Concurrency control algorithm is used to ensure the consistency of multiuser database while allowing a set of transactions to be executed concurrently.

The leitmotiv is to solve the problem how to make use of recursive rules available to realize recursive query in deductive database.

旨在解决在演绎数据库中，如何利用递归规则进行递归查询的问题。

An Optimization Algorithm of Magic Set Dealing with Recursive Query in Deductive Database

演绎数据库中处理递归查询的一种改进算法

The following steps demonstrate switching the default catalog database to a DB2 database

把默认的编目数据库切换为DB2数据库的步骤如下

Recently the communication network faces some new threats. Attacks to the telephone network mainly aim at user terminal device, switching device, database, network management system, signaling system and transmitting device.

近来通信领域出现了一些新的安全威胁对电话网的攻击主要有针对用户终端设备、交换设备、数据库、网管系统、信令系统和传输设备的攻击；

Switching to direct database access and JMS was the single biggest contributor to performance improvement.

切换到直接的数据库访问和JMS是性能改善的最大单一贡献者。

This means that switching to another database system in the middle of a project is easy.

这意味着，在交换中的一个项目到另一个数据库系统很容易。

Switching database vendors or trying to cluster the database servers would mean changing all your front end code.

转换数据库厂商或设法集群数据库服务器将意味着完全改变您的前端代码。

Synthesis basis database construction research for the water supply project in the middle cities of Jilin Province

吉林省中部城市引松供水工程综合基础数据库建设研究

This Fault Diagnosis Expert System can perform fault diagnosis for new electric facility only need to change synthesis database. The designing method that separate diagnostic data and diagnostic ratiocination completely, Shake off localization which traditional Fault Diagnosis Expert System only Diagnosis provide object.

这种将诊断数据与诊断方法完全分离的设计方法，摆脱了传统的故障诊断专家系统只能诊断具体的诊断对象的局限性，为电气设备故障诊断专家系统通用开发平台的研究奠定了基础。

It presents data mining research in the synthesis database of microporous crystals built up by the State Key Laboratory of Inorganic Synthesis and Preparative Chemistry of Jilin University through query and decision tree.

采用数据挖掘中的查询和决策树技术对吉林大学无机合成与制备化学国家重点实验室建立的微孔晶体合成反应数据库进行了数据挖掘研究。

Synthesis Database of Inorganic Microporous Crystal

无机微孔晶体合成反应数据库

Data Mining Research in the Synthesis Database of Microporous Crystals

微孔晶体合成反应数据库的数据挖掘研究

Then, the synthesis database of expert system is established according to the running status of parking equipments which detected by sensors and garage structure parameters.

再根据传感器检测的停车设备运行状态及车库结构参数，组织专家系统的综合数据库。

Foundation of Horse Synthesis Database of China and Prediction of Horse Genome Sequence

中国马业综合数据库的建立及马基因组序列预测

For quick prototyping efforts it is acceptable to combine the database access in the view layer, compromising the strict separation of data from view.

为了快速开发原型，将数据库访问合并到视图层，打破数据与视图严格分离的限制，这是可以接受的。

Therefore, you should limit forced service to situations where possible data loss is acceptable and immediate database availability is critical.

因此，您应将强制服务的使用限制在以下两种情况：可以接受可能造成的数据丢失以及立即使用数据库对您很重要。

Unable to log accounting information into the database.

不能将记帐信息记录到数据库。

Method for Transferring Data From Remote accounting System Into ORACLE Database

远方会计核算系统的数据转入ORACLE数据库的方法

A more promising solution is to take advantage of the accounting package database, which holds a copy of the transactions.

一种更值得推荐的解决方案是利用计费程序包的数据库，这个数据库中已经保存了事务的一个副本。

Bachelors degree or equivalent in a natural/ medical science, data management or related discipline. The accounting database is not valid or cannot be found. Specify another accounting database and try again.

自然科学，医学，数据管理或相关专业大学本科或以上。记帐数据库无效或找不到。请指定另一个记帐数据库，然后再试一次。