使用PAM在R的事务处理数据的聚类?
MySQL数据库服务器:下载本文所使用的开源事务处理数据库。
The MySQL database server: Download the open source transactional database used in this article.
您是否有一些对这样数据的正确事务处理的解决方法?
Do you any solution to correct transaction handling with that much data?
带着这样的思想,我们可以避免在事务处理一开始就锁定数据。
With this kind of thinking, locking the data in the beginning of the transaction can be avoided.
我希望这一系列介绍事务的文章为您提供了所需知识,帮助您从事务处理的角度改进应用程序和数据的健壮性。
I hope these transaction articles have provided you with the knowledge needed to improve the robustness of your applications and data from a transaction-processing standpoint.
系统的可量测性,显示了平均事务处理和用户混合情况下应答次数的变化,但是数据的存储总量是变化的。
The data scalability of the system, showing how response times vary under an average transaction and user mix, but with varying amounts of data in storage.
同步复制使用分布式事务处理管理复制数据操作,(几乎)同时的作为工作单点,将操作应用到所有复件。
Synchronous replication copies data operations using distributed transaction management that applies operations to all copies (almost) simultaneously as a single unit of work.
测试人员经常需要用不同的数据多次执行同样的事务处理。
Testers often need to perform the same transactions many times with different data.
许多系统不仅对事务处理的工作量很敏感,对数据的容量也很敏感。
Many systems are sensitive not only to transaction workload but also data volumes.
传统上,BI数据仓库从源系统(常常是操作性联机事务处理[oltp]系统)接收数据,但是从不向它们返回数据。
Traditionally, a BI data warehouse receives data from source systems (usually the operational online transaction processing [OLTP] systems) but never provides data back to them.
我们着眼于传统的事务处理和通过在动作集合上强制实行all-or-none语义来在许多动作间保持数据完整性的方法。
We looked at classical transaction processing and how it enables data integrity across a number of actions by forcing an all-or-none semantic to the set of actions.
这是一个在线事务处理(online transaction processing,OLTP)系统,有500MB数据。
This is an online transaction processing (OLTP) system with about 500 BM of data.
数据仓库与事务处理的对比。
正如先前描述的一样,悲观方法的意图是确保装入实体bean的数据在整个事务处理持续时间内处于锁定状态。
As described previously, the intent of the pessimistic approach is to ensure that the data loaded into the entity bean is locked during the entire duration of a transaction.
full模式视图现还可执行异步事务处理,以检索视图数据。
Full-mode views now also perform asynchronous transactions to retrieve view data.
某些数据库类型和配置可以处理一些这种工作,但在大多数情况下,解决方案最终归结为如何设计代码和事务处理。
Certain database types and configurations can handle some of this effort, but in most cases the solution boils down to how you design your code and transaction processing.
它提供了安全可靠的数据库环境,最适用于联机事务处理。
Best suited for online transaction processing, it provides secure and reliable database environment.
除非您不能避免在单个工作单元中处理收到的消息和数据库升级,否则因为性能的原因要考虑用局部事务处理。
Unless you cannot avoid processing the incoming messages and database update in a single unit of work, consider using local transaction for performance reasons.
因此,从数据库方面看,在线事务处理(OLTP)环境很适合使用EFD数据存储。
Therefore, from a database perspective, on-line transaction processing (OLTP) environments are ideal candidates for EFD data storage.
适配器有各种形状和大小(而不是颜色);一些与数据库通信,一些与文件系统中的平面文件通信,一些与事务处理系统通信,还有一些与EIS中的功能通信。
Adapters come in all shapes and sizes (but not colors); some talk to databases, others to flat files in your file system, others to databases, and still others to the functions in your EIS.
联机事务处理(OLTP)与联机分析处理(OLAP)并不相同,两种技术所使用的数据访问模式也有很大的区别。
Online transaction processing (OLTP) is not the same thing as online analytical processing (OLAP), and data access patterns for each technique are quite different.
事务处理用于保护作为一个组必须成功或失败的一系列数据库操作。
Transactions are used to protect a sequence of database operations that must either succeed or fail as a group.
在数据库持久性的早期(例如jdbc),我们一般会将事务处理委派给数据库。
In the early days of database persistence (for example, JDBC), we commonly delegated transaction processing to the database.
例如,如果您的数据库用于事务处理和繁重的决策支持(DSS)查询,则可以确定非预定的DSS查询将牺牲您的事务性能。
For example, if your database is used for transaction processing and heavy decision-support (DSS) queries, you can be sure that a non-scheduled DSS query will trash your transaction performance.
我们可以考虑为某些数据使用一个不同的数据库,这样这个数据库中所有的数据都是用于在线事务处理的了。
You might even consider using a different database for some data in cases where all the data is tied to online transactions.
为衡量阵列的性能影响,使用900gb的数据库且执行oltp(联机事务处理)工作负荷。
To measure the performance impact of arrays, a 900gb database was used and an OLTP (Online Transactional Processing) workload was exercised.
方案小组在后台主机的事务处理中使用的数据连接不包括遵从扩充体系结构(XA)标准的数据源。
The particular connection the team was using to the back-end mainframe transaction was not an XA-aware data source.
这是事务处理的主要陷阱之一:基于 ORM 的框架需要一个事务来触发对象缓存与数据库之间的同步。
This is one of the first major pitfalls of transaction processing: ORM-based frameworks require a transaction in order to trigger the synchronization between the object cache and the database.
这种设置描述了大多数商业数据库的安装设置,通常都是遵循事务处理模型。
This setup describes most commercial database installations, which generally follow the transactional processing model.
它提供微秒级的数据库事务处理速度。
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