sql query to sub report

Sir,

i am new to vb6.0 crystal report

but i am managing to learn

i am developing a project in vb6.0

for that i need to create crystal report

i am using cr8.5

in that, i am passing sql query to the report

and its working fine, but when i use sub report in s not

let me know how i pass sql query to sub report

when i try my subreport shows all the data in my table

so pls help me.

thanks in advance.