get array and insert another table

Try:

$rows = ExecuteRows("SELECT uraian_pekerjaan,vol,sat,harga_sat,jumlah_harga FROM rab");
if (!empty($rows)) {
	foreach ($rows as $row) {
		$uraian = $row["uraian_pekerjaan"];
		$vol = $row["vol"];
		$sat = $row["sat"];
		$harga_sat = $row["harga_sat"];
		$jumlah_harga = $row["jumlah_harga"];
		Execute("INSERT INTO rab_pakai (uraian_pekerjaan, vol, sat, harga_sat, jumlah_harga) VALUES ('$uraian','$vol','$sat','$harga_sat','$jumlah_harga')");
	}
}