Start with some data definition.
首先从一些数据定义开始。
Create data definition language (DDL).
创建数据定义语言(DDL)。
Add transient data definition for log files.
为日志文件添加临时数据定义。
Dialog box to save data definition file changes.
保存数据定义变更的对话框。
Select the project folder in the data definition view.
选择数据定义视图中的项目文件夹。
To browse your file system to select an existing data definition file.
展开文件系统，选择既有的数据定义文件。
The DSC’s mission is to ensure service interoperability based on semantic data definition.
DSC的任务是确保基于语义数据定义的服务互操作性。
Type Trees are the data definition files that define the format of the input and output data.
类型树是定义输入和输出数据的格式的数据定义文件。
Expand the schema folder schema1 under CRM to see the Customer table in the data definition view.
展开CRM下的schema文件夹schema1，你可以在数据定义视图中看到表Customer。
You need to expand the project folder in the data definition view to see the newly created database.
你需要在数据定义视图中展开项目文件夹，以看到新创建的数据库。
If data definition in one data source is changed, the impact to other systems is multiplied and often unpredictable.
如果一个数据源中的数据定义被更改，对其他系统的影响就会加倍，而且通常很难预测。
A common approach to defining data is through inheritance - taking an existing data definition and adding parameters.
一种常见的定义数据的方法是通过继承——使用现有的数据定义并添加参数。
A physical data model can be used to generate data definition language (DDL) statements which can then be deployed to a database server.
可以使用物理数据模型来生成数据定义语言(ddl)语句，然后可以将这些语句部署到一个数据库服务器上。
Even still, with physical data models you can reverse engineer from the actual database or from the data definition language (DDL) file.
还可以对实际数据库或数据定义语言(DDL)文件进行反向工程，生成物理数据模型。
It's also pretty simple, and the data definition language (DDL), which is the language you use to create structures in SQL, is in Listing 4.
这个表也很简单，在SQL中创建结构使用的数据定义语言(DDL)如清单4所示。
This enables administrators to use familiar SQL data definition language (DDL) statements to create database objects for persisting their XML data.
这使管理员能够使用熟悉的SQL数据定义语言(DDL)语句来创建存储XML数据的数据库对象。
A new Crystal Report will then be created without actually connecting to any database, because this Crystal Report will be based on a data definition file.
不需要连接到任何数据库，就可以建立一个新的CrystalReport，因为这个Crystal Report是基于一个数据定义文件的。
Poor data quality's effect on the ability to make sound business decisions can be found both at the technical level and the business level of data definition.
数据质量对业务决策的影响可能出现在数据定义的技术层面和业务层面。
When you run SQL data definition statements from within a grid context on one server in the grid, those statements are propagated to all other servers in the grid.
在网格中的某台服务器上的网格上下文中运行SQL数据定义语句时，那些语句将被广播到网格中的其他所有服务器。
In this article, you saw how the Visual XForms Designer enables the major phases of form development: data definition, control creation, submission creation, and testing.
通过本文，您看到了VisualX FormsDesigner对表单开发主要阶段的支持：数据定义、控件创建、提交创建和测试。
Using this tool, you can capture the data definition language (DDL) for such objects in the source database, and apply it to recreate those objects in the target database.
使用这个工具，您可以在源数据库中捕获到定义这些对象使用的数据定义语言(DDL)，并在目标数据库中使用这些数据定义语言重新创建这些对象。
The db2look tool can extract data definition language (DDL) statements from a database in order to reproduce the database objects of a production database on a test database.
db2look工具能够从一个数据库中提取数据定义语言 (DDL)语句，以便在测试数据库中复制产品数据库的数据库对象。
Because the UCLA Health System USES XML for patient metadata, supporting a new electronic form in the PODS collection involves creating the data definition or schema for form content.
因为UCLA HealthSystem使用xml存储患者元数据，所以在PODS集合中支持新的电子表单需要为表单内容创建数据定义或模式。
Because a file was written and read according to definitions within the program code, there was no external data definition, making data sharing difficult and AD hoc reporting impossible.
由于是根据程序代码内的定义读写文件，没有外部数据定义，这使得数据共享很难且不可能进行专门报告。
For example if you run the data definition languages (DDLs) mentioned below, dbspace Dbdbspace of size 2 GB would be created first, and then database sampledb is created in the dbspace Dbdbspace.
举例来说，如果运行下面的数据定义语言(data definition language,DDL)，首先会创建2GB大小的dbspaceDbdbspace，然后在dbspace Dbdbspace中创建数据库sampledb。
Data Definition Language (DDL) and Data Manipulation Language (DML).
数据定义语言(DDL)和数据操作语言(DML)。
Data definition language (DDL) statements are not statements that can be rolled back.
数据定义语言(DDL)语句是不能回滚的语句。
A prime example is physical data models that directly manipulate SQL data Definition Language.
一个很好的例子就是直接操作SQL数据定义语言的物理数据模型。
The DDL (Data Definition Language) statements throughout this article are provided as a sample.
全文提供了示例DDL （数据定义语言）语句。
SQL has two main components: a Data Definition Language (DDL) and a Data Manipulation Language (DML).
SQL有两个主要部分：数据定义语言(DDL)和数据操纵语言(DML)。
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