How to reset SAP* password?

Hi,

I don't know the password for SAP* user for our SAND server client 000, I delete the user master records from USR02 table from DB level.

After that I am able to login to client 000 of the SAND server with user ID SAP* & password pass, now the problem is that when I tried to reset the password for SAP* it gives me error 'User SAP* does not exist'.

What should I do? please suggest.

Regards,

Rajesh