active database

Data mining has long been an area of active database research.

数据挖掘一直是数据库研究、开发和应用最活跃的分支之一。无论在研究领域还是商业应用，数据挖掘都取得了可喜的成果。

Without modifying the client applications and the kernel of DBMS, the mediator which encapsulates ECA rules can be used to implement active functions of database trigger, such as event detection, condition evaluation and action execution etc.

封装了ECA规则的介体程序，不修改客户应用程序和数据库管理系统内核，可实现数据库触发器的事件检测、条件判断、动作执行等主动功能。

Utilize active database technology to design trigger based on location and attribute, real-time surveille and active warning.

利用主动数据库技术设计了空间位置和属性的两种触发机制，对态势信息进行实时监控、自动报警。

Combining with Web applied programme, the database can establish active pages and the powerful commerce web.

Web应用程序和数据库结合可以创建动态页面，从而建设功能强大的商务网站。

The research of system execution model based on a new active database system model

基于一个新的主动数据库模型的系统执行模型的研究

A static analysis technique is studied in active database system for rule termination.

研究主动数据库系统中规则终止特性的静态分析技术.

In rule-based active database systems, triggered rules are generally executed in the context of database transactions. Coupling mode, specified in rule definition, determines when a rule transaction will be launched and how these parallel rule transactions are to be serialized.

在基于规则的主动数据库系统中，被触发规则通常以事务模式运行，这些并行事务由规则耦合方式确定其开始处理时刻和可串行化提交次序。

The constraints security layer consists of integrity constraints, classification and inference constraints, access constraints, and application semantics constraints. The adaptive detection layer consists of active database lev-el, relation schema level, transaction level and application semantics level.

将约束安全层分为完整性约束、分级和推理约束、访问约束和应用语义约束四个子层，将适应性检测层分为数据库活动级、关系模式级、事务级和应用语义级四个子层。

Research on Control System Rule Base for Nuclear Power Plant Based on Active Database

基于主动数据库技术的核动力装置控制系统规则库方法研究

Active Database is the integration of database and artificial intelligence; technology, which enable database to be able to automatically react to events.

主动数据库（Active Database），是数据库与人工智能技术的结合，它使得数据库能主动对事件作出反应。

Distributed and Active Database System Based on Agent-Oriented Method

分布式主动数据库中Agent与语义的研究

So we can apply the active database technology to the workflow system.

因此,可以把主动数据库技术应用到工作流系统中来.

In the second section, the author discuss the key technologies such as DCOM, three-tier architecture, multimedia database, Active Template Library and ADO adopted in the Conferencing Document Managing System;

第二部分对IP多播桌面视频会议文档管理系统所采用的三层软件结构、多媒体信息管理、分布组件对象模型等关键技术进行详细论述。

The key that can provide initiative-mechanism in the active database is using detecting and disposing event that can waken DBMS to supervise the state of database system, thereby, we can say that event is headspring of initiative-mechanism.

主动数据库中实现主动机制的关键之一就是通过对事件的探测和处理来激发DBMS对数据库系统状态的监控，因此可以说，主动机制的源泉是事件。

ECA rule is usually adapted to form the Active database rule.

主动数据库规则的形式一般为ECA规则。

If the primary database is accessible, back up the active transaction log and apply the log backup to the secondary databases.

如果可以访问主数据库，则请备份活动的事务日志，并将日志备份应用到辅助数据库。

Real-time multi version two-phase locking ( RTMV 2 PL ) concurrency control protocol was presented-time active database systems ( RTADBSs ).

提出了 实时 主动数据库系统 实时 多版本两阶段封锁并发控制协议 ( RTMV2PL ).

Using Active Data Object in Visual C++ to Access Database

在Visual c++中用活动数据对象（ADO）操纵数据库

The method can monitor dynamically data of backend corporate database and manage them, relying on the technology of active rule, then structures an active database management system.

主动机制数据库动态监视后台数据库中的数据状态的变化，通过主动机制对这些数据进行管理，形成主动数据库管理系统。

A Study on an Active Database System and its Applications

主动数据库及其应用的研究