数据库

According to practical situation of the currency MIS development and application, by anatomizing the structure of relation database, this paper puts forward a reconstruction model based on application layer data mode to realize the logistic independency between application program and database.

根据国内通用MIS系统开发和应用的实际情况，在深入剖析关系数据库结构的基础上，提出一种基于应用层数据模式的关系数据库重构模型，实现了应用程序和底层数据库的逻辑独立。

Since the binding free energy is the best thermodynamic parameter in charactering the binding affinity of ligand to receptor, it has been used widely in medicinal chemistry and drug discovery and development. The developments of three-dimensional structure determination techniques of macrobiomolecules and computer science allow the binding free energy between drugs and receptors can be predicted accurately.

现在的一些类药性评价规则采用的是和分子大小相关的描述符，所以它们虽然能够有效地将平均分子量较大的&类药性&数据库—MDDR(MACCS-ⅡDrug Data Report)和平均分子量较小的&非类药性&数据库—ACD区分开来，但是却无法有效地区分平均分子量相近的&类药性&数据库—CMC(Comprehensive Medicinal Chemistry)与ACD。

Thirdly, in order to manage these data better, the paper advances the organization methods of data of commixed Database of Geo-spatial Framework model by integrating some advanced database technologies such as RDBMS and the Spatial Database Engine, namely on the basis of database and the data of Geo-spatial Framework divided in a preceding part of this paper, it describes layer-delaminating, block-dividing, slice-connecting, map-dividing and BLOB etc. to organize spatial data, including DLG, DOM, DEM, and thematic data, taking example for the data of urban planning. At the same time it also realizes integrated management of these data.

然后，本文以管理这些地理空间框架数据为主要目标，集成关系数据库管理系统以及空间数据引擎等相关技术，提出了地理空间框架混合数据库数据组织方法，即以地理空间框架数据库为基础，以分类后的地理空间框架数据为对象，通过采用分层、分块、连片、分幅以及大二进制对象等方法对基础空间数据(包括数字线划数据、数字正射影像数据、数字高程模型数据)和专题数据进行统一组织，并实现了这些数据的关联一体化管理。

In addition,with aview to ensuring safety of the database content and operation,this paper designs business logic applicable to symmetrical encipheringand irregular enciphering(ensuring cipher safety and avoiding secret divulging)and business logic used to defend Web attack in the form of DLL suitable to any Web and any application system or program.

另外，为了增加数据库的内容的安全和保证数据库操作的安全，分别设计了一套用于数据库内容对称密钥和散列加密(保证密码安全及避免由于密码相同而造成泄密现象)的业务逻辑，和防止Web攻击的业务逻辑，并于DLL的形式存在，可被任何一个Web服务引用，也可被任何一个应用系统或程序引用。

In order to establish the systematic structure of Web Serves and enhance reusability of the software and safety of application syste m,this paper lays emphasis on researching and analyzing technology of loginning,data enciphering,database connection visiting,ensuring database safety,defending Web attack and reserving data to avoid any disaster and then gives some better corresponding solutions.

为了搭建多层结构的分布式Web应用系统的Web Servers体系结构，提高软件的可重用性及应用系统的安全性，本文重点对遥程数据库维护中的登录技术、数据加密技术、数据库连接访问技术、数据库安全技术、防Web攻击技术及远程数据容

Federated database is a kind of distributed database.

而联邦数据库是分布式数据库领域的一个分支，它弥补了传统分布式数据库的不足。

If you like your database to be reinstalled, drop all the tables in it. On next page reload it will be reinstalled.

如果你要重装数据库，那就需要删除数据库里所有的表，然后页面刷新时，数据库会被重新安装。

In database system, normally the database management system will in charge of retrieving and storing of data.

在数据库中，一般存取时的细节是由数据库管理系统管理，应用程序不必了解数据库的软件和硬件的改变。

Multiple-database Model The multiple-database model is represented by proposals for shared and private database architect rues, checkout and checking of data to and from shared and private databases.

多个数据库模式多个数据库模式是通过共享的和专用的数据库结构来回检查数据的输入结果和输出纤果而体现出来。

Based on the twenty-four-word policy of information constru ction of our country, the development strategy of database industry of our country is to fully develop information resources of our country, con struct sophisticating database industry and form satisfactory da tabase market mechanism.

在我国信息化建设二十四字方针的指导下，我国数据库生产业的发展战略是&全面开发我国信息资源，建设完善的数据库生产业，健全数据库市场机制&。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。