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Overview of the Program Global Areas (97)

原创 网络安全 作者:tsinglee 时间:2007-10-25 11:05:25 0 删除 编辑
A program global area (PGA) is a memory region that contains data and control
information for a server process. It is a nonshared memory created by Oracle when a
server process is started. Access to it is exclusive to that server process and is read and
written only by Oracle code acting on behalf of it. The total PGA memory allocated by
each server process attached to an Oracle instance is also referred to as the aggregated
PGA memory allocated by the instance.

1. 是指包含服务的数据和控制信息的内存区域
2. 在服务器进程启动时由Oracle创建的非空闲的内存段
3. 总的pga内存大小由Oracle实例相关联的服务器进程分配的内存合计[@more@]

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