ERROR: there is no parameter $1

Hi Friends

I am creating the function like

CREATE OR REPLACE FUNCTION getrowstest3(pname character varying,ppassword
character varying)

RETURNS SETOF getrows AS

$BODY$

declare

r getrows;

begin

for r in EXECUTE

'select
u.role_id,u.user_id,p.name,p.creation_date,p.telephone_number,p.email,p.rema
rks,p.city,p.state,p.country,p.postal_address,p.company_name,p.department_na
me,p.contact_person,

p.role_group,p.role_description,p.first_name,p.last_name,p.pincode,p.status,
p.department_id,p.designation_id,r.role_name,r.right_edit,r.right_filter,r.r
ight_search,r.right_browse,

r.right_print,r.right_download,r.right_admin_user,r.right_image_creator,r.ri
ght_vector_download,r.right_wps,r.right_queries_filter,r.right_google_map,r.
right_user_management,

r.right_route_analysis,r.right_legend,r.right_treeview,r.insert,r.update,r.d
elete,r.query,r.lock from ksdi.user_roles u,ksdi.principals p,ksdi.roles r
where p.PRINCIPAL_ID = u.USER_ID and

r.role_id = u.role_id and p.name =$1 and p.password = $2;'

loop

return next r;

end loop;

return;

end

$BODY$

LANGUAGE plpgsql VOLATILE

COST 100

ROWS 1000;

Where getrows is the type created by me;

It is created successfully.

I am trying to call the function I pgadmin with the following command

select * from getrowstest2('general_user','aipl(at)123');

I am getting the following error

ERROR: there is no parameter $1

LINE 5: r.role_id = u.role_id and p.name= $1 and p.password = $2

^

QUERY: select
u.role_id,u.user_id,p.name,p.creation_date,p.telephone_number,p.email,p.rema
rks,p.city,p.state,p.country,p.postal_address,p.company_name,p.department_na
me,p.contact_person,

p.role_group,p.role_description,p.first_name,p.last_name,p.pincode,p.status,
p.department_id,p.designation_id,r.role_name,r.right_edit,r.right_filter,r.r
ight_search,r.right_browse,

r.right_print,r.right_download,r.right_admin_user,r.right_image_creator,r.ri
ght_vector_download,r.right_wps,r.right_queries_filter,r.right_google_map,r.
right_user_management,

r.right_route_analysis,r.right_legend,r.right_treeview,r.insert,r.update,r.d
elete,r.query,r.lock from ksdi.user_roles u,ksdi.principals p,ksdi.roles r
where p.PRINCIPAL_ID = u.USER_ID and

r.role_id = u.role_id and p.name= $1 and p.password = $2

CONTEXT: PL/pgSQL function "getrowstest2" line 8 at FOR over EXECUTE
statement

********** Error **********

ERROR: there is no parameter $1

SQL state: 42P02

Context: PL/pgSQL function "getrowstest2" line 8 at FOR over EXECUTE
statement

Can anyone please help me to resolve the issue.

Thanks in Advance

Regards

Madhu.Lanka