成本库是对各种成本的简单组合。
这一公式可以应用于任何一个成本库。
为了将各种成本分配计入各种产品，成本会计人员必须为所有作业和相应的成本库计算分配率。
For assigning costs to products, cost accountants must calculate the cost rates of all activities and corresponding cost pools.
一旦作业和成本库被确定了，我们就应当接着选择确定成本动因以便将间接费用分配到各种产品之中。
Once the activities and COST pools are identified, we should choose the COST drivers to assign the overhead to products.
这增加了数据库与应用之间的通信成本。
This increases the cost of communication between the database and the application.
如果他们的决定是错误的并且选择了新的库，则这一工作在成本上将不会有很大区别，因为将需要再次重新编写代码。
If their decision is wrong and a new library is chosen, this effort won't make a significant difference in cost, because the code will need to be rewritten again.
这种动态的配置功能会显著减少需要创建的定制映像的数量，大大降低管理虚拟映像库的成本。
This dynamic configuration capability significantly reduces the number of custom images that you need to create, drastically reducing the cost of managing your virtual image library.
代码库的可维护性直接影响着软件的整个成本。
The maintainability of a code base directly affects the overall cost of software.
但其成本太高，只有像库欣高中或很好的私立大学才能负担得起——而我们其他学校只好把图书扔进垃圾桶。
But the cost is so high that only places like the Cushing Academy or well endowed universities can afford it -the rest of us just end up with books in the dumpster.
这增加了数据库与应用之间的通信成本。
This increases the communication between the database and the application.
数据库持久性的缺点在于数据库的成本，特别是存储在数据库中的会话数据本身应该具有高可用性的情况下更是如此。
The disadvantage of database persistence is the cost of the database, particularly if the session data stored in the database should itself be highly available.
这种环境旨在提高数据生命周期内所有角色的生产力，并帮助降低管理数据库应用程序的复杂性和成本。
This environment is designed to increase productivity for all roles throughout the data life cycle and to help reduce the complexity and cost of managing database applications.
该特性是数据库服务器附带的，没有额外成本。
This feature is included with the database server at no extra cost.
在一个表上定义的每个额外索引都将增加您的数据库关联成本。
Every additional index that you define on a table adds to the costs associated with your database.
例如，提供者可以通过在数据库上安装多个数据库(每个客户一个数据库)减少成本。
For example, the provider can cut costs by installing multiple databases on a server with one database per customer.
完成这些步骤之后，就不必将数据存储到活动数据库中，从而提供更大的灵活性，并且节省了将数据储存到数据库所需的时间和资源成本。
By doing so, there is no need to restore the data into a live database, which provides greater flexibility and saves time and cost on resources to restore the data to a database.
然而进程跳跃到数据库的成本依然很高，因此数据层的性能是您在优化代码时首先要考虑的问题。
However, the cost of process hopping to the database is still high, thus performance on the data tier is the first place to look when optimizing your code.
如果连接列上有一个索引，那么其成本会相当低；否则，数据库服务器就必须对所有表(外部和内部表)执行表扫描。
If there is an index on the join column, the costs will be significantly less; otherwise the database server must perform table scans for all tables, both outer and inner tables.
减少资产管理存储库中的复用成本对于存储库的寿命和价值是至关重要的。
Reducing the reuse costs in an asset management repository is critical to the longevity and value of the repository.
成本可以积累，且许多应用程序不需要专用数据库服务器。
The cost could add up, and many applications do not need a dedicated database server.
然而，这种方法的将会导致数据库的执行和维护非常复杂，而且成本较高。
However, this solution makes the implementation and maintenance of the databases complex and costly.
正如您想象的那样，如果数据库比较大的话，这可能是一项成本高昂的操作。
As you can imagine, this could become a very expensive operation if the database is large.
DAOS可显著降低增量备份成本，因为DAOS储存库将较大的数据块放在单独的、稳定的文件中。
DAOS enables a large reduction in incremental backup costs because the DAOS repository isolates large blocks of data into separate, unchanging files.
要完成本教程，读者应该熟悉数据库，但是不需要熟悉数据挖掘的概念。
To complete this tutorial, you should be familiar with databases. You do not need to be familiar with data mining concepts.
在当今的经济环境中，数据库性能和成本优化的重要性和价值怎么强调也不过分。
In the current economic climate, the immediate need for and value of database performance cost optimization and tuning cannot be overstated.
如果预期成本很高，他们会调整语句和数据库的物理设计(常常会添加索引)，从而降低预期成本。
If the anticipated cost is high, they tune the statement and the physical design of the database to reduce its anticipated cost, often by adding an index.
它不能减小数据库并发性负担，需要的技术通常成本高昂，无法实施。
It doesn't reduce the burden of database concurrency and the required technologies are often cost prohibitive.
基于数据库的复制的缺点是性能成本——数据库事务是昂贵的。
The downside of database-backed replication is the performance cost — database transactions are expensive.
像其他低成本的餐厅连锁店一样，库那以低价格和追求的高效率抵抗住了人们外出用餐下降的趋势。
Along with other low-cost restaurant chains, Kura has bucked the dining-out slump with low prices and a dogged pursuit of efficiency.
一个定制化业务应用提供商，最近推出了一款新的服务，为打算缩减维护管理成本的企业提供数据库托管。
LongJump, a provider of customizable business application, has introduced a new service to provide database hosting to companies that are looking to reduce maintenance and administration costs.
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