SQLite: one more query

in case my computer freezes again: SELECT r.califa_id, r.el_mag, 0.396*r.el_hlma, g.el_hlma, f.sum, g.gc_sky - r.gc_sky FROM r_tot as r, gc_flags as f, gc as g where 0.396*r.el_hlma > 40 and r.califa_id = f.califa_id and r.califa_id = g.califa_id