SQL Server return type: geographyCLR return type: SqlGeographyExamplesThe following example uses Point() to create a geography instance.SQL Copy DECLARE @g geography; SET @g = geography::Point(47.65100, -122.34900, 4326) SELECT @g.ToString(); See Also...
STArea() returns 0 if a geography instance contains only zero- and one-dimensional figures, or if it's empty.Note Methods on the geography data type that produce a metric return value will have different results based on the SRID of the instance used in the method. For more information on...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance SQL database in Microsoft Fabric The latitude property of the geography instance. Syntax Copy .Lat Return Types SQL Server type: float CLR type: SqlDouble Remarks In the OpenGIS model, Lat is defined only on geography in...
SQL Server 傳回型別:geography CLR 傳回類型:SqlGeography 備註 STGeomFromText()傳回之geography執行個體的 OGC 型別會設定為對應的 WKT 輸入。 如果輸入包含反腳架邊緣,這個方法會ArgumentException擲回 。 注意 列出點的順序對地理多邊形而言很重要。 這會決定多邊形區域是位於指定環形內部還是外部。 如需詳細資訊...
SQL Server return type: floatCLR return type: SqlDoubleRemarksSTArea() returns 0 if a geography instance contains only zero- and one-dimensional figures, or if it's empty.Piezīme Methods on the geography data type that produce a metric return value will have different results based on the ...
SQL Server 2008 provides the geography and geometry data types for working with this type of data.The geography data type works with round-earth information. The round-earth model factors the curved surface of the earth into account in its calculations. Position information is given in longitude ...
Gets the data type specification for the geography data type. 命名空间: Microsoft.SqlServer.Management.SqlParser.Metadata 程序集: Microsoft.SqlServer.Management.SqlParser(在 Microsoft.SqlServer.Management.SqlParser.dll 中) 语法 C# 复制 public static DataTypeSpec Geography { get; } 属性值 类型:Micr...
其他复杂查询 如其他文档:https://www.cnblogs.com/ytwy/p/5977848.html https://www.liangzl.com/get-article-detail-6302.html 参考文档:https://www.mssqltips.com/sqlservertip/1965/sql-server-geography-data-type/
Outer and inner rings in geography data type The OGC Simple Features for SQL Specification discusses outer rings and inner rings, but this distinction makes little sense for the SQL Server geography data type; any ring of a polygon can be taken to be the outer ring. For more information on...
地理空间数据类型 geography 是作为 SQL Server 中的 .NET 公共语言运行时 (CLR) 数据类型实现的。 此类型表示圆形地球坐标系中的数据。 geography 数据类型存储椭球体(圆形地球)数据,如 GPS 纬度和经度坐标SQL Server 。 SQL Server 支持 geography 空间数据类型的一组方法。 这些方法包括开放地理空间信息联盟 (OGC...