Looping chain of synonyms error

Question

I am trying to run the following query but get the error
ERROR at line 4:
ORA-06550: line 4, column 31:
PL/SQL: ORA-01775: looping chain of synonyms
Can anyone help?
declare
cursor c1 is
select w.ward_code, w.ward_name, p.id, p.blpu_keyval
from political.ward w, [email protected] p
where sdo_relate(w.shape, p.shape, 'mask=anyinteract querytype=window') = 'TRUE'
and rownum < 2;
begin
for rec1 in c1 loop
begin
update [email protected]
set war_id = rec1.ward_code
where id = rec1.id;
end;
end loop;
end;
/

Answer 1

note that this loop is recognized by oracle, but a loop over a dblink will just make your query loops for ages... until you kill it
SQL> connect scott/tiger@lsc62
Connected.
SCOTT@lsc62/10.1.0.4
SQL> create database link lsc68 connect to scott identified by tiger using 'LSC68';
Database link created.
SCOTT@lsc62/10.1.0.4
SQL> create synonym looping for looping@lsc68;
Synonym created.
SCOTT@lsc62/10.1.0.4
SQL> connect scott/tiger@lsc68;
Connected.
SCOTT@LSC68/10.1.0.3
SQL> create database link lsc62 connect to scott identified by tiger using 'LSC62';
Database link created.
SCOTT@lsc68/10.1.0.3
SQL> create synonym looping for looping@lsc62;
Synonym created.
SCOTT@lsc68/10.1.0.3
SQL> select * from looping;
^C
Terminated
{LSC68/10.1.0.3}oracle@dbsrv85a /tmp/tl30
$