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orale 核心层(Kernel Layers)
读《Oracle8i Internal Services for Waits, Latches, Locks,and Memory》记录一下oracle中打的层次图 对照Tanel Poder Oracle internal process flow 更加深刻的理解
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Chapter 3 latches--01
LatchesThere are numerous data structures in Oracle's System Global Area (SGA) that need to beaccessed concurrently by many different database processes. It is essential that only one process be able ...
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oracle time model相关的概念
time model 针对 oracle database 是一个非常好的特性，它能准确的反映oracle database 在某个时间内的开销。学习oracle database 必须了解其相关的概念。以下是官方文档中的定义。DB Time：Amount of elaps...
