A shared SQL area is always in the shared pool.Oracle allocates memoryfromthe shared pool when a SQL statement is parsed; the size of this memory depends on the complexity of the statement.If a SQL statement requires a new shared SQL area and the entire shared pool has already been alloca...
存储过程、包、函数等)以及它们转换后能够被Oracle执行的代码等,这部分信息可以通过v$librarycache视图查询;至于DataDictionary Cache主要用于存放数据字典信息,包括表、视图等对象的结构信息,用户以及对象权限信息,这部分信息相对稳定,在Shared Pool中通过字典缓存单独存放,字典缓存的内容是按行(Row)存储的(其他数据...
A shared SQL area is always in the shared pool.Oracle allocates memory from the shared pool when a SQL statement is parsed; the size of this memory depends on the complexity of the statement.If a SQL statement requires a new shared SQL area and the entire shared pool has already been al...
DBMS_SHARED_POOL provides access to the shared pool, which is the shared memory area where cursors and PL/SQL objects are stored. DBMS_SHARED_POOL enables you to display the sizes of objects in the shared pool, and mark them for keeping or unkeeping in order to reduce memory fragmentation...
Shared Pool主要由两部分组成,一部分是库缓存(Library Cahce),另一部分是数据字典缓存(Data Dictionary Cache)。Library Cache主要用于存储SQL语句、SQL语句相关的解析树、执行计划、PL/SQL程序块(包括匿名程序块、存储过程、包、函数等)以及它们转换后能够被Oracle执行的代码等,这部分信息可以通过v$librarycache视图查询...
一. Shared Pool 概述 在之前的blog对Oracle 的内存架构也做了一个概述,参考: Oracle 内存 架构 详解 在网上搜到一篇介绍shared pool 非常详细的pdf资料。 原文链接以找不到,但还是要感谢作者Kamus的辛勤劳动。 结合Kamus 的pdf和csdn 网友的blog,重新整理了一下,链接如下: ...
To display the data for a particular group, enter the group name in the Filter by Group box. To return to the default search, All Groups, remove the group name from the search box and click the button next to it. The following table describes the usage pattern statistics for shared lin...
Oracle Database Orbital Palo Alto Networks Peering Policy Policy Insights PostgreSQL Power BI Dedicated Power BI Embedded Private DNS Purview Qumulo Quota Recovery Services Redis Relay Reservations Resource Connector Resource Graph Resource Health Resource Mover Resources Resources Subscriptions Resources-Profile...
KnownUsageUnit KnownUseHubGateway KnownVerbosityLevel KnownVirtualNetworkEncryptionEnforcement KnownVirtualNetworkGatewayConnectionMode KnownVirtualNetworkGatewayConnectionProtocol KnownVirtualNetworkGatewayConnectionStatus KnownVirtualNetworkGatewayConnectionType KnownVirtualNetworkGatewaySkuName KnownVirtualNetworkGatewaySkuTier Know...
第6 章 Buffer Cache 与 Shared Pool 原理 Buffer Cache 与 Shared Pool 是 SGA 中的最重要和最复杂的两个部分,在此我们拿出一点 篇幅来对 Buffer Cache 和 Shared Pool 进行一点深入探讨. 6.1 Buffer Cache 原理 Buffer Cache 是 Oracle SGA 中一个重要部分,通常的数据访问和修改都需要通过 Buffer Cache 来...