標準號：BS EN ISO 19125-2-2005
中文標準名稱：地理信息.簡單特征選取.結構化查詢語言(SQL)選項
英文標準名稱：Geographic information - Simple feature access - SQL option
標準類型：A76
發(fā)布日期：2005/2/8 12:00:00
實施日期：2005/2/8 12:00:00
中國標準分類號：A76
國際標準分類號：35.240.70
適用范圍：This part of ISO 19125:2004 specifies an SQL schema that supports storage, retrieval, query and update of simple geospatial feature collections via the SQL Call Level Interface (SQL/CLI) and establishes an architecture for the implementation of feature tables.This part of ISO 19125:2004 defines terms to use within the architecture. of geographic information and defines a simple feature profile of ISO 19107. In addition, this part of ISO 19125:2004 describes a set of SQL Geometry Types together with SQL functions on those types. The Geometry Types and Functions described represent a profile of ISO 13249-3.This part of ISO 19125:2004 standardizes the names and geometric definitions of the SQL Types for Geometry and the names, signatures and geometric definitions of the SQL Functions for Geometry.This part of ISO 19125:2004 does not attempt to standardize and does not depend upon any part of the mechanism by which Types are added and maintained in the SQL environment, including the following:the syntax and functionality provided for defining types;the syntax and functionality provided for defining SQL functions;the physical storage of type instances in the database;specific terminology used to refer to User Defined Types, for example, UDT.