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Oracle10g/11g RAC数据库中的Master实例、Owner实例和Past Image的概念PART3

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Release： 2016-06-07 17:36:56
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实验第29步：然后，再在实例1上执行：selectcount(*)fromt04209_uname;selectsum(uvalue)fromt04209_uname;selectavg(uvalue)fromt04209_uname;selectmax(uvalue





Master128Remaster（ObjectAffinity and Dynamic Remastering引起）或手工Remaster（oradebug命令），整个对象将作为master单元而不进行多个实例分布式地分段master：即不管表多大，它的数据块都由同一个实例master。另外，任何时候undo段整段必需由同一个实例master。


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