SQL Server地理经纬度错误

CREATE TABLE Landmark (
    Id int,   
    Latitude FLOAT,
    Longitude FLOAT
)

INSERT Landmark VALUES
(1, 49.242458, -123.153465),
(2, 49.249381, -122.866683)

WITH GeographyLandmark AS
(
    SELECT Id, geography::STPointFromText('POINT(' + CAST(Latitude AS VARCHAR(20)) + ' ' + CAST(Longitude AS VARCHAR(20)) + ')', 4326) Location
    FROM Landmark
)

--this query calculates distance between point and localizations in meters
SELECT Id, geography::STPointFromText('POINT(' + CAST(49.2424566 AS VARCHAR(20)) + ' ' + CAST(-123.1534623 AS VARCHAR(20)) + ')', 4326).STDistance(Location) Distance
FROM GeographyLandmark

但我得到了一个错误:

在执行用户定义的例程或聚合“地理”期间发生.NET Framework错误: System.FormatException异常:24201:纬度值必须介于-90和90度之间。 System.FormatException异常: 在Microsoft.SqlServer.Types类型.GeographyValidator.ValidatePoint(双x,双y,可为空) 1 z, Nullable 1米) 在Microsoft.SqlServer.Types类型.验证程序.BeginFigure(双x,双y,可为空) 1 z,可为空 在Microsoft.SqlServer.Types类型ForwardingGeoDataSink.BeginFigure文件(双x,双y,可为空) 1 z,可为空 在Microsoft.SqlServer.Types类型.坐标反转geodatasink.BeginFigure(双x,双y,可为空) 1 z,可为空 在Microsoft.SqlServer.Types类型.WellKnownTextReader.ParsePointText文件(布尔括号) 在Microsoft.SqlServer.Types类型.WellKnownTextReader.ParseTaggedText文件(OpenGisType类型) 在Microsoft.SqlServer.Types类型.WellKnownTextReader。读(OpenGisType,Int32 srid) 在Microsoft.SqlServer.Types类型.SqlGeography.ParseText文件(OpenGisType类型,SqlChars taggedText,Int32 srid) .