Laravel Raw SQL

$sql = DB::select(DB::raw("
    select fn_insert_pelamar_data_pribadi_pertanyaan
    (
        :v_nik, :v_kd_pert, :v_nm_pert, :v_jawaban, :v_jwb_detail, :v_nm_ins, :v_id
    )
"), [
    "v_nik"         => $request->nik,
    ":v_kd_pert"    => $request->kode_pertanyaan,
    ":v_nm_pert"    => $request->nama_pertanyaan,
    ":v_jawaban"    => $request->jawaban,
    ":v_jwb_detail" => $request->jawaban_detail,
    ":v_nm_ins"     => $request->nik
]);