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Oracle备份与恢复-李佳良的博客

 6 years ago
source link: http://blog.51cto.com/13555423/2096097
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oracle中的故障分为以下4种类型.1)语句故障语句故障时在执行sql语句过程中发生的逻辑故障。例如:向表中插入违反约束的无效数据,或者表空间没有空间了导致无法插入数据等。这时,应用人员或者DBA根据情况进行相应处理及可。2)用户进程故障当用户程序出错而无法访问oracle数据库时,就会发生用户进程故障,原因是异常断开连接或终止进程,如果网络不通,客户端计算机以外重新启动,这些故障会导致用户进程

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