雨之殇

摘要： 第一章：日志管理1.forcinglog switchessql>alter system switch logfile;2.forcingcheckpointssql>alter system checkpoint;3.addingonline redo log groupssql>alter database add logfile [group 4]sql>('/disk3/log4a.rdo','/disk4/log4b.rdo') size 1m;4.addingonline redo log memberssql>alt 阅读全文