INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (4203, 'EPSG', 4203, '+proj=longlat +ellps=aust_SA +nadgrids="National 84 (02.07.01).gsb" +no_defs +type=crs', 'GEOGCS["AGD84",DATUM["Australian_Geodetic_Datum_1984",SPHEROID["Australian National Spheroid",6378160,298.25],EXTENSION["PROJ4_GRIDS","National 84 (02.07.01).gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4203"]]');