INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (3900, 'EPSG', 3900, '+vunits=m +no_defs +type=crs', 'VERT_CS["N2000 height",VERT_DATUM["N2000",2005,AUTHORITY["EPSG","1030"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","3900"]]');