sql server geometry数据的CRUD

 1 IF OBJECT_ID ( 'dbo.SpatialTable', 'U' ) IS NOT NULL   
 2     DROP TABLE dbo.SpatialTable;  
 3 GO  
 4   
 5 CREATE TABLE SpatialTable   
 6     ( id int IDENTITY (1,1),  
 7     GeomCol1 geometry,   
 8     GeomCol2 AS GeomCol1.STAsText() );  
 9 GO  
10   
11 INSERT INTO SpatialTable (GeomCol1)  
12 VALUES (geometry::STGeomFromText('LINESTRING (100 100, 20 180, 180 180)', 0));  
13   
14 INSERT INTO SpatialTable (GeomCol1)  
15 VALUES (geometry::STGeomFromText('POLYGON ((0 0, 150 0, 150 150, 0 150, 0 0))', 0));  
16 GO

17INSERT INTO SpatialTable (GeomCol1) 
18VALUES (geometry::STGeomFromText('POINT (3,4)', 0)); 

以上是geometry数据的插入；修改也是类似，不赘述了；

查询同sql的普通查询，如果需要获取文本可以使用对应的方法，如下：

select GeomCol1.STAsText() from SpatialTable     

sql的其他geometry处理的方法，请参考https://docs.microsoft.com/en-us/sql/t-sql/spatial-geography/ogc-methods-on-geography-instances?view=sql-server-ver15