这种数据结构约束的弱化要求根据需要强化应用程序逻辑中的约束。
This weakening of the data structure constraint requires the strengthening of constraints within the application logic as necessary.
这些限制在极大程度上是因为数据结构的复杂约束。
Most of these limits are subtle constraints based on data structures.
我所能获取的列太多，又很容易遗漏重要的结构化数据库特性，比如索引或空约束。
I can fetch too many columns, or leave off important structural database features, like indexes or null constraints.
而这样的数据库结构涉及许许多多的随机设计约束——随机的设计决策。
And the structure of that database is really got a lot of arbitrary design constraints in it — arbitrary design decisions.
另外，基础结构仍然是关系型的，这使XML数据能够利用关系数据库的实用功能，比如触发器、约束和外键关系。
Plus, the fact that the infrastructure is still relational allows the XML data to leverage the proven capabilities of the relational database like triggers, constraints, and foreign key relationships.
XML模式规范(请参见参考资料部分)提供了一个丰富的数据模型，允许对数据上的复杂结构和约束进行表述。
The XML Schema specification (See the Resources section) provides a rich data model that enables you to express sophisticated structure and constraints on your data.
让数据架构师参与这个过程常常非常有帮助，因为他们通常了解数据源的物理约束和结构特性。
It is also often very helpful to have a data architect available and involved in this process as they typically understand the physical constraints and structural aspects of the data sources.
解决了只注意数据结构的无损转换，而忽略数据约束的保存问题。
It considered not only lossless transformation of database structure, but also data constraint storage.
综合考虑了两种类型的内部约束：固定结点和固定单元边，给出了详细的实现方法和数据结构。
This article gives two types of inner restrictions, including fixed nodes and fixed element boundary, detailed realization method and date structure.
该方法引入了建立和管理参数化模型的策略，通过扩展一般的图形数据结构统一表示几何约束。
A new strategy of constructing and managing the parametric model is used in used in this method. It extends usual graphics data structure to describe geometric constraint.
相同的结构(表架构、关系和约束)和数据。
With the same structure table schemas, relations, and constraints and data as this.
从活动模型中获得可执行模型的结构信息，从规则模型中获得可执行模型的约束信息，从数据模型中获得模型的数据域信息。
We get the structure information of the executable models from the activity models and the binding information from the rule models and the domain information from the data models.
数据库目录包含每个文件的结构，每条数据项的类型和存储格式，以及针对数据的不同约束等信息。
Program-data independence:It is a property of database system that the structure of data file is stored in the DBMS catalog separately from the access programs.
基于一定的数据包丢失率和恒定时延，系统被建模为由结构事件率约束的异步动态切换系统。
Based on fixed data packet dropout rates and constant time-delay, the NCS is modeled as an asynchronous dynamical-switched system constrained by configuration event rates.
利用距离约束的数据库搜索方法和接触势能分析技术，提出了一种用来模建蛋白质结构环区的分子模建方法。
A molecular modeling scheme using distance-restraint - based database search and contact potential analysis is proposed for modeling loop region of protein.
利用计算机数值求解，得到多种门式起重机结构形式腿端约束(计算)长度系数，为门式起重机支腿整体稳定性计算提供了实用的数据。
Computer is used to reach a numeric solution, theoretical length coefficients of end constraints of legs for different types of gantry crane structures are obtained. Practically applicable...
利用计算机数值求解，得到多种门式起重机结构形式腿端约束(计算)长度系数，为门式起重机支腿整体稳定性计算提供了实用的数据。
Computer is used to reach a numeric solution, theoretical length coefficients of end constraints of legs for different types of gantry crane structures are obtained. Practicall...
在创建数据库时，数据模型和完整性约束能够在数据的结构和内容上形成确定性。
In the creation of a database, a data model and integrity constraints can create certainty in the structure and content of the data.
提出了基于最小能量约束的水平集重构方法，用以解决由三维数据点云自动重构复杂拓扑结构物体模型的问题。
A constrained energy minimization based on level set method for 3d reconstruction of object with complex topology is proposed.
根据所定义的约束及运动类型，建立了适合于手势合成的手数据结构。
And also the motion composition based on the restriction has been studied.
根据所定义的约束及运动类型，建立了适合于手势合成的手数据结构。
And also the motion composition based on the restriction has been studied.
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