STMPointFromText (geography Data Type)
Applies to: 
SQL Server
Azure SQL Database
Azure SQL Managed Instance
Returns a geography instance from an Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation, augmented with any Z (elevation) and M (measure) values carried by the instance.
Syntax
STMPointFromText ( 'multipoint_tagged_text', SRID )
Arguments
multipoint_tagged_text
Is the WKT representation of the geographyMultiPoint instance you wish to return. multipoint_tagged_text is an nvarchar(max) expression.
SRID
Is an int expression representing the spatial reference ID (SRID) of the geographyMultiPoint instance you wish to return.
Return Types
SQL Server return type: geography
CLR return type: SqlGeography
OGC type: MultiPoint
Remarks
This method throws a FormatException if the input is not well-formatted.
Examples
The following example uses STMPointFromText() to create a geography instance.
DECLARE @g geography;
SET @g = geography::STMPointFromText('MULTIPOINT(-122.360 47.656, -122.343 47.656)', 4326);
SELECT @g.ToString();