Can We have two VISAs Simultaneously

Hi,

I would like to know whether we can have two visas at the same time.
One of my friend currently holds valid SAUDI work permit visa now, side by he got one offer from Dubai. So in that case can he join Dubai job by not exiting here in Saudi, he is planing to take a long leave say 6 months.

Appreciate suggestions.

Thnks Haasher;
Im also looking the ans from the ones; who already experienced the same situation.

It is possible and employment visa in Saudi Arabia has no relationship with the one in Dubai. But sometimes embassy staff insists on cancelling the other one because they feel you're trying to play fraud.