How to assign ranges ( select-option)to field symbol
I have following scenario
ranges : r_test1 for agr_1251,
r_test2 for agr_1251.
In runtime i am getting which range i have to populate in a field v_rname.for now let it me v_rname = 'r_test2'
i want to assign (v_rname ) to <field -symbol> ie is range to field symbol.
and i want to update the <field -symbol>-sign ='I'
<field -symbol>-LOW ='some value'
append <field -symbol>.
This is the logic i want to follow, for this how should i have to declare the field symbol ? I couldn't assign a range to field symbol . Please help me.