But even with a data dictionary in hand, there can be problems.
数据字典中的所有元素都以分层树的形式构造。
All the elements in the data dictionary are structured in a hierarchical tree.
述信息,这类信息称为数据字典,或系统目录。
This information is known as the data dictionary or the system catalog.
随后,我们就开始设计数据字典。
And then you start to talk about data dictionaries.
ANALYZED表明操作中引用的对象被分析过了,在数据字典中有该对象的统计信息可以供CBO使用。
ANALYZED that operate in the referenced object is analyzed, and in the data dictionary of the object of statistical information for the CBO to use.
创建ER图表和数据字典确实有点费时但对其他开发人员要了解整个设计却是完全必要的。
Create ER diagrams and data dictionary is indeed a time-consuming, but for other developers to understand the overall design is absolutely necessary.
企业范围的部署通常具有多个数据字典(每个部门或产品领域对应一个)以及一个企业模型。
Enterprise-wide deployments typically have multiple data dictionaries- one for each division or product area, as well as an enterprise model.
SYSTEM表空间包含了数据字典-以及(默认的)索引和集群。
The SYSTEM tablespace contains the data dictionary- and often(by default) indexes and clusters.
传统上,这是通过使用数据字典来完成的--这些文件旨在解释数据结构中每个字段的内容和格式。
Traditionally, this has been done using data dictionaries- documents that purport to explain the contents and format of every field in a data structure.
此模型的核心是“数据字典”,它描述软件使用或产生的所有数据对象。
At the core of the model lies the data dictionary- a repository that contains descriptions of all data objects consumed or produced by the software.
数据字典可以是简单的业务术语层次结构列表,也可以是包含业务术语之间复杂关系的复杂语义模型。
Data dictionaries can be a simple hierarchical list of business terms, or a more complex semantic model with complex relationships between business terms.
没有数据字典,这些数据集很难、甚至不可能被正确地分析。
Without the data dictionary, these data sets could be difficult or even impossible to analyze properly.
EME支持创建一个或多个数据字典或概念性的数据模型。
The EME supports the creation of one or more data dictionaries or conceptual data models.
数据字典是一系列只读的表,用来提供数据库的信息。
The data dictionary is a set of read-only tables that store information about the database.
架构师越来越意识到仅仅提供数据字典并不足以支持日益丰富的信息集成。
Architects realize that data dictionaries alone are not enough to support richer information integration.
能源公司项目工程师BrianDavis称数据字典“极具价值”。
Brian Davis, Project Engineer at an energy company calls data dictionaries"invaluable.".
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