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ORA01157 cannot identifylock data file 5 see DBWR trace file

在学习过程中,有以下几个问题希望能得到各位高人的指教: 1) alert filetrace file,是全局设定还是需要为每一个session 单独设定? 2)打开了alert 和trace 开关以后,是否会影响系统的性能?如果有,主要的影响在哪些方面? 多谢!!!!!!!!!!!!!

by 歌者 - Oracle - 2003-12-30 11:10:12 阅读(1312) 回复(3)

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