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.Бележка Methods on the geography
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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 ...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance SQL database in Microsoft Fabric Converts a geography instance that is not valid into a valid geography instance with a valid Open Geospatial Consortium (OGC) type. If an input object returns False for STIsValid(), ...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance SQL database in Microsoft Fabric The longitude property of the geography instance. Syntax syntaxsql Copy .Long Return Value SQL Server type: float CLR type: SqlDouble Remarks In the OpenGIS model, Long is defined only on...
SQL Server return type: float CLR return type: SqlDouble Remarks The result is expressed in the unit of measure defined by the Spatial Reference Identifier (SRID) of spatial data. STDistance() always returns null if the spatial reference IDs (SRIDs) of the geography instances do not match. ...
Geography is a spatial data type in SQL Server to accommodate any supported geometry based spatial reference system in the same field.
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/
The geography type represents data in a round-earth coordinate system. Both data types are implemented as .NET common language runtime (CLR) data types in SQL Server. 官网链接如下: https://msdn.microsoft.com/en-us/library/bb933790%28v=sql.110%29.aspx...
Returns a SqlGeography instance from an Open Geospatial Consortium (OGC) Well-Known Binary (WKB) representation. 命名空间: Microsoft.SqlServer.Types 程序集: Microsoft.SqlServer.Types(在 Microsoft.SqlServer.Types.dll 中) 语法 C# 复制 [SqlMethodAttribute(IsDeterministic = true, IsPrecise =...