You can create a simple constraint expression to check data for a simple condition;
可创建简单的约束表达式，用简单条件检查数据；
There is also a SQL editor control that contains intellisense capabilities to edit the check constraint expression.
还存在一个包含智能能力的SQL编辑器控件，用于编辑检查约束表达式。
The SQL editor control that contains intellisense capabilities is provided to edit the check constraint expression.
提供了包含智能感知功能的SQL编辑器控件来编辑检查约束表示。
The body system of constraint application which include constraint analysis, constraint expression, constraint solution is put forward.
提出了包括“约束分析”、“约束表达”、“约束求解”的约束应用体系。
And the result shows that this optimal strategy can improve query performance saliently if the query constraint expression is not a CNF.
结果表明，当查询条件不是合取范式时，该优化策略明显提高了查询性能。
For any attribute in Laszlo, you can assign a constraint expression instead of a standard value. Constraint expressions begin with a dollar sign, and have the following format.
对于Laszlo中的任何属性，都可以为之赋予一个约束表达式(constraint expression)，而不是赋予一个标准的值。
Since you can set any arbitrary attribute value (and yes, that includes values that you define) to a constraint expression or use it in a constraint, there are a lot of possibilities.
由于可以为约束表达式设置任何任意的属性值(包括您自己定义的值)，或者在约束中使用它，因此存在很多可能。
Delete a unique constraint when you want to remove the requirement for uniqueness for values entered in the column or combination of columns included in the constraint expression.
当希望移除对在约束表达式所包含的列或列组合中输入的值的唯一性要求时，可删除唯一约束。
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。
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。
Another problem is how to calculate the multiple integration in the expression of the satisfactory degrees of objective and constraint.
另一个困难是如何有效地计算目标满意度和约束满足度表达式中的多重积分。
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.
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。
The main problems of Parameter design are abstraction and expression of the geometric constraint relationship, solver of geometric constraint and creation of geometry model.
参数化设计的关键是几何约束关系的提取和表达，几何约束的求解及参数化几何模型构造。
The realization of the method is described, and the algorithm to construct the constraint set of expression LRAUC single-path testing is given.
阐述了此方法的具体实现，给出了表达式LRAUC单路测试约束集构造算法。
Because the Regular Expression generator is not guaranteed to produce unique values, you cannot use it to fill a user-defined type column that has a unique constraint.
由于无法保证规则运算式产生器一定会产生唯一的值，所以您不能使用它来填满具有唯一条件约束的使用者定义型别资料行。
The causation and character of conflict in aircraft cooperative design were analyzed, and a layered constraint network was given during the research on constraint knowledge expression.
分析了飞行器协同设计中冲突问题产生的原因和冲突的特点，并结合国内外研究情况，在研究冲突的约束知识表达方法的过程中提出了一种层次约束网络。
Constraint solver is the conversion from dependence relationship of features to geometry or engineering expression, then achieve the design by solving the constraint.
约束求解是将特征间的相互依赖关系映射为几何或工程约束描述，通过求解约束实现设计对象的细节。
This expression must identify a single element or attribute whose content or value is used for the constraint.
该表达式必须标识其内容或值用于约束的单个元素或特性。
The Gauss minimum constraint theory has its uniform expression, and it can reflect the system's inertia effect. It is suitable for use in the modeling and analysis of a rigid flexible coupled system.
高斯最小拘束原理具有统一的表达形式，并可全面反映系统的惯量效应，适合于此类刚柔耦合系统的建模及分析。
The constraint will not become valid until an expression is specified for the constraint.
为该约束指定表达式后，该约束才生效。
The constraint will not become valid until an expression is specified for the constraint.
为该约束指定表达式后，该约束才生效。
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