Multiple threads may need to access a Shared database, for instance, or make updates to a set of system variables.
多个执行绪可能需要存取共用资料库，或是对一组系统变数进行更新。
A resource Shared database of foreign trade will be built in order to promote communications and studies among the members.
为了加强彼此之间的交流和学习，准备建立外贸资源共享数据库。
In network computing environments, as large number of concurrent user access Shared database, the database servers often become performance bottlenecks.
在网络计算环境下，当大量客户同时存取数据库资源，数据库服务器常成为性能瓶颈。
Many libraries will help you with locally supplied information about business management shared through chambers of commerce and government agencies, and they will offer printing, faxing and database services you need.
许多图书馆会为你提供由本地商会及政府机构共享的商业管理信息，同时提供你所需要的打印、传真及数据库服务。
Limit: In this configuration, the limit for database Shared memory is 2gb, or 8 segments.
限制：在此配置中，对于数据库共享内存的限制是2gb或8个段。
Application group Shared memory set is not listed because it is allocated from the database Shared memory set.
应用程序组共享内存集没有列出，因为它是从数据库共享内存集中分配的。
So far we have discussed the instance Shared memory, the database Shared memory, the application group Shared memory and the agent private memory.
至此，我们已经讨论了实例共享内存、数据库共享内存和应用程序组共享内存以及代理私有内存。
This effectively frees up one segment for database Shared memory.
这将有效地为数据库共享内存一个段。
Since the end address of the instance Shared memory is not fixed, the starting address for the database Shared memory is not fixed either.
因为实例共享内存的结束地址不固定，所以数据库共享内存的起始地址也是不固定的。
This is well under the 1.75gb Shared memory limit, and each database Shared memory segment can safely map contiguously to a quadrant.
这低于1.75GB的共享内存限制，并且每个数据库共享内存段可以安全地连续映射到一个象限。
These limits dictate how we configure each of the memory pools in the database shared memory set.
这些限制规定了我们该如何配置数据库共享内存集中的每个内存池。
This is much less then any database Shared memory set available to other UNIX platforms.
这比其他UNIX平台上可用的任何数据库共享内存集要少得多。
Note this amount includes both the instance Shared memory and database Shared memory, and their memory segments must be contiguous.
注意这个数量同时还包括实例共享内存和数据库共享内存，并且它们的内存段必须是邻接的。
In addition to the above parameters, there is another parameter which also affects the amount of database Shared memory.
除了上述参数以外，还有一个参数也会影响数据库共享内存的数量。
If ESTORE is enabled, then it will take another segment away from the database Shared memory.
如果启用了ESTORE，那么还要从数据库共享内存中拿出另一个段。
This leaves more room for other memory sets such as the database Shared memory.
这样就将更多的空间留给了其他内存集，例如数据库共享内存。
If UDB is configured to create a database Shared memory set which is larger than this, the request will fail.
如果将UDB配置为创建一个大于该值的数据库共享内存集，则请求将遭到失败。
This article explains instance Shared memory and database Shared memory.
本文将介绍实例共享内存和数据库共享内存。
Though FCM communication becomes faster, it reduces the database Shared memory by one segment.
虽然FCM通信变得更快，但是它也令数据库共享内存减少了一个段。
Following the instance Shared memory is the database Shared memory.
紧接着实例共享内存的是数据库共享内存。
There is one database Shared memory set per database.
每个数据库有一个数据库共享内存集。
This forces DB2 to use segment E for local connections, thus freeing one segment for database shared memory.
这样便迫使DB2将段E用于本地连接，从而为数据库共享内存空出一个段。
Note that the database Shared memory calculations show that we are still within available 1gb Shared memory limit.
注意，对数据库共享内存的计算表明，我们仍然没有超出1gb可用共享内存的限制。
Figure 2 shows the various memory pools within the database Shared memory set.
图2展示了数据库共享内存集内的各种内存池。
However, keep in mind that buffer pools are part of the database Shared memory set.
但是请记住，缓冲池是数据库共享内存集中的一部分。
The instance Shared memory and database Shared memory combined is around 3.7gb.
实例共享内存和数据库共享内存合起来大约是3.7GB。
Therefore, we can only allocate up to 1gb (physical RAM available) of Shared memory for database use.
因此，我们只能分配最多1gb(可用的物理ram)的共享内存给数据库使用。
Database Shared memory is allocated when a database is activated or connected to for the first time.
数据库共享内存是在数据库被激活或者第一次被连接上的时候分配的。
Database Shared memory: This refers to the database global memory, which is allocated when the database is activated or connected to for the first time.
数据库共享内存：这是数据库全局内存，是在激活数据库或者第一次连接到数据库时分配的。
By default, the database Shared memory is 1.75gb minus the Stack.
在默认情况下，数据库共享内存的大小是1.75GB减去堆栈大小。
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