INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (9288, 'EPSG', 9288, '+vunits=m +no_defs +type=crs', 'VERT_CS["MSL NL depth",VERT_DATUM["Mean Sea Level Netherlands",2005,AUTHORITY["EPSG","1270"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Depth",DOWN],AUTHORITY["EPSG","9288"]]');