After the conceptual schema comes the logical schema — the data model that defines the concepts with greater detail and shows the relationships between the entities.
在概念模式后出现的是逻辑模式——用更多的细节定义概念，并显示实体之间的关系的数据模型。
We later moved the schema from its logical representation to a physical DB2 installation, to give the engineering team access to tables and test data.
我们后来将这些计划从它的逻辑表示转化成了一个物理的DB 2安装，并给工程团队访问表和测试数据。
With this strategy, you can move up or down to any logical database schema state.
用这个策略，可以前后转移到逻辑数据库模式的任何状态。
Logical attachment refers to the case where the attachment is stored in the message in a field or location that is not defined by the message schema to be explicitly used for an attachment.
逻辑附件是指附件在消息中存储时，其字段或位置不是由供附件显式使用的消息架构定义的。
Some database changes require changes in data as well as schema, and some of those data changes require logical changes.
有些数据库变化要求数据和模式一起变化，有些数据变化要求逻辑变化。
The schema and partition provide logical separation of data for databases and namespace provide logical separation of data for XML.
这种模式和分区能够实现数据的逻辑分离，而名称空间则能够实现XML 数据的逻辑分离。
You can synchronize changes in data and schema. You can also address data changes that involve logical operations on your model objects.
可以同步数据和模式中的变化，也可以解决涉及对模型对象进行逻辑操作的数据变化。
Section 2 of the message flow extracts the schema from the WSDL document that is passed as part of the logical tree from the HTTP node.
消息流的第2部分从http节点作为逻辑树的一部分传递的WSDL文档提取模式。
Slice does not require such additional schema-level information because it maintains the association between a persistence instance and its original database partition via its logical name.
Slice不需要这类额外的模式层的信息，因为它根据持久性实例的逻辑名维护了实例和其原始数据库分区间的关联。
By utilizing Rails migration and defining your database schema changes in Ruby files, versioning of changes takes place in a logical manner.
通过利用Rails迁移和在Ruby文件中定义数据库模式更改，可以以逻辑的方式对更改进行版本控制。
The Service Registry enables management by promoting the visibility of the XML schema documents and the logical parts within the documents.
ServiceRegistry通过提高XML模式文档的可见性及文档内部的逻辑部分来实现管理。
The procedure performs a logical backup of all objects in the schema to the file system. Supported objects are.
这个过程将模式中的所有对象逻辑备份到文件系统中。
Holding data attributes in XML could allow a very flexible schema in which attributes can be removed or added without changing the logical database schema.
将数据属性保存在XML中可以允许采用非常灵活的模式，能在不用更改逻辑数据库模式的情况下添加或删除属性。
RDA supports visualization of XML schema definitions and mapping of the XML schema to logical data models.
RDA支持XML模式定义和XML模式到逻辑数据模型的映射的可视化。
If the above checks result in a valid schema being found embedded in the WSDL at the correct level, the schema is copied to the output logical tree.
如果上面的检查得到了在WSDL中的正确级别嵌入的有效模式，会将该模式复制到数据逻辑树中。
This article provides a group of powerful procedures that allow for schema-level operations such as logical backup, restore, and copy of all objects in a given schema.
本文提供了一组强大的过程，可以执行模式级操作，比如对给定模式中的所有对象进行逻辑备份、恢复和复制。
Upon loading, it parses the XML schema document into its logical parts: complex types, simple types, elements, and attributes.
在加载文档之后，Service Registry把XML模式文档解析为各个逻辑部分：复杂类型、简单类型、元素和属性。
One can, however, also take them up in a more logical order dictated by their relation to our schema of questions.
人们也可以依照它们与我们的问题模式之间的联系所含有的逻辑顺序掌握它们。
One can, however, also take them up in a more logical order dictated by their relation to our schema of questions.
人们也可以依照它们与我们的问题模式之间的联系所含有的逻辑顺序掌握它们。
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