How to run execute immdiate with variables

Question

Hi friends,
How to run execute immdiate with variables in v_stmt below?
I dont know how to declare the value of i here.
Set serveroutput on;
DECLARE
   i        VARCHAR (20);
   v_stmt   VARCHAR2 (100);
   CURSOR c
   IS
      SELECT sqlid FROM temp1;
BEGIN
   OPEN c;
   LOOP
      FETCH c INTO i;
      EXIT WHEN c%NOTFOUND;
      DBMS_OUTPUT.put_line (i);
      v_stmt := 'select * from table(dbms_xplan.display_cursor('&i',null))'
      execute immediate v_stmt;
   END LOOP;
   CLOSE c;
END;
/Regds,
Kunwar.

Answer 1

You first need to use a bind variable (named ':v' in SQL statement in my example):
set serveroutput on;
DECLARE
   i        VARCHAR (20);
   v_stmt   VARCHAR2 (100);
   CURSOR c
   IS
       -- modified for a quick test
      SELECT sql_id FROM v$sql where child_number > 2;
BEGIN
   OPEN c;
   LOOP
      FETCH c INTO i;
      EXIT WHEN c%NOTFOUND;
      DBMS_OUTPUT.put_line (i);
      v_stmt := 'select * from table(dbms_xplan.display_cursor(:v,null))';
      execute immediate v_stmt using i;
   END LOOP;
   CLOSE c;
END;
/However because your SELECT statement returns several rows you need to adapt your code to process all rows returned (as already suggested in first reply to your message).
Instead of using PL/SQL, I recommend to generate a SQL file using only SQL and then to run the generated SQL file.
For example:
spool edx.sql
set serveroutput on
declare
v_stmt varchar2(100);
v_q char(1):='''';
begin
dbms_output.put_line('spool edx.log');
for s in (select sql_id from v$sql where child_number >2)
loop
  dbms_output.put_line('select * from table(dbms_xplan.display_cursor(' || v_q || s.sql_id || v_q || ',null));');
end loop;
dbms_output.put_line('exit');
end;
spool ofThis generates a SQL file similar to :
spool edx.log
select * from table(dbms_xplan.display_cursor('5rygsj4dbw6jt',null));
select * from table(dbms_xplan.display_cursor('5rygsj4dbw6jt',null));
select * from table(dbms_xplan.display_cursor('5rygsj4dbw6jt',null));
select * from table(dbms_xplan.display_cursor('fsbqktj5vw6n9',null));
select * from table(dbms_xplan.display_cursor('6q42j0018w7t8',null));
select * from table(dbms_xplan.display_cursor('a5mmhrrnpwjsc',null));
select * from table(dbms_xplan.display_cursor('3c1kubcdjnppq',null));
select * from table(dbms_xplan.display_cursor('3c1kubcdjnppq',null));
select * from table(dbms_xplan.display_cursor('9gkq7rruycsjp',null));
select * from table(dbms_xplan.display_cursor('f0wj261bm8snd',null));
select * from table(dbms_xplan.display_cursor('ab3swhv5g138y',null));
select * from table(dbms_xplan.display_cursor('6vgvyh4xw9c5g',null));
select * from table(dbms_xplan.display_cursor('ak5crjygnpk60',null));
select * from table(dbms_xplan.display_cursor('9p6bq1v54k13j',null));
select * from table(dbms_xplan.display_cursor('19x1189chq3xd',null));
select * from table(dbms_xplan.display_cursor('7sx5p1ug5ag12',null));
select * from table(dbms_xplan.display_cursor('730vdzhng6m6g',null));
select * from table(dbms_xplan.display_cursor('730vdzhng6m6g',null));
select * from table(dbms_xplan.display_cursor('0v3dvmc22qnam',null));
select * from table(dbms_xplan.display_cursor('0v3dvmc22qnam',null));
select * from table(dbms_xplan.display_cursor('a1zv6wju3ftgv',null));
select * from table(dbms_xplan.display_cursor('7ng34ruy5awxq',null));
select * from table(dbms_xplan.display_cursor('7ng34ruy5awxq',null));
select * from table(dbms_xplan.display_cursor('b2gnxm5z6r51n',null));
select * from table(dbms_xplan.display_cursor('b2gnxm5z6r51n',null));
select * from table(dbms_xplan.display_cursor('g4gp07gt2z920',null));
select * from table(dbms_xplan.display_cursor('1gu8t96d0bdmu',null));
select * from table(dbms_xplan.display_cursor('g00cj285jmgsw',null));
select * from table(dbms_xplan.display_cursor('g00cj285jmgsw',null));
select * from table(dbms_xplan.display_cursor('g00cj285jmgsw',null));
select * from table(dbms_xplan.display_cursor('bn4b3vjw2mj3u',null));
select * from table(dbms_xplan.display_cursor('38243c4tqrkxm',null));
select * from table(dbms_xplan.display_cursor('2abjfnvy5rkyg',null));
select * from table(dbms_xplan.display_cursor('350f5yrnnmshs',null));
select * from table(dbms_xplan.display_cursor('350f5yrnnmshs',null));
select * from table(dbms_xplan.display_cursor('3s1yukp05bzg6',null));
select * from table(dbms_xplan.display_cursor('3s1yukp05bzg6',null));
select * from table(dbms_xplan.display_cursor('1tgukkrqj3zhw',null));
exit
PL/SQL procedure successfully completed.Edited by: P. Forstmann on 20 mars 2013 19:06
Edited by: P. Forstmann on 20 mars 2013 19:33