INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (6927, 'EPSG', 6927, '+proj=tmerc +lat_0=1.36666666666667 +lon_0=103.833333333333 +k=1 +x_0=28001.642 +y_0=38744.572 +ellps=WGS84 +units=m +vunits=m +no_defs +type=crs', 'COMPD_CS["SVY21 / Singapore TM + SHD height",PROJCS["SVY21 / Singapore TM",GEOGCS["SVY21",DATUM["SVY21",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6757"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4757"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",1.36666666666667],PARAMETER["central_meridian",103.833333333333],PARAMETER["scale_factor",1],PARAMETER["false_easting",28001.642],PARAMETER["false_northing",38744.572],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","3414"]],VERT_CS["SHD height",VERT_DATUM["Singapore Height Datum",2005,AUTHORITY["EPSG","1140"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6916"]],AUTHORITY["EPSG","6927"]]');