A multilevel real-time database system must have security constrains in addition to timing constrains.
一个多级安全实时数据库系统不仅需要有安全限制，同时也要有时间约束。
This paper suggests a trigger mechanism supporting advanced application in active real-time database system.
提出了一种支持现代应用的主动实时数据库系统的触发器机制。
As an application, a design method of a distributed real time database system based on JDBC and Web is given.
最后给出了一个基于JDBC的分布式实时数据库系统设计的应用实例。
And nowadays, in the industrial field, real-time database system is being used more and more, so it is so valuable to study and apply it.
并且，现今实时数据库体系在工业范畴得到了越来越普遍的应用，所以它具有主要的研讨和适用价值。
The core problem of the real-time database system is to ensure the consistency of data and the correctness of events, which are related to time.
实时数据库的核心问题是事务的处理既要确保数据的一致性，又要保证事务的正确性，而它们都与定时相关联。
The real-time database system saves the dynamic data produced in the run of system and the various interior information needed for the normal run.
实时数据库保存系统运行时产生的动态数据和系统正常运行所需的各种内部信息。
In this paper, a trigger mechanism for real-time database system is presented. The system have abilities to enforce time-constraints and activate.
本文给出实时数据库系统中的触发器机制，使系统具有实施时限的能力，同时具有主动性。
In a distributed real time database system, the only way to ensure transaction atomicity is to investigate and develop a real time atomic commit protocol.
在分布式实时数据库系统中，保证事务原子性的唯一途径是研究和开发出一个实时的原子提交协议。
The partition technique of ORACLE is introduced in this article; some partition schemas of real-time database system in MDSS are also given, with the experiments results.
本文对ORACLE数据库的分区技术进行了介绍，对分区技术在国家级气象资料存储检索系统（MDSS）实时数据库中的应用方案及初步实验结果进行了探讨。
The general industrial control software includes graphic interface system, the third party program module, control function module and real-time database system module etc.
一般的工控软件包括图形界面系统、第三方程序接口组件、控制功能组件、实时数据库系统等组件。
In the construction of industrial control configurable software for greenhouse agriculture production detection and control process, design of real-time database system is introduced.
介绍了在面向温室农业生产监控过程的工控组态软件建设中，实时数据库系统的设计。
The distribution of transactions and unpredictability of transaction triggering make the transaction schedule more difficult in distributed active real-time database system (DARTDBS).
事务的分布性和事务触发的不可预测性使得分布式主动实时数据库系统中的事务调度变得较为复杂。
In this paper, we propose a storage architecture for an embedded real time database system according to the data character of real time application and the performance of the storage media.
本文针对嵌入式系统的应用环境和实时数据库系统的数据特征，通过对各种存储器性能的比较，提出了嵌入式实时数据库系统的存储体系结构。
From the development background, solution, system design and realization, the production and supervision real time database system of Baling Petrochemical Company, SINOPEC was analyzed and discussed.
从开发背景、解决方案、系统设计与实现等方面对中石化巴陵分公司生产监控实时数据库系统进行分析和说明。
Now if the requester_s system crashes at any time the requester will know where to restart by the records it keeps in its local database.
现在如果请求方的系统在任何时候崩溃了，那么请求方总能通过它保存在本地数据库里的记录找到重新开始的位置。
The method of moving database changes from the primary to the secondary system varies, but the process produces a window of time during which data has not migrated from one system to the other.
将数据库从主系统移动到辅助系统的方法因情况而异，但是这个过程总会产生一个时间窗，在这个时间窗内，数据还没有完成从一个系统到另一个系统的迁移。
In addition to new features for managing database time, DB2 9.7 also helps administrators minimize downtime by making it possible to move database schemas without taking the system down.
除了管理数据库时间的新特性之外，DB2 9.7还支持在不停止运行系统的情况下转移数据库模式，这可以帮助管理员减少停机时间。
Depending on the database system and the implementation of the JDBC driver, this usually results in timestamp data written in the time zone of the application server.
依赖于数据库管理系统和JDBC驱动器的实现，该操作会根据应用程序服务器的时区将时间戳数据写到数据库中。
Due to the heavy load on the database system, it does not make sense to have several threads cleaning the process or task instances at the same time.
由于会在数据库系统产生很重的负载，同时用多个线程清理过程或任务实例是没有意义的。
The backup on the split mirror system will be capturing the state of the database containers on the source system at the time that the split occurred.
当发生分割时，分割镜像系统上的备份将捕捉源系统上的数据库容器的状态。
Raw device usage also improves failover time in case the database is large, because during failover the operating system does not have to do a file check to the file system (FSCK).
如果数据库很大，那原始设备的使用也能减少故障转移时间，因为进行故障转移时，操作系统不必对文件系统进行文件检查(fsck)。
Usually media failure is caused by either the complete loss of a data file or a system change number (SCN) time stamp being out of sync with the rest of the database.
通常媒体故障是由于数据文件完全丢失或系统更改编号（System Change Number，SCN）时间戳与数据库的其余部分不同步造成的。
Just in time for OSCON, the failure leaves all six million or more users of the open source database system unable to access source code, bug tracking, or discussion forums on the site.
此时正值oscon会议召开，故障导致该开源数据库系统的六百多万名用户无一能够访问源代码、跟踪bug和网站论坛。
For example, running a file system copy while the database is running won't give you a snapshot for your database for a particular point in time (PIT).
例如，如果数据库在运行，那么执行文件系统复制操作时将得不到即时点(pointintime,PIT)上数据库的快照。
This option improves performance by enabling you to temporarily leave completed process instances in the database, and then delete them at a later time when the system is less busy.
此选项使您能够将已完成的流程实例暂时保留在数据库中，然后在以后系统不太慢的时候再删除它们，从而改进了性能。
With this system, certain vehicles' real-time status, such as gasoline consumption, load and position, can be monitored and sent to a national database.
有了这个系统，每个车辆的即时状态，如油耗量，负荷和位置，都可以监测到并发送到国家数据库。
The system shall support 1,000 simultaneous users, all doing queries against the database at the same time, without crashing or losing data.
系统应支持1000个并发用户同时查询数据库，而不会发生拥塞或数据丢失。
Without Optim Database Administrator, Erik would have to manually write scripts to migrate and test the changes in the test system, which could be both time consuming and error prone.
如果没有IBM OptimDatabaseAdministrator,Erik就必须手动编写脚本来移植和测试他在测试系统所做的修改，这既耗时又容易出错。
In system processing, it adopted uniform database inquiry processing method to complete processing information system varies with time.
在系统处理中，采用统一的数据库查询处理方法，完成信息系统随时间变化的处理的方法。
This paper analyzes a real time system of electric power database based on CORBA module model.
本文探讨了基于CORBA组件模型体系的电力调度实时数据库管理系统。
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