How to get execution plan from plsql

Question

i have a nasty sql inside plsql and want to get the execution plan. what is the best way of getting it.
v_sql:= 'select loop_f1.loopid
         FROM rdw.WDM_Prov seg_f1,
             rdw.WDM_loop_Prov_association assoc_f1,
             rdw.WDM_potential_loop_makeup loop_f1,
             rdw.WDM_Prov seg_fx,
             rdw.WDM_loop_Prov_association assoc_fx,
             TABLE(CAST( :loopInfo as ermarc.t_CustomerLoopElement)) input_loop
        WHERE loop_f1.CO_illc =  :f1_co_illc
        AND loop_f1.LOOPID = assoc_f1.LOOPID
        AND  assoc_f1.Prov_NUMBER = :f1_Prov_number
        AND  assoc_f1.Prov_ID = seg_f1.Prov_ID
        AND  Upper(TRIM(LEADING 0 FROM  seg_f1.CABLE))  =:f1_cable
        AND  (seg_f1.low_rep <= :f1_rep AND  seg_f1.high_rep >= :f1_rep)
        AND  seg_f1.TERMSYSID = :f1_termsysid
        AND  assoc_f1.Prov_number = 1
        AND  loop_f1.loopid = assoc_fx.loopid
        AND  assoc_fx.Prov_ID = seg_fx.Prov_id
        AND  assoc_fx.Prov_number = input_loop.Prov_number
        AND   Upper(TRIM(LEADING 0 FROM  seg_fx.CABLE)) = Upper(TRIM(LEADING 0 FROM  input_loop.cable))
        AND  (seg_fx.low_rep <= input_loop.rep and seg_fx.high_rep >= input_loop.rep)
        AND  seg_fx.termsysid = input_loop.termsysid
        GROUP BY loop_f1.loopid
        HAVING MAX(assoc_fx.Prov_NUMBER) = :v_cntProvs
        AND  COUNT(CASE WHEN assoc_fx.Prov_number = input_loop.Prov_number THEN 1 ELSE 0 END) = :v_cntProvs';
EXECUTE IMMEDIATE v_sql BULK COLLECT  INTO v_looplist
USING loopInfo,
       loopInfo(1).co_illc,
       loopInfo(1).Prov_number,
       Upper(TRIM(LEADING 0 FROM   loopInfo(1).cable)),
       loopInfo(1).rep,
       loopInfo(1).rep,
       loopInfo(1).termsysid,
       v_cntProvs,
       v_cntProvs;

Answer 1

Sorry, a tag or a statement_id is a way of identifying a particular SQL statement by an identifier other than its SQL_ID to make getting the plan easier. If I want the plans for two different statements, I can provide a statement_id and use that as an argument for DBMS_XPLAN later on.
SQL> ed
Wrote file afiedt.buf
  1  begin
  2    execute immediate
  3      'explain plan set statement_id = ''JCAVE_DEPT'' for select * from dept'
  4    execute immediate
  5      'explain plan set statement_id = ''JCAVE_EMP'' for select * from emp';
  6* end;
SQL> /
PL/SQL procedure successfully completed.
SQL> select *
  2    from table( dbms_xplan.display( null, 'JCAVE_DEPT', null ));
PLAN_TABLE_OUTPUT
Plan hash value: 3383998547
| Id  | Operation         | Name | Rows  | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT  |      |     4 |   120 |     3   (0)| 00:00:01 |
|   1 |  TABLE ACCESS FULL| DEPT |     4 |   120 |     3   (0)| 00:00:01 |
Note
PLAN_TABLE_OUTPUT
   - dynamic sampling used for this statement
12 rows selected.
SQL> ed
Wrote file afiedt.buf
Wrote file afiedt.buf
  1  select *
  2*   from table( dbms_xplan.display( null, 'JCAVE_EMP', null ))
SQL> /
PLAN_TABLE_OUTPUT
Plan hash value: 3956160932
| Id  | Operation         | Name | Rows  | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT  |      |    14 |  1218 |     3   (0)| 00:00:01 |
|   1 |  TABLE ACCESS FULL| EMP  |    14 |  1218 |     3   (0)| 00:00:01 |
Note
PLAN_TABLE_OUTPUT
   - dynamic sampling used for this statement
12 rows selected.Justin