这包括关于建立到数据源的连接的信息、远程服务器属性、数据类型和函数映射、索引信息以及远程对象统计信息。
This includes information about establishing connections to the data source, remote server attributes, data type and function mappings, index information, and remote object statistics.
类：用户定义的类型。一个类的声明建立了一个新的类的对象。
A programmer-defined type. A class definition creates a new class object.
首先，拟定了SDM3所支持的UDT分为列类型和行类型两种形式，能建立包含列类型的关系表和基于行类型的对象表。
The UDT introduced into SDM3 is divided into column type and row type. We can define relational table including column type and object table based on row type structure.
本文以福建省湿地为研究对象，建立福建湿地分类系统，探讨主要湿地类型及其分布特点。
With the wetlands in the whole province under study, the paper submits a classification system for Fujian wetlands and discusses the wetland types and their Spatio-temporal Changes.
本文以福建省湿地为研究对象，建立福建湿地分类系统，探讨主要湿地类型及其分布特点。
With the wetlands in the whole province under study, the paper submits a classification system for Fujian wetlands and discusses the wetland types and their Spatio-temporal Changes.
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