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。
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)。
The data Definition Language (DDL) part of SQL permits database tables to be created or deleted.
数据定义语言(ddl)为sql中的一部分，可以让数据表建立或是删除。
This project also has the Data Definition Language (DDL) files for the customer table for both DB2 and Oracle.
此项目还包含用于DB2和Oracle的客户表的数据定义语言 (DDL)文件。
You can also create database - level triggers that fire in response to data Definition Language (DDL) statements.
也可以创建数据库级别的触发器，将引发这些触发器以响应数据定义语言(ddl)语句。
The set of statements, expressed in data definition language, that completely describe the structure of a data base.
一组以数据解释语言来表达的语句集，该语句集完整地描述了数据库的结构。
The set of statements, expressed in data definition language, that completely describe the structure of a data base.
一组以数据定义语言来表达的语句集，该语句集完整地描述了数据库的结构。
You can determine the types of locks being used from the Data Definition Language (DDL) schema files used to create the database.
根据创建数据库所使用的数据定义语言 (DDL)模式文件，可以确定正在使用的锁类型。
The sample code provides the Data Definition Language (DDL) and Integration Exchange Format (IXF) files which make up the structure.
该样本代码提供了组成该结构的数据定义语言（Data Definition Language，DDL）和集成交换格式（Integration Exchange Format，IXF）文件。
Identifying these logical relationships is a job of the data administrator. A data definition language is used for this purpose.
确定这些逻辑关系是数据管理者的任务，由数据定义语言完成。
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。
You can refer to the Data Definition Language (DDL) statements in Listing 1 to create the database and table for the sample application.
您可以参考清单1中的数据定义语言（DDL）语句，为样例应用程序创建数据库和表。
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。
In our model, report data definition language and report format description language are used with interpreters to interpreter them.
在该模型中，我们引入了报表数据定义语言和报表格式描述语言，用相应的解释器解释它们。
DDL (data Definition Language) script for defining the database tables (if the starting point of the transformation is a class diagram).
用来定义数据库表(如果转换的起始点是一个类图)的DDL (Data Definition Language)脚本。
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。
You can execute both data definition language (DDL) and data manipulation language (DML) statements, and obtain and display the results using this tool.
您可以执行数据定义语言(DDL)和数据操作语言(dml)语句，并使用该工具来获取和显示结果。
Now you see the desired procedure and know that you should have specified a package name. The corrected data definition language (DDL) statement works
现在看到了所需的过程，并知道应该指定包名。
For example, for information technology systems, a change control system can include the specifications scripts, source code, data definition language, etc.
例如，对于信息技术系统而言，变更控制系统可以包括每一软件组件的技术规定说明书(脚本、源代码、数据定义语言等)。
It provides Data Definition Language (DDL) , Data Manipulation Language (DML) , as well built-in functions, such as:Sum, Average, Count, Maximum and Minimum.
还有求和、 求平均值、计数、 求最大值、 求最小值等库函数。
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。
The URI is in the mddl.org domain; mddl.org is the organization that maintains the Market Data Definition Language, an XML vocabulary in which custodian is one of many elements.
URI在 mddl.org域中；mddl.org是维护市场数据定义语言（Market Data Definition Language）这一XML词汇表的组织，custodian 是该词汇表中众多元素中的一个。
What's more, by running it with an automated build, you can painlessly check the latest representation of the Data Definition Language (DDL) from your version-control repository.
而且，通过自动构建来运行它，您就可以轻松地从您的版本控制库中检查数据定义语言（Data Definition Language，DDL）的最新显示。
Typically, when a DBA proposes changes, he provides scripts with data definition language (DDL), such as ALTER statements, to execute that change. To create DDL, do the following.
通常，当一位dba提议更改时，他使用数据定义语言(Data Definition Language,DDL)提供脚本—比如alter语句—来执行那个更改。
With one command from a single location, administrators can create new nodes and propagate the required Data Definition Language (DDL) across the grid to all the necessary locations.
使用一条来自单个位置的命令，管理员可以创建新节点，跨越整个网格传播所需的Data Definition Language (DDL)到所有需要位置。
For example, for information technology systems, a change control system can include the specificationsscripts, source code, data definition language, etc. for each software component.
例如，对于信息技术系统而言，变更控制系统可以包括每一软件组件的技术规定说明书脚本、源代码、数据定义语言等。
For example, for information technology systems, a change control system can include the specifications (scripts, source code, data definition language, etc.) for each software component.
例如，对于信息技术系统而言，变更控制系统可以包括每一软件组件的技术规定说明书(脚本、源代码、数据定义语言等)。
In most development environments, the changes are reversed by dropping all database objects and recreating them using the previous version of the SQL (data Definition Language [DDL]) scripts.
在大多数开发环境中，更改是通过删除所有数据库对象，并使用之前版本的SQL (DDL)脚本重新创建它们来逆转的。
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