No more data to read from socket

Question

My procedure looks like this:

Declare 
       cur_1        Sys_Refcursor;
       cur_2        Sys_Refcursor;
       v_1          VARCHAR2(30);
       v_2             


        

Answer 1

As jonearles mentioned you should write this in one SQL statement.

If you insist on using PL/SQL : you are doing way too much work yourself, declaring variables, open cursors, looping, assigning variables. Consider this PL/SQL:

begin
  for c1 in (select * from tab1@dblink1)
  loop
    for c2 in (Select * from tab2@dblink1 where col1 = c1.col1 and col2 = c1.col2)
    loop
      insert into local.tab3 values (c1.col1,c1.col2,c2.col1,c2.col2);
    end loop;
  end loop;
end;
/