English translation for "schema description language"
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- 模式描述语言骨架
Related Translations:
- Example Sentences:
| 1. | Aiming at this problem , the main research issues and achievements in this paper are as follows : bi - directional data transformation between rdb and xml with semantic constraints preserved for most of existing researches on static data transformation between xml and rdb , dtd is taken as the schema description language for xml , and the semantic constraints are often lost during the transformation process . to overcome these disadvantages , the author adopts xml - schema , a standard schema description language proposed by w3c to replace dtd , as the description method owing to its more powerful functions than dtd , and of course with the syntax much more complicated . after analyzing the constraints characteristics in both xml - schema and relational schema , a semantic constraints - preserved algorithm is proposed which can realize the bi - directional schema mapping between rdb and xml through a formalized description of xml based on regular tree and a general expression for relational schema based on direct graph approach
保留语义约束的xml与rdb双向静态数据转换技术现有研究大多采用dtd ( documenttypedefinition ，文档类型定义)作为xml的模式描述语言，并且在模式映射过程中丢失语义约束信息，本文分析了xml - schema ( xml - schema采用与dtd完全不同的语法，数据描述能力更强同时也更为复杂，已被w3c确定为替代dtd作为xml模式描述语言的标准)及关系模式的语义约束特征，通过基于正则树的xml形式化描述方法以及基于有向图的一般关系模式表示方法的研究，建立保留语义约束的xml - schema与关系模式的双向模式映射算法，实现了xml与rdb的双向数据转换，较好地解决了xml与rdb在静态数据转换层面的数据集成问题，可有效满足企业大量rdb数据面向xml的发布以及与日俱增的xml数据存入rdb的应用需求。 | | 2. | Virtual ontology data source shields the detail of low - leveldatasource , andprovides aconsistentaccessinterfacefortopperusers . wediscussedthemethodof transforming relation database to virtual ontology data source ( which is also called databasedeep annotation ) . we designed the database schema description language and mapping rulesdescriptionlanguage , andgavearesolventforrelationmodeling . at last , we bring out a framework of general natural language interface , and implement adatabasenaturallanguageinterface . makinguseofaspecificexample , wemadeanevaluationofthissystem
我们具体讨论了从关系数据库系统到虚拟本体数据源的转换(也称为数据库深度注解) ,定义了关系数据库的结构知识描述语言和通用的映射规则描述语言,给出了多元关系建模的解决方案。 |
- Similar Words：
- "schema data description language" English translation, "schema data item" English translation, "schema ddl" English translation, "schema declaration" English translation, "schema defining length" English translation, "schema designer" English translation, "schema image" English translation, "schema import feature" English translation, "schema import processing" English translation, "schema level description" English translation
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