data definition language是什么意思

网络释义

用法例句

Introduces the features and implementation of data definition language and supporting tools for O2DB, and objed-oriental database prototypal system, where the DDL is used to create, maintain and destroy user defined schemas (i.

然后给出了一个为Ｏ２ＤＢ开发的实用程序，即数据定义语言辅助工具Ｏ２ＤＢＤＤＬＴ。

In our model, report data definition language (RDDL) and report format description language (RFDL) are used with interpreters to interpreter them.

在该模型中,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。

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。

data and structure definition language compiler

数据和结构定义语言编译程序

On the Language "ε-N" "ε-δ" Teaching According to an Ordered Series of Number Limit Definition;

据数列极限定义谈“ε- N”“ε- δ”的语言教学

A FORTRAN language statement used to define arrays.

在FORTRAN语言中用于定义数组的语句。

SOME THEORIES ABOUT FUNCTION LIMITE ON THE DEFINITE OF D--EXPRESSION;

在D—语言定义下函数极限的有关定理

A program-defined hierarchical ordering of data for a record.

对记录而言，程序定义的数据分层次序。

Specify the default language and database for this login.

指定此登录的默认语言和数据库。

Definition and verification of semantics of data flow in UML Statecharts

定义及验证UML Statechart图中的数据流语义

Database Object Retrieval Based on Natural Language Query

基于自然语言语义的数据库目标检索研究

In DL/1, a method of identifying specific data within a DB/DC data base.

在数据语言DL/1中,标识DB/DC数据库内指定数据的一种方法。

Use it to analyze how interview subjects define and describe objects and actions that are part of their usage patterns, along with the language and grammar they use.

你还是应该使用研究数据来分析如何定义用户主体并描述对象和动作的语言及其可用语法。

Such collaboration implies agreement on APIs, core languages, foundation classes and domain specific metadata definitions.

这样的合作意味着在API、核心语言、基础类和域特定元数据定义等方面要达成协议。

data management host language statement

数据管理主语言语句

data manipulation language processor

数据操作语言处理程序

special telemetry data processing language

遥测数据处理专用语言

IMS data language

信息管理系统数据语言

d speech transmissio

内插数据与语言传输

natural language interface to database

数据库自然语言接口