MEMORY USED BY SQL STATEMENT

select machine,to_char(SQL_EXEC_START,'DD-MON-YY HH24:MI:SS')            runtime,
       pga_allocated 
  from dba_hist_active_sess_history 
 where sql_id = '&sql_id';


EXAMPLE OUTPUT:

MACHINE                   RUNTIME                 PGA_ALLOCATED

------------------------- -------------------- ----------------
MYPCNAME                  13-JUL-16 16:18:40        807,153,664
MYPCNAME                  13-JUL-16 16:18:40        329,003,008
MYPCNAME                  13-JUL-16 16:18:40        274,280,448
MYPCNAME                  13-JUL-16 16:18:40        215,887,872
MYPCNAME                  13-JUL-16 16:18:40        204,615,680

SQL Outlines or SQL Profiles

SQL OUTLINES or PROFILES

set lines 170
set pages 100
col created      format a14
col type         format a6
col status       format a10
col fm           format a3
col profile_name format a30
col sql_text     format a50
col comp_data    format a50
SELECT created,
       type,
       status,
       force_matching fm,
       profile_name,
       sql_text,
       comp_data
  FROM DBA_SQL_PROFILES PROF,
       DBMSHSXP_SQL_PROFILE_ATTR ATTR
 WHERE prof.name = attr.profile_name
 ORDER BY status, created desc;

Parallel Query Processes - Parent / Child Details

Parallel Process Details including Master/Slave relationships

SQL
set lines 200
set pages 100
col username   format a10
col qcslave    format a10
col slaveset   format a8
col program    format a30
col sid        format a5
col slvinst    format a7
col state      format a8
col waitevent  format a30
col qcsid      format a5
col qcinst     format a6
col reqdop     format 999
col actdop     format 999
col secelapsed format 999,999
SELECT DECODE(px.qcinst_id,NULL,username, ' - '||LOWER(SUBSTR(pp.SERVER_NAME,LENGTH(pp.SERVER_NAME)-4,4) ) ) USERNAME, 
       DECODE(px.qcinst_id,NULL, 'QC', '(Slave)') "QCSLAVE" ,
       TO_CHAR( px.server_set) SLAVESET, 
       s.program PROGRAM, 
       TO_CHAR(s.SID) SID,
       TO_CHAR(px.inst_id) SLVINST, 
       DECODE(sw.state,'WAITING', 'WAIT', 'NOT WAIT' ) STATE,
       CASE  sw.state WHEN 'WAITING' THEN SUBSTR(sw.event,1,30) ELSE NULL END WAITEVENT ,
       DECODE(px.qcinst_id, NULL ,TO_CHAR(s.SID) ,px.qcsid) QCSID,
       TO_CHAR(px.qcinst_id) QCINST, 
       px.req_degree REQDOP, 
       px.DEGREE ACTDOP,
       DECODE(px.server_set,'',s.last_call_et,'') SECELAPSED
  FROM gv$px_session px, 
       gv$session s, 
       gv$px_process pp, 
       gv$session_wait sw
 WHERE px.SID=s.SID (+)
   AND px.serial#=s.serial#(+)
   AND px.inst_id = s.inst_id(+)
   AND px.SID = pp.SID (+)
   AND px.serial#=pp.serial#(+)
   AND sw.SID = s.SID
   AND sw.inst_id = s.inst_id
 ORDER BY DECODE(px.QCINST_ID,  NULL, px.INST_ID,  px.QCINST_ID), 
          px.QCSID,
          DECODE(px.SERVER_GROUP, NULL, 0, px.SERVER_GROUP), 
          px.SERVER_SET, 
          px.INST_ID

AWR Interval and Retention

SQL
select
       extract( day from snap_interval) *24*60+
       extract( hour from snap_interval) *60+
       extract( minute from snap_interval ) "Snapshot Interval",
       extract( day from retention) *24*60+
       extract( hour from retention) *60+
       extract( minute from retention ) "Retention Interval"
from dba_hist_wr_control;

SAMPLE OUTPUT
Snapshot Interval Retention Interval
----------------- ------------------
               60              10080

Explain Plan for any SQL ID

set echo on
set lines 300 pages 0
set trimspool on
--spool explain_plan.out
select t.*  
  from v$sql s, 
       table(dbms_xplan.display_cursor(s.sql_id, 
             s.child_number, 'TYPICAL ALLSTATS LAST')) t 
where s.sql_id = '&sql_id';

EXAMPLE OUTPUT
==============
SQL_ID  1fd4dhwcxj9c4, child number 1
-------------------------------------
select shadow from eisaudittrail where id = :1

Plan hash value: 3922317436

----------------------------------------------------------------------------------------------
| Id  | Operation                   | Name          | E-Rows |E-Bytes| Cost (%CPU)| E-Time   |
----------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT            |               |        |       |     3 (100)|          |
|   1 |  TABLE ACCESS BY INDEX ROWID| EISAUDITTRAIL |      1 |    93 |     3   (0)| 00:00:01 |
|*  2 |   INDEX UNIQUE SCAN         | PK_AUDITTRAIL |      1 |       |     2   (0)| 00:00:01 |
----------------------------------------------------------------------------------------------

Predicate Information (identified by operation id):
---------------------------------------------------

   2 - access("ID"=:1)