[OpenSIPS-Users] How to fetch more than one row from a query

[Eli Hayun]

I have the following query :
avp_db_load("$ruri/username","$avp(s:callfwd)")

that returns more than one row. My questions are:
1) How to get the number of rows
2) How to fetch them one by one

I tried to use : $avp(s:callfwd[1]) but with no success

Thanks
Eli