrds,phywrts,phyblkrd,phyblkwrt,singleblkrds,readtim,writetim from v$filestat fs,v$dbfile df where fs.file#=df.file# order by df.name;
原文转自:http://www.ltesting.net