How to declare a cursor after the begin section of an Oracle PL/SQL procedure -


i new in oracle pl/sql. trying write procedure first data column in table , assign variable. each row/value in result, perform query , loop through result of new query , perform various inserts , updates. after go outer loop , continue sequence. attempt follows:

create or replace procedure cmsadmin.proc_rfc_upd_new_mrsp      ecode number;     emesg varchar2(200);      cursor y (select distinct cod_unicom fcode rfc_upd_new_mrsp_pool);  begin  t in y loop       cursor x (                  select distinct s.nif premise,a.cod_unicom reading, a.cod_lect_area area                 sumcon s, lect_areas                  a.cod_unicom  = t.fcode                 , s.num_sum in (select num_sum rfc_upd_new_mrsp_pool cod_unicom = t.fcode)                 );            met in x loop               /* store record trace*/             insert rfc_upd_new_mrsp(nif, cod_unicom,cod_lect_area, usuario, f_actual, programa)              values (met.premise, met.reading, met.area, user, sysdate,'rfc_mrsp_fpl');               update  fincas_per_lect fp             set               fp.num_mrsp = met.reading,              fp.aol_fin=0,              fp.num_itin =0,              fp.usuario = user, fp.programa = 'rfc_mrsp_fpl', fp.f_actual = sysdate              fp.nif=met.premise;              update   apmedida_ap  fp             set               fp.num_mrsp = met.reading,              fp.usuario = user, fp.programa = 'rfc_mrsp_fpl', fp.f_actual = sysdate                fp.nif_apa = met.premise;              update fincas fp               set area_lect = met.area,                 fp.usuario = user, fp.programa = 'rfc_mrsp_fpl', fp.f_actual = sysdate                 nif = met.premise;          end loop;  end loop;      commit;     dbms_output.put_line('the procedure proc_rfc_upd_new_mrsp executed successfully');  exception     when others         ecode := sqlcode;         emesg := sqlerrm;         dbms_output.put_line('the procedure proc_rfc_upd_new_mrsp fail folowing error '|| to_char(ecode) || ' , error message: ' || emesg);         null; end proc_rfc_upd_new_mrsp;

as can see have cursor after loop inside begin. allowed? script doesn't work expected. problem? appreciate help

to this, you'd need declare new block:

for t in y loop      declare     cursor x (                  select distinct s.nif premise,a.cod_unicom reading, a.cod_lect_area area                 sumcon s, lect_areas                  a.cod_unicom  = t.fcode                 , s.num_sum in (select num_sum rfc_upd_new_mrsp_pool cod_unicom = t.fcode)                 );       begin          met in x loop  ...         end loop;      end;

however, don't quite see why can't declare cursor along cursor y, defined parameter:

cursor x (p_fcode rfc_upd_new_mrsp_pool.cod_unicom%type) (              select distinct s.nif premise,a.cod_unicom reading, a.cod_lect_area area             sumcon s, lect_areas              a.cod_unicom  = p_fcode             , s.num_sum in (select num_sum rfc_upd_new_mrsp_pool cod_unicom = p_fcode)             );

you reference cursor thusly:

for met in x(t.fcode) loop

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