Xplain plan of sql_id from cursor - oracle database script

--- First get the child number of the sql_id .One sql_id can have multiple child number( one for each plan_hash_value)    SQL> select sql_id,child_number,plan_hash_value from gv$sql where sql_id='9n2a2c8pvu6bm';
SQL_ID CHILD_NUMBER PLAN_HASH_VALUE -------------  ------------ ---------------
9n2a2c8pvu6bm 1 13761463 --- Now get the explain plan for cursor:

SELECT *
FROM TABLE(DBMS_XPLAN.DISPLAY_CURSOR('&sqlid',&child_number));