这表示将为名为id的主键属性创建关系。
This indicates that the relationship will be created for a primary key property named: id.
这表明将为一个静态非主键属性创建关系。
This indicates that the relationship will be created for a static non-primary key property.
可以使用动态关系来关联一组相关业务对象的主键,而使用静态关系来关联非主键属性。
You can use dynamic relationships to correlate primary keys from a set of related business objects and static relationships to correlate non-primary key properties.
要转换一个已有的列成为一个主键,在图中点击这个列(类中的属性)。
To convert an existing column into a primary key, click on the column (property in the class) in the diagram.
相反,它只需要程序员将属性标记为持久性的,并识别出能代表对象唯一标识符(或者主键)的属性。
Instead, it requires the developer only to denote the attributes to be persisted and to identify the attribute to represent the object's unique identifier (or primary key).
实体的主键是使该实体的一个实例区别于其他实例的一个或一组属性。
An entity's primary key is the attribute or set of attributes that distinguish one instance of the entity from another.
它们为ID属性使用数据库生成的主键值。
They use database-generated primary key values for the ID attribute.
更新一本特定的、由其主键标识的书籍的属性。
Updates the attributes of a specific book that is identified by its primary key.
产品常常只有很少几个共有的属性,比如主键、名称、短描述和长描述。
Products often share only a few attributes, such as a primary key, a name, a short description, and a long description.
实体中的多个属性可以组合成一个复合的主键。
Multiple attributes in the entity may be combined to form a composite primary key.
模板由关于数据库的模式信息、一组表、列属性和标识行的主键构成。
A template consists of schema information about a database, a group of tables, column attributes, and the primary keys that identify rows.
复制模板包含数据库的架构信息、一组表、列属性、标识行的主键。
Replication templates contain schema information about a database, a group of tables, column attributes, and the primary keys that identify rows.
在该测试中,我们创建了一个名为ogiscustomer的实体,它有包括主键(SRCSEQ)在内的4个成员属性。
In this test, we created a single entity named OgisCustomer, which has four member attributes including the primary key (SRCSEQ).
该关系分别为这四个业务对象的非主键state属性定义一个静态关系。
The relationship defines a static relationship for the non-primary key state property for each of the four business objects.
我们将会将该Key作为AcmeMembership的属性添加,并将其标记为一个主键,并指定GoogleAppEngine运行时的策略,它将会自动填充上唯一的值。
We will include this Key as an attribute of AcmeMembership, mark it as a Primary Key, and specify the strategy the Google App Engine runtime will use to populate it automatically with unique values.
关系定义了这四个业务对象的主键id属性之间的动态关系。
The relationship defines a dynamic relationship for the primary key id property for each of the four business objects.
所有Hibernator对象都需要主键,通过“id”属性指定。
All Hibernator objects require a primary key. This is specified through the "id" attribute.
动态关系通常用于关联一组相关业务对象中的主键,而静态关系通常用于关联一些非主键的属性。
Dynamic relationships are typically used to correlate primary keys from a set of related business objects, whereas static relationships are typically used to correlate non-primary key properties.
在这里使用匹配关键词是因为不是所有列都与UM L属性相关;正如前文介绍过的,添加主键和外键是为了同时映射uml关联。
The match keyword is used here because not every column relates to a UML attribute; as presented earlier, primary and foreign keys are added in order to map UML associations as well.
一些实体具有某些共同的属性,比如标识符(主键),而其他属性不同,这些实体可能具有共同的超类型。
Entities that share some attributes, including an identifier (primary key), but not others may be modelled as having a common supertype.
此外,注意主键和外来键属性是怎样表达车辆调度类图的关系的。
Also, notice how the primary key and foreign key properties represent the relationships on the Deals on Wheels class diagram.
在该通讯中,你需要表达主键和外键之间的联系,并指明该属性的值。
In this correspondence, you need to express the link between the primary and foreign keys, and specify a value for this attribute.
为每个相关属性的集合创建一个单独的表,并为每个表指定一个主键。每列最多包含一个来自其属性域的值。
Make a separate table for each set of related attributes, and give each table a primary key. Each field contains at most one value from its attribute domain.
注解所指定的属性是实体的主键,[stringlength(512)]指定了字符串属性的最大长度值。
The [key] annotation specifies that a property is the entity's primary key, while [StringLength (512)] specifies the maximum length of a string property.
表必需与属性定义匹配,例如,等式表的主数据库键必须也是 Persistent类的主键。
The table must match the definition of your attributes; for example, the primary database key for the equations table must be the primary key of the Persistent class as well.
名称属性在customer类映射到的表上定义外键,参考列定义Table CustomerOrder映射到的主键。
The name attribute defines the foreign key on the table to which the Customer class is mapped, and the referenced column defines the primary key to which the table CustomerOrder is mapped.
如果一个属性仅依赖于一个多重主键的一部分,则将该属性转移到一个单独的表中。
If an attribute depends on only part of a multi-valued key, then remove it to a separate table.
其他列属性可以包括:该列是否是表的主键,用户是否必须向列中输入一个值,以及其默认值是什么。
Other column properties can include whether the column is the table's primary key, whether users must enter a value into it, and what its default value is.
如果一些属性跟主键扯不上关系,则将这些属性转移到一个单独的表中。所有属性必须直接依赖于主键(查看更多)。
If attributes do not contribute to a description of the key, then remove them to a separate table. All attributes must be directly dependent on the primary key. (Read more here).
此模型将复杂的嵌套关系模式分解为由主键或主键和一个非主属性构成的原子模式集合。
This model decomposes a nested relational schema into a set of atomic schemas, each of them constitutes of a primary key or a primary key plus a non-primary attribute.
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