Oracle参数解析(buffer_pool_keep) buffer_pool_keep

  前面介绍了Oracle的基本参数，从这节开始讲其他的参数，参数从v$parameter中提取

基本参数请看如下链接:
[http://www.zhaibibei.cn/oralce/oracle-parameter/](http://www.zhaibibei.cn/oralce/oracle-parameter/)

如无特殊说明数据库版本为11.2

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**buffer_pool_keep**




[image:355 size:orig]







1. 参数类型:整型
2. 语法:BUFFER_POOL_KEEP = {integer |(BUFFERS:integer, LRU_LATCHES:integer)}
2. 默认值:无
4. 修改:需改需要重启数据库



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**取值意义**

上图的参数截图为Oracle 9i


该参数指定Oracle实例中SGA中KEEP池中buffer的数量，也可以加上LRU latches的数量

该参数已被DB_KEEP_CACHE_SIZE参数取代，已经废弃

二者不能同时设定,否则会报错

举例:

```
BUFFER_POOL_KEEP = 5

BUFFER_POOL_KEEP = (BUFFERS:400, LRU_LATCHES:3)
```

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**实际截图：**


[image:356 size:orig]











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**参考连接**

[db_keep_cache_size](http://www.zhaibibei.cn/oralce/oracle-parameter/db_keep_cache_size/)

[https://docs.oracle.com/cd/A97630_01/server.920/a96536/ch118.htm](https://docs.oracle.com/cd/A97630_01/server.920/a96536/ch118.htm)



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下期参数

**buffer_pool_recycle**