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LRS SDO_GEOMETRY to "LINESTRING M" WKT format

I suppose I could use the REPLACE() function to replace LINESTRING ( with LINESTRING M (: select replace(sdo_geom, 'LINESTRING (', 'LINESTRING M (' ) as wkt_m from ( select ...
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QGIS rotate CRS around a new centre

I suggest to use a hotine oblique mercator WKT PROJCRS["WGS 84 / NZ Oblique Mercator", BASEGEOGCRS["WGS 84", DATUM["World Geodetic System 1984", ELLIPSOID[&...
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Spatialite: insert points, do knn search. how to?

Before you can use KNN or KNN2 the table must be registered into "geometry_columns" with RecoverGeometryColumn, and it must have a spatial index created with CreateSpatialIndex. The ...
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