如果它没有被指定，系统会使用一个全约束名称。
If it is not specified, the system USES the fully qualified constraint name.
当想要更改约束所附加到的列、更改约束名称或设置约束的附加属性时，可修改唯一约束。
Modify a unique constraint when you want to change the columns that the constraint is attached to, change the constraint name, or set additional properties for the constraint.
最后，还有一个对命名参数的约束就是一旦你为一个方法掉哦那个指定了参数名称，那么剩下的在这个参数之后的所有参数都必须是命名参数。
Finally, another constraint on named parameters is that once you provide a name for a parameter in a method invocation, then the rest of the parameters appearing after it must also be named.
该元素包含约束描述和角色名称(先前在部署描述符中定义过)。
This element contains the description of the constraint and the name of the role (previously defined in the deployment descriptor).
换句话说，当两个类装入器用相同的名称装入不同的类时(也就是不同的字节码)，类装入器约束保证了它们之间不会有类型不匹配。
In other words, when two class loaders load different classes (that is, different bytecodes) with the same name, class loader constraints guarantee that there will be no type mismatch between them.
该名称还是类型名称，并且该类型的所有实例都必须遵守此定义所给定的约束。
The name is also the Type name and all instances of that Type must conform to the constraints given by the definition.
基本抽象类型定义了几种典型的元素，如名称和描述，以及支持定位约束(如果没有包含在BICS文档中)的元素。
The base abstract type defines several typical elements such as a name and description, as well as elements that support the location of a constraint if it is not contained within the BICS document.
提供一个名称是一个好的习惯，因为，名称可以被工具使用在名称约束失败的日志中。
It is a good idea to provide a name, though, because the name can be used in reporting the constraint failure by the tool.
简单的例子比如典型的名称唯一性约束、类型检查或非空检查。
Simple examples include the typical name-uniqueness constraints, type checks or non-nullness.
name -约束的本地化名称(出现在GUI中)。
Name-a localizable name for the constraint (appears in the GUI).
它允许根据相关名称空间定义复杂或简单类型的约束以进行扩展。
Wildcarding allows you to define complex or simple type restrictions for extensions based on an associated namespace.
若要更改此约束的名称，请直接在属性字段键入文本。
To change the name of this constraint, type the text directly in the property field.
为选定的数据库表创建约束，并为该约束提供默认名称和其他值。
Creates a constraint for the selected database table and provides a default name and other values for the constraint.
为选定的数据库表创建约束，并为该约束提供默认名称和其他值。
Creates a constraint for the selected database table and provides a default name and other values for the constraint.
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