摘要： select df.name 文件名, fs.phyrds 读次数, fs.phywrts 写次数, (fs.readtim / decode(fs.phyrds, 0, -1, fs.phyrds)) 读时间, (fs.writetim / decode(fs.phywrts, 0, -1, fs.phywrts)) 写时间 from v$datafile df, v$filestat fs where df.file# = fs.file# order by df.name 阅读全文