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Oracle 10G进程体系学习笔记

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Jun 07, 2016 pm 04:53 PM

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一则Oracle 10G进程体系学习笔记：由于Oracle 10G 是一个多进程多线程的数据库，而SQL Server是一个单进程多线程的数据库 Ora

一则Oracle 10G进程体系学习笔记：

由于Oracle 10G 是一个多进程多线程的数据库，而SQL Server是一个单进程多线程的数据库

　 Oracle 实例主要有3类进程

　　1，，服务器进程

　　2，后台进程

　　3，从属进程

　　服务器进程：分为专有服务器进程和共享服务器进程

　　后台进程：

　　1，PMON(进程监视器)

　　2，SMON(系统监视器)

　　3，RECO(分布式数据库恢复)

　　4，CKPT(检查点进程)

　　5，DBWn(数据写入器)

　　6，LGWr(日志写入器)

　　7，ARCn(归档进程)

　　从属进程：

　　I/O从属进程和并行查询进程

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