INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (27493, 'EPSG', 27493, '+proj=tmerc +lat_0=39.6666666666667 +lon_0=-8.13190611111111 +k=1 +x_0=180.598 +y_0=-86.99 +ellps=intl +towgs84=-231.034,102.615,26.836,-0.615,0.198,-0.881,1.786 +units=m +no_defs +type=crs', 'PROJCS["Datum 73 / Modified Portuguese Grid",GEOGCS["Datum 73",DATUM["Datum_73",SPHEROID["International 1924",6378388,297],TOWGS84[-231.034,102.615,26.836,-0.615,0.198,-0.881,1.786]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4274"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",39.6666666666667],PARAMETER["central_meridian",-8.13190611111111],PARAMETER["scale_factor",1],PARAMETER["false_easting",180.598],PARAMETER["false_northing",-86.99],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","27493"]]');