Oracle 11g - Nested loops on outer joins

Question

Hello,
I have a select query that was working with no problems. The results are used to insert data into a temp table.
Recently, it would not complete executing. The explain plan shows a cartesian. But, there could be problems with using nested loops on the outer join. Interestingly, when I copy production code and rename the temp table and rename the view, it works.
Can someone take a look at the code and help. Maybe offer a suggestion on tuning too? Thanks.
CREATE TABLE "CT"
( "TN" VARCHAR2(30) NOT NULL ENABLE,
"COL_NAME" VARCHAR2(30) NOT NULL ENABLE,
"CDE" VARCHAR2(5) NOT NULL ENABLE,
"CDE_DESC" VARCHAR2(80) NOT NULL ENABLE,
"CDE_STAT" CHAR(1));
insert into CT (TN, COL_NAME, CDE, CDE_DESC, CDE_STAT)
values ('INDSD', 'STCD', 'U', 'RF', 'A');
insert into CT (TN, COL_NAME, CDE, CDE_DESC, CDE_STAT)
values ('AT', 'TCD', '001', 'RL', 'A');
insert into CT (TN, COL_NAME, CDE, CDE_DESC, CDE_STAT)
values ('AT', 'TCD', '033', 'PFR', 'A');
CREATE TABLE "IPP"
( "IND_ID" NUMBER(9,0) NOT NULL ENABLE,
"PLCD" VARCHAR2(5) NOT NULL ENABLE,
"CBCD" VARCHAR2(5));
insert into IPP (IND_ID, PLCD, CBCD)
values (2007, 'AS', '04');
insert into IPP (IND_ID, PLCD, CBCD)
values (797098, 'AS', '34');
insert into IPP (IND_ID, PLCD, CBCD)
values (797191, 'AS','04');
CREATE TABLE "INDS"
( "OPCD" VARCHAR2(5) NOT NULL ENABLE,
"IND_ID" NUMBER(9,0) NOT NULL ENABLE,
"IND_CID" NUMBER(*,0),
"GFLG" VARCHAR2(1),
"HHID" NUMBER(9,0),
"DOB" DATE,
"DOB_FLAG" VARCHAR2(1),
"VCD" VARCHAR2(5),
"VTDTE" DATE,
"VPPCD" VARCHAR2(4),
"VRCDTE" DATE NOT NULL ENABLE,
"VDSID" NUMBER(9,0),
"VTRANSID" NUMBER(12,0),
"VOWNCD" VARCHAR2(5),
"RCDTE" DATE,
"LRDTE" DATE
insert into INDS (OPCD, IND_ID, IND_CID, GFLG, HHID, DOB, DOB_FLAG, VCD, VTDTE, VPPCD, VRCDTE, VDSID, VTRANSID, VOWNCD, RCDTE, LRDTE)
values ('USST', 2007, 114522319, '', 304087673, to_date('01-01-1980', 'dd-mm-yyyy'), 'F', '2', to_date('06-04-2011 09:21:37', 'dd-mm-yyyy hh24:mi:ss'), '', to_date('06-04-2011 09:21:37', 'dd-mm-yyyy hh24:mi:ss'), 1500016, null, 'USST', to_date('06-04-2011 09:21:37', 'dd-mm-yyyy hh24:mi:ss'), to_date('18-07-2012 21:52:53', 'dd-mm-yyyy hh24:mi:ss'));
insert into INDS (OPCD, IND_ID, IND_CID, GFLG, HHID, DOB, DOB_FLAG, VCD, VTDTE, VPPCD, VRCDTE, VDSID, VTRANSID, VOWNCD, RCDTE, LRDTE)
values ('USST', 304087678, 115242519, '', 304087678, to_date('01-01-1984', 'dd-mm-yyyy'), 'F', '2', to_date('06-04-2011 09:21:39', 'dd-mm-yyyy hh24:mi:ss'), '', to_date('06-04-2011 09:21:39', 'dd-mm-yyyy hh24:mi:ss'), 1500016, null, 'USST', to_date('06-04-2011 09:21:39', 'dd-mm-yyyy hh24:mi:ss'), to_date('18-07-2012 21:52:53', 'dd-mm-yyyy hh24:mi:ss'));
CREATE TABLE "INDS_TYPE"
( "IND_ID" NUMBER(9,0) NOT NULL ENABLE,
"STCD" VARCHAR2(5) NOT NULL ENABLE);
insert into INDS_type (IND_ID, STCD)
values (2007, 'U');
insert into INDS_type (IND_ID, STCD)
values (313250322, 'U');
insert into INDS_type (IND_ID, STCD)
values (480058122, 'U');
CREATE TABLE "PLOP"
( "OPCD" VARCHAR2(5) NOT NULL ENABLE,
"PLCD" VARCHAR2(5) NOT NULL ENABLE,
"PPLF" VARCHAR2(1));
insert into PLOP (OPCD, PLCD, PPLF)
values ('USST', 'SP', 'Y');
insert into PLOP (OPCD, PLCD, PPLF)
values ('PMUSA', 'ST', '');
insert into PLOP (OPCD, PLCD, PPLF)
values ('USST', 'RC', '');
CREATE TABLE "IND_T"
( "OPCD" VARCHAR2(5) NOT NULL ENABLE,
"CID" NUMBER(9,0) NOT NULL ENABLE,
"CBCD" VARCHAR2(5),
"PF" VARCHAR2(1) NOT NULL ENABLE,
"DOB" DATE,
"VCD" VARCHAR2(5),
"VOCD" VARCHAR2(5),
"IND_CID" NUMBER,
"RCDTE" DATE NOT NULL ENABLE
insert into IND_T (OPCD, CID, CBCD,PF, DOB, VCD, VOCD, IND_CID, RCDTE)
values ('JMC', 2007, '04', 'F',to_date('11-10-1933', 'dd-mm-yyyy'), '2', 'PMUSA', 363004880, to_date('30-09-2009 04:31:34', 'dd-mm-yyyy hh24:mi:ss'));
insert into IND_T (OPCD, CID, CBCD,PF, DOB, VCD, VOCD, IND_CID, RCDTE)
values ('JMC', 2008, '04', 'N',to_date('01-01-1980', 'dd-mm-yyyy'), '2', 'PMUSA', 712606335, to_date('05-04-2013 19:36:05', 'dd-mm-yyyy hh24:mi:ss'));
CREATE TABLE "IC"
( "CID" NUMBER(9,0) NOT NULL ENABLE,
"CF" CHAR(1));
insert into IC (CID, CF)
values (2007, 'N');
insert into IC (CID, CF)
values (100, 'N');
insert into IC (CID, CF)
values (200, 'N');
CREATE OR REPLACE FORCE VIEW "INDSS_V" ("OPCD", "IND_ID", "IND_CID", "GFLG", "HHID", "DOB", "DOB_FLAG", "VCD", "VTDTE", "VPPCD", "VRCDTE", "VDSID", "VTRANSID", "VOWNCD", "RCDTE", "LRDTE") AS
SELECT DISTINCT a.OPCD, a.IND_ID, a.IND_CID, a.GFLG, a.HHID,
a.DOB, a.DOB_flag, a.VCD, a.VTDTE,
a.VPPCD, a.VRCDTE, a.VDSID, a.VTRANSID,
a.VOWNCD, a.RCDTE, a.LRDTE
FROM INDS a, INDS_type b
WHERE a.IND_ID = b.IND_ID
AND b.STCD in (select CDE
from CT --database link
where TN = 'INDSD'
and COL_NAME = 'STCD'
and CDE_STAT = 'A') ;
--insert /*+ parallel(IND_T,2) */ into IND_T
select /*+ parallel(a,4) */
a.OPCD as OPCD
, a.IND_ID as CID
, b.CBCD as CBCD
, NULL as BFCD
, 'N' as PF
, a.DOB as DOB
, a.VCD as VCD
, a.VOWNCD as VOCD
, a.IND_CID as IND_CID
, a.RCDTE as RCDTE
from INDSS_V a
, (select /*+ parallel(IPP,4) */ * from IPP IPP , PLOP PLO
where plo.PLCD = ipp.PLCD
and PPLF='Y') b
, IC c
where a.IND_ID = b.IND_ID (+)
and a.OPCD = b.OPCD (+)
and a.IND_ID = c.CID
and c.CF = 'N';

Answer 1

Please consult
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Sybrand Bakker
Senior Oracle DBA
Edited by: sybrand_b on 10-apr-2013 17:57