This URI gets an Actor with primary key m1
这个URI会获取一个带有主键m1 的Actor
TransactionId: ID of the transaction; primary key of the bean.
transactionId：事务的ID,bean的主键。
The getCatalog() operation takes a primary key and returns Catalog
getCatalog()操作接受一个主键作为参数，并返回Catalog
The DAO may allow queries based on criteria other than the primary key.
DAO可允许基于除主键之外的标准进行查询。
Each record saved in the datastore, also called an entity, requires a primary key.
保存在数据存储中的每一条记录，即实体，都需要有一个主键。
Multiple attributes in the entity may be combined to form a composite primary key.
实体中的多个属性可以组合成一个复合的主键。
Data type of primary key columns, foreign key columns, and columns used on indexes.
主键列、外键列和索引上使用的列的数据类型。
You don't need to worry about messing around with the primary key or foreign key.
您无需担心处理主键或外键的麻烦。
To work, Sphinx must be able to tie a search result to a 32-bit integer primary key.
为此，Sphinx必须能够把搜索结果与32位整型主键绑定在一起。
This article described three approaches to implementing a surrogate key as primary key.
本文描述了实现作为主键的代理键的三种方法。
On the next page, you choose where to retrieve the value of the primary key (Figure 28).
在接下来的页面中，您要选择在什么地方检索主关键字的值(图28)。
Rails USES the primary key column id for various recordkeeping and referencing tasks.
Rails使用主键列id来完成各种记录保持和引用任务。
There's just one caveat: SQLObject won't let you change the primary key of an object.
这只是一个警告：SQLObject不允许更改对象的主键。
The find method requires you to know the primary key as well as the actual class type.
find方法要求您知道主键和实际类的类型。
You can adjust the primary-key creation strategy or even specify a composite primary key.
可以调整主键的生成策略，甚至指定复合主键。
If one is not supplied, one is created by default from the first column of the primary key.
如果没有提供分区键，则默认地从主键的第一个列创建分区键。
All Hibernator objects require a primary key. This is specified through the "id" attribute.
所有Hibernator对象都需要主键，通过“id”属性指定。
The name of the column conforms to that of a primary key -- in this case with the name ID
列的名称与主键一致——在这个例子中名字是 ID
This indicates that the relationship will be created for a static non-primary key property.
这表明将为一个静态非主键属性创建关系。
In Listing 5, you have a standard primary key column called PO_ID (that is, purchase order ID).
在清单5中，您有一个称为PO_ID的标准主键列(即订单id)。
Therefore, you need to map the foreign key attribute in Employee to the Department's primary key.
因此您需要将Employee的外部关键字属性，与Department的主关键字映射上。
You can see that the primary key is indeed a composite made up of the street and city fields.
可以看到，主键实际上是由street和city字段组合而成的。
As noted previously, of course, the primary key logic found in the application isn't bulletproof.
当然，如前所述，应用程序中的主键逻辑并不是很保险。
You want this to be the primary key for your table, so use the @Id annotation to declare this.
想要它成为表的主键，使用 @Id注释来声明。
The "username" field is a primary key and changing it should be done in a more controlled manner.
“用户名(username)”字段是一个主键，应该以一种更受控的方式改变它。
For foreign key creation, another table with a primary key with a compatible data type is required.
对于创建外键，则需要另外一个具有主键的表，且该主键具有兼容的数据类型。
So a different solution was found if an identifying column like a primary key is found in the table.
所以，如果在表中找到一个标识列，例如主键，则可以找到一种不同的解决方案。
It allows you to organize massive amounts of data by some primary key and efficiently query the data.
Bigtable让你可以通过一些主键来组织海量数据，并实现高效的查询。
If an error message appears stating that a primary key is not defined, select empno as the primary key.
如果出现一条出错信息，声称没有定义一个主关键字，那么您可以选择empno作为主关键字。
It will also make use of this same primary key to perform JOIN operations when accessing the database.
在访问数据库时，它还会利用同一主键执行join操作。
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