It considered not only lossless transformation of database structure, but also data constraint storage.
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。
A user data constraint establishes a requirement that the constrained requests be received over a protected transport layer connection.
用户数据约束(user data constraint)满足了受限的请求应该经由受防护的传输层链接进行传输的需求。
Experimental results on a range of datasets show that our approach improves duplicate accuracy significantly over traditional techniques and has a good ability of noise data constraint.
在不同领域的数据集上的实验结果表明，该方法能够提高重复记录检测的精度，且具有良好的噪声数据抑制能力。
The primary reason for using an ri constraint is to ensure that data integrity is maintained whenever one table references another.
使用一个RI约束的主要原因是，确保当一个表引用另一个表时数据完整性得到维护。
If you add this type of constraint at development time, the schema validator will reject the invalid data at runtime.
如果您在开发阶段加入这种类型的约束，在运行的时候模式验证器就会拒绝无效数据。
This weakening of the data structure constraint requires the strengthening of constraints within the application logic as necessary.
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。
The network call to get the current time is a perfect item to cache because your 10-second constraint means the data will not be changing for, at most, 10 seconds.
获得当前时间的网络调用是高速缓存的一个完美项，因为您的10秒约束意味着数据在至多10秒钟之内不会更改。
Validate data: statement hooks let you validate parameter data before statement execution, providing the opportunity to do constraint check and data validation at the application level.
验证数据：通过语句钩子可以在执行语句之前验证参数数据，从而为应用程序级的约束检查和数据验证提供机会。
This can take the form of adding a column, changing the data type for a column, adding a constraint, or even deleting a column.
这可以采用添加列、更改列的数据类型、添加约束或者甚至删除列的方式来实现。
But from our data model's perspective, there is no unique table we can use to create our foreign key constraint, like the one between TB_RIGHT and TB_PERSON.
但是从我们数据模型的角度来看，我们没有一个惟一的表可以用来创建我们的外键约束，就像TB_RIGHT和TB_PERSON之间那样。
A constraint unique to this ecosystem is the fact that Big Data likes to be at rest.
这个生态系统的惟一约束是BigData喜欢处于静止状态这个事实。
Ability to query the data using an object-oriented query language: object Constraint language (OCL).
能够使用以下面向对象的查询语言对数据进行查询：对象约束语言(Object Constraint Language,OCL)。
Figure 4 describes the data flow used to create an XForms application by transforming the NIEM constraint document directly into the XForms document.
图4描述创建XForms应用程序所用的数据流，这个过程将NIEM约束文档直接转换为X Forms文档。
The creation of separate constraint and imported data element definition files leverages the Separation of Concerns design pattern.
按照 Separation of Concerns设计模式，将约束和导入的数据元素定义文件分隔开。
MTK maps the ENUM data type to VARCHAR(255) with check constraint.
MTK 将ENUM数据类型映射到带检查约束的VARCHAR(255)。
The same is true the other way... if I provide you my constraint model (usually in the form of a DTD or XML Schema), you quickly can work with my data.
反过来也一样，如果我向您提供了我的约束模型(constraint model)(通常为DTD或者XMLschema格式)，您就能够很快地操作我的数据。
Now, follow these steps to add a new constraint to check for the existence of a masking method if a column is set as privacy data
现在，添加一个新约束，以便在将一个列设为privacydata时检查是否存在一个masking方法。
The other precondition is that the data that is needed to run the constraint-checking algorithm defined above is actually available in the model.
另一个前置条件是运行前述约束检测算法所需的数据，要在模型中是实际可用的。
Because the API limits each data query to 1,000 results, the export data must be managed in even smaller chunks than the 30-second processing timeout constraint allows.
因为API将每个数据查询限制为1000条结果，所以导出数据必须在比30秒处理超时限制所允许的还要小的块中进行管理。
Definition: a "binding" connects an instance data node to a form control or to a model item constraint by using a binding expression as a locater.
定义：通过将绑定表达式用作定位器，“绑定”将实例数据结点连接到表单控制或模型项目约束。
An implicit DB2 constraint enforces that bus_start values are less than bus_end values, ensuring temporal data integrity.
一项隐含的DB 2限制会强制要求bus_start值小于bus_end值，确保时态数据的完整性。
Use the metadata in the constraint XML Schemas to "look up" related data from a metadata registry.
使用约束XMLSchema中的元数据在元数据登记系统中“查询”相关数据。
The constraint attribute contains a Boolean expression, which defines the condition to which the data is constrained.
constraint属性包含一个布尔表达式，它定义数据必须符合的条件。
Each constraint has a variety of meta-data associated with it. The following attributes are used to define a constraint.
每个约束有与之关联的不同元数据。
A Schematron document is essentially a set of constraints that apply to XML data. You can express a concrete Schematron constraint in one of two ways.
Schematron文档基本上是一组应用于XML数据的约束。
Description: Change a constraint (data type, size, etc) to simplify the problem Then try to solve it Once you have an algorithm for the "simplified" problem, generalize the problem again.
说明：通过改变一些条件，(比如数据类型或者问题的规模)来简化问题，然后设计一个算法来解决这个简化过的问题，然后在问题一般化还原回来。
Seven kinds of spatial data clustering approaches are studied. And the technique to solve the problem of Constraint-based Spatial Cluster Analysis is explored.
系统研究了七种典型的空间数据聚类方法，积极探索基于约束条件的空间聚类问题的解决方案；
This human factor can introduce an element of constraint, as data compiled for a particular application may be less useful elsewhere.
人们的传递因数能介绍元素限制，如同一个特别的应用程序编译的资料可能是比较不有用于其他地方一样。
Third two adaptive methods of regularized factors are put forward based on the relations of data object function, model constraint object function, and regularized factor.
根据数据目标函数、模型约束目标函数和正则化因子之间的关系，提出了两种正则化因子自适应调节方法。
Constrained cube gradient mining is an important mining task and its goal is to extract the pairs of gradient-probe cell satisfy the gradient constraint from a data cube.
约束立方梯度挖掘是一项重要的挖掘任务，其主要目的是从数据立方中挖掘出满足梯度约束的梯度-探测元组对。
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