如何使用WKT？
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How to use WKT?
我正在做一个数据库分配 (TSQL)，并且已经获得了一些"众所周知的文本"可以使用。
我已经制作了表格：
DROP TABLE geometry_polygons;
GO
DROP TABLE geometry_points;
GO
DROP TABLE geometry_linestrings;
GO
CREATE TABLE geometry_polygons(
id INT PRIMARY KEY NOT NULL,
polygon geometry,
label VARCHAR(50),
area DECIMAL(10,4),
);
CREATE TABLE geometry_points(
id INT PRIMARY KEY NOT NULL,
point geometry,
label VARCHAR(501),
);
CREATE TABLE geometry_linestrings(
id INT PRIMARY KEY NOT NULL,
linestring geometry,
label VARCHAR(50),
LENGTH DECIMAL(10,4),
);
(POLYGON((175.0305935740471 -39.924665194652604,175.03033608198166 -39.924387504970255,175.0301563739777 -39.92449035313209,175.03041118383408 -39.92474952981466,175.0305935740471 -39.924665194652604)),
POLYGON((175.02037167549133 -39.91957403819063,175.01922369003293 -39.92019116822632,175.02052187919617 -39.921170336469736,175.02149283885956 -39.920446247016564,175.02037167549133 -39.91957403819063)),
LINESTRING(175.03047287464142 -39.92471250463434,175.03052115440366 -39.9247659854439,175.03007590770721 -39.924840035726646,175.02978086471558 -39.92509098331137,175.02977550029755 -39.92522262757816,175.03003299236298 -39.92538306868607,175.03039240837097 -39.92549002921579,175.031116604805 -39.92600426019882,175.0300168991089 -39.92684347686768,175.0209134817123 -39.919899060702676,175.02084910869598 -39.91996488785901),POINT(175.031116604805 -39.92600426019882),POINT(175.0300168991089 -39.92684347686768),POINT(175.02427697181705 -39.92248272908731),
POINT(175.02696990966797 -39.92459731505649),
POINT(175.0277853012085 -39.925181488771976),
POINT(175.02287685871124 -39.92140689812598),
POINT(175.02042531967163 -39.920339278607294),
POINT(175.03031730651853 -39.924552061955026))
DECLARE @g geometry;
SET @g=geometry::STGeomFromText('POLYGON((175.0305935740471 -39.924665194652604,175.03033608198166 -39.924387504970255,175.0301563739777 -39.92449035313209,175.03041118383408 -39.92474952981466,175.0305935740471 -39.924665194652604))', 4326);
INSERT INTO geometry_polygons (polygon) VALUES (@g);如何将几何点插入表格中？
我有这个工作;
DROP TABLE geometry_polygons;
GO
DROP TABLE geometry_points;
GO
DROP TABLE geometry_linestrings;
GO
CREATE TABLE geometry_polygons(
id INT PRIMARY KEY NOT NULL,
polygon geometry,
label VARCHAR(50),
area DECIMAL(10,4),
);
CREATE TABLE geometry_points(
id INT PRIMARY KEY NOT NULL,
point geometry,
label VARCHAR(501),
);
CREATE TABLE geometry_linestrings(
id INT PRIMARY KEY NOT NULL,
linestring geometry,
label VARCHAR(50),
LENGTH DECIMAL(10,4),
);
(POLYGON((175.0305935740471 -39.924665194652604,175.03033608198166 -39.924387504970255,175.0301563739777 -39.92449035313209,175.03041118383408 -39.92474952981466,175.0305935740471 -39.924665194652604)),
POLYGON((175.02037167549133 -39.91957403819063,175.01922369003293 -39.92019116822632,175.02052187919617 -39.921170336469736,175.02149283885956 -39.920446247016564,175.02037167549133 -39.91957403819063)),
LINESTRING(175.03047287464142 -39.92471250463434,175.03052115440366 -39.9247659854439,175.03007590770721 -39.924840035726646,175.02978086471558 -39.92509098331137,175.02977550029755 -39.92522262757816,175.03003299236298 -39.92538306868607,175.03039240837097 -39.92549002921579,175.031116604805 -39.92600426019882,175.0300168991089 -39.92684347686768,175.0209134817123 -39.919899060702676,175.02084910869598 -39.91996488785901),POINT(175.031116604805 -39.92600426019882),POINT(175.0300168991089 -39.92684347686768),POINT(175.02427697181705 -39.92248272908731),
POINT(175.02696990966797 -39.92459731505649),
POINT(175.0277853012085 -39.925181488771976),
POINT(175.02287685871124 -39.92140689812598),
POINT(175.02042531967163 -39.920339278607294),
POINT(175.03031730651853 -39.924552061955026))
DECLARE @g geometry;
SET @g=geometry::STGeomFromText('POLYGON((175.0305935740471 -39.924665194652604,175.03033608198166 -39.924387504970255,175.0301563739777 -39.92449035313209,175.03041118383408 -39.92474952981466,175.0305935740471 -39.924665194652604))', 4326);
INSERT INTO geometry_polygons (polygon) VALUES (@g);您可以使用 STGeomFromText 方法将 WKT 转换为 Sql Server Geometry http://msdn.microsoft.com/en-us/library/bb933823.aspx
由于您的下一个问题可能是"什么是 SRID 东西，那么"，这里有相关的 SO 问题 Geometry 专栏：STGeomFromText 和 SRID(什么是 SRID？)
类似这样的：
DROP TABLE geometry_polygons;
GO
DROP TABLE geometry_points;
GO
DROP TABLE geometry_linestrings;
GO
CREATE TABLE geometry_polygons(
id INT PRIMARY KEY NOT NULL,
polygon geometry,
label VARCHAR(50),
area DECIMAL(10,4),
);
CREATE TABLE geometry_points(
id INT PRIMARY KEY NOT NULL,
point geometry,
label VARCHAR(501),
);
CREATE TABLE geometry_linestrings(
id INT PRIMARY KEY NOT NULL,
linestring geometry,
label VARCHAR(50),
LENGTH DECIMAL(10,4),
);
(POLYGON((175.0305935740471 -39.924665194652604,175.03033608198166 -39.924387504970255,175.0301563739777 -39.92449035313209,175.03041118383408 -39.92474952981466,175.0305935740471 -39.924665194652604)),
POLYGON((175.02037167549133 -39.91957403819063,175.01922369003293 -39.92019116822632,175.02052187919617 -39.921170336469736,175.02149283885956 -39.920446247016564,175.02037167549133 -39.91957403819063)),
LINESTRING(175.03047287464142 -39.92471250463434,175.03052115440366 -39.9247659854439,175.03007590770721 -39.924840035726646,175.02978086471558 -39.92509098331137,175.02977550029755 -39.92522262757816,175.03003299236298 -39.92538306868607,175.03039240837097 -39.92549002921579,175.031116604805 -39.92600426019882,175.0300168991089 -39.92684347686768,175.0209134817123 -39.919899060702676,175.02084910869598 -39.91996488785901),POINT(175.031116604805 -39.92600426019882),POINT(175.0300168991089 -39.92684347686768),POINT(175.02427697181705 -39.92248272908731),
POINT(175.02696990966797 -39.92459731505649),
POINT(175.0277853012085 -39.925181488771976),
POINT(175.02287685871124 -39.92140689812598),
POINT(175.02042531967163 -39.920339278607294),
POINT(175.03031730651853 -39.924552061955026))
DECLARE @g geometry;
SET @g=geometry::STGeomFromText('POLYGON((175.0305935740471 -39.924665194652604,175.03033608198166 -39.924387504970255,175.0301563739777 -39.92449035313209,175.03041118383408 -39.92474952981466,175.0305935740471 -39.924665194652604))', 4326);
INSERT INTO geometry_polygons (polygon) VALUES (@g);请注意，您必须指定坐标参考系统，有时称为空间参考系统 (SRS)，例如 4326，表示纬度/经度，才能使许多空间功能正常工作。
编辑：您在更新后的问题中添加的几何图形是多边形、线串和点的混合体，因此，如果您想添加它们，您需要使用 GeometryCollection(可以采用多种类型)一口气，或将它们拆分为单独的条目。但是，像这样混合不同的几何类型通常是个坏主意，因为许多空间函数不适用于 GeometryCollections。