Query with EXISTS & ORDER BY is slow on 10g

Question

On Oracle 10g, the below query is taking 100 secs to return 500 records. It returns in 1 sec on Oracle 8.1.6. If I remove the ORDER BY clause it executes in 1 second on Oracle 10g also. I need to keep the ORDER BY and have to tune it for Oracle 10g. Optimizer is set to CHOOSE.
Any suggestions please...
Query & Table details:
--------- 8< ---------
SELECT T1.SRC_ATTR_1, T1.SRC_ATTR_2, T1.DST_ATTR_1, T1.DST_ATTR_2
FROM TBL_DIRECTION_1 T1
WHERE EXISTS
(SELECT 1
FROM TBL_DIRECTION_2 T2, TBL_MASTER SRC_M, TBL_MASTER DST_M
WHERE SRC_M.OBJ_ID = T2.SRC_OBJ_ID AND DST_M.OBJ_ID = T2.DST_OBJ_ID AND
SRC_M.ATTR_1 = T1.SRC_ATTR_1 AND SRC_M.ATTR_2 = T1.SRC_ATTR_2 AND
DST_M.ATTR_1 = T1.DST_ATTR_1 AND DST_M.ATTR_2 = T1.DST_ATTR_2)
ORDER BY 1, 2, 3, 4
1. TBL_OBJ_MASTER
columns
OBJ_ID
ATTR_1
ATTR_2
keys, constraints & indexes
PRIMARY KEY (OBJ_ID)
UNIQUE INDEX (ATTR_1, ATTR_2)
2. TBL_DIRECTION_1
columns
SRC_ATTR_1
SRC_ATTR_2
DST_ATTR_1
DST_ATTR_2
keys, constraints & indexes
UNIQUE CONSTRAINT (SRC_ATTR_1, SRC_ATTR_2, DST_ATTR_1, DST_ATTR_2)
INDEX (SRC_ATTR_1, SRC_ATTR_2)
3. TBL_DIRECTION_2
columns
SRC_OBJ_ID
DST_OBJ_ID
keys, constraints & indexes
PRIMARY KEY (SRC_OBJ_ID, DST_OBJ_ID)
INDEX (SRC_OBJ_ID)
INDEX (DST_OBJ_ID)
--------- 8< ---------
Thanks in advance.
S.

Answer 1

To cut down the explanation I did not give the actual query in my first post.
TBL_DIRECTION_1 = IPD_OMC_HANDOVER_DATA_2G
TBL_DIRECTION_2 = NEIGHBOURS
TBL_OBJ_MASTER= IPD_MASTER_CELLS
----------- 8< -----------
TKPROF: Release 10.2.0.2.0 - Production on Thu Sep 7 12:12:24 2006
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Trace file: /apps/oracle/admin/MAGNETD2/dump/user/magnetd2_ora_22210.trc
Sort options: default
count = number of times OCI procedure was executed
cpu = cpu time in seconds executing
elapsed = elapsed time in seconds executing
disk = number of physical reads of buffers from disk
query = number of buffers gotten for consistent read
current = number of buffers gotten in current mode (usually for update)
rows = number of rows processed by the fetch or execute call
alter session set sql_trace true
call count cpu elapsed disk query current rows
Parse 0 0.00 0.00 0 0 0 0
Execute 1 0.01 0.00 0 0 0 0
Fetch 0 0.00 0.00 0 0 0 0
total 1 0.01 0.00 0 0 0 0
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 103
begin :id := sys.dbms_transaction.local_transaction_id; end;
call count cpu elapsed disk query current rows
Parse 4 0.00 0.00 0 0 0 0
Execute 4 0.00 0.00 0 0 0 4
Fetch 0 0.00 0.00 0 0 0 0
total 8 0.00 0.00 0 0 0 4
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 103
select 'x'
from
dual
call count cpu elapsed disk query current rows
Parse 2 0.00 0.00 0 0 0 0
Execute 2 0.00 0.00 0 0 0 0
Fetch 2 0.00 0.00 0 0 0 2
total 6 0.00 0.00 0 0 0 2
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 103
Rows Row Source Operation
1 FAST DUAL (cr=0 pr=0 pw=0 time=19 us)
begin
if :enable = 0 then
sys.dbms_output.disable;
else
sys.dbms_output.enable(:size);
end if;
end;
call count cpu elapsed disk query current rows
Parse 1 0.00 0.00 0 0 0 0
Execute 1 0.00 0.00 0 0 0 1
Fetch 0 0.00 0.00 0 0 0 0
total 2 0.00 0.00 0 0 0 1
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 103
SELECT HO2G.SRC_CSR,
HO2G.SRC_CELL_ID,
HO2G.DST_CSR,
HO2G.DST_CELL_ID,
HO2G.SRC_BSC,
HO2G.DST_BSC DST_BSC_OR_RNC,
HO2G.HO_ATT,
HO2G.HO_SUCC,
DECODE(HO2G.HO_ATT, 0, 0, ROUND(HO2G.HO_SUCC * 100 / HO2G.HO_ATT, 2)) HO_SUCC_PER,
HO2G.HI_ATT,
HO2G.HI_SUCC,
DECODE(HO2G.HI_ATT, 0, 0, ROUND(HO2G.HI_SUCC * 100 / HO2G.HI_ATT, 2)) HI_SUCC_PER,
HO2G.SRC_OMC,
0 COPY,
0 REMOVE_2WAYS,
0 DST_CELL_IS_3G
FROM IPD_OMC_HANDOVER_DATA_2G HO2G
WHERE HO2G.SRC_CELL_ID LIKE '%' AND HO2G.SRC_CSR LIKE '%' AND
HO2G.SRC_BSC LIKE '104' AND HO2G.SRC_REGION LIKE '%' AND
((HO2G.HO_SUCC <> 0 AND HO2G.HI_SUCC = 0) OR
(HO2G.HO_SUCC = 0 AND HO2G.HI_SUCC <> 0)) AND EXISTS
(SELECT 1
FROM NEIGHBOURS N, IPD_MASTER_CELLS SIMC, IPD_MASTER_CELLS DIMC
WHERE N.CELL_PLA_PLA_ID = 0 AND N.CELL_PLAN_SEQ_NUM = 0 AND
N.SOURCE_CELL_SEQ_NO = SIMC.IMC_CELL_SEQ_NO AND
N.DESTINATION_CELL_SEQ_NO = DIMC.IMC_CELL_SEQ_NO AND
HO2G.SRC_CSR = SIMC.IMC_CSR AND
HO2G.SRC_CELL_ID = SIMC.IMC_CELL_ID AND
HO2G.DST_CSR = DIMC.IMC_CSR AND
HO2G.DST_CELL_ID = DIMC.IMC_CELL_ID
ORDER BY 1, 2, 3, 4
call count cpu elapsed disk query current rows
Parse 1 0.00 0.00 0 0 0 0
Execute 1 0.00 0.00 0 0 0 0
Fetch 1 21.55 21.07 0 758573 0 100
total 3 21.55 21.07 0 758573 0 100
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 103
Rows Row Source Operation
100 TABLE ACCESS BY INDEX ROWID IPD_OMC_HANDOVER_DATA_2G (cr=758573 pr=0 pw=0 time=2875024 us)
69027 INDEX FULL SCAN C_IOHD_2G_UK_1 (cr=748680 pr=0 pw=0 time=20019259 us)(object id 73059)
69027 NESTED LOOPS (cr=748260 pr=0 pw=0 time=17537106 us)
83140 NESTED LOOPS (cr=498840 pr=0 pw=0 time=11921339 us)
83140 TABLE ACCESS BY INDEX ROWID IPD_MASTER_CELLS (cr=249420 pr=0 pw=0 time=5816876 us)
83140 INDEX UNIQUE SCAN IMC_CSR_CELL_ID_I (cr=166280 pr=0 pw=0 time=4106053 us)(object id 73005)
83140 TABLE ACCESS BY INDEX RforumID=75, To cut down the explanation I did not give the actual query in my first post.
TBL_DIRECTION_1 = IPD_OMC_HANDOVER_DATA_2G
TBL_DIRECTION_2 = NEIGHBOURS
TBL_OBJ_MASTER= IPD_MASTER_CELLS
----------- 8< -----------
TKPROF: Release 10.2.0.2.0 - Production on Thu Sep 7 12:12:24 2006
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Trace file: /apps/oracle/admin/MAGNETD2/dump/user/magnetd2_ora_22210.trc
Sort options: default
count = number of times OCI procedure was executed
cpu = cpu time in seconds executing
elapsed = elapsed time in seconds executing
disk = number of physical reads of buffers from disk
query = number of buffers gotten for consistent read
current = number of buffers gotten in current mode (usually for update)
rows = number of rows processed by the fetch or execute call
alter session set sql_trace true
call count cpu elapsed disk query current rows
Parse 0 0.00 0.00 0 0 0 0
Execute 1 0.01 0.00 0 0 0 0
Fetch 0 0.00 0.00 0 0 0 0
total 1 0.01 0.00 0 0 0 0
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 103
begin :id := sys.dbms_transaction.local_transaction_id; end;
call count cpu elapsed disk query current rows
Parse 4 0.00 0.00 0 0 0 0
Execute 4 0.00 0.00 0 0 0 4
Fetch 0 0.00 0.00 0 0 0 0
total 8 0.00 0.00 0 0 0 4
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 103
select 'x'
from
dual
call count cpu elapsed disk query current rows
Parse 2 0.00 0.00 0 0 0 0
Execute 2 0.00 0.00 0 0 0 0
Fetch 2 0.00 0.00 0 0 0 2
total 6 0.00 0.00 0 0 0 2
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 103
Rows Row Source Operation
1 FAST DUAL (cr=0 pr=0 pw=0 time=19 us)
begin
if :enable = 0 then
sys.dbms_output.disable;
else
sys.dbms_output.enable(:size);
end if;
end;
call count cpu elapsed disk query current rows
Parse 1 0.00 0.00 0 0 0 0
Execute 1 0.00 0.00 0 0 0 1
Fetch 0 0.00 0.00 0 0 0 0
total 2 0.00 0.00 0 0 0 1
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 103
SELECT HO2G.SRC_CSR,
HO2G.SRC_CELL_ID,
HO2G.DST_CSR,
HO2G.DST_CELL_ID,
HO2G.SRC_BSC,
HO2G.DST_BSC DST_BSC_OR_RNC,
HO2G.HO_ATT,
HO2G.HO_SUCC,
DECODE(HO2G.HO_ATT, 0, 0, ROUND(HO2G.HO_SUCC * 100 / HO2G.HO_ATT, 2)) HO_SUCC_PER,
HO2G.HI_ATT,
HO2G.HI_SUCC,
DECODE(HO2G.HI_ATT, 0, 0, ROUND(HO2G.HI_SUCC * 100 / HO2G.HI_ATT, 2)) HI_SUCC_PER,
HO2G.SRC_OMC,
0 COPY,
0 REMOVE_2WAYS,
0 DST_CELL_IS_3G
FROM IPD_OMC_HANDOVER_DATA_2G HO2G
WHERE HO2G.SRC_CELL_ID LIKE '%' AND HO2G.SRC_CSR LIKE '%' AND
HO2G.SRC_BSC LIKE '104' AND HO2G.SRC_REGION LIKE '%' AND
((HO2G.HO_SUCC <> 0 AND HO2G.HI_SUCC = 0) OR
(HO2G.HO_SUCC = 0 AND HO2G.HI_SUCC <> 0)) AND EXISTS
(SELECT 1
FROM NEIGHBOURS N, IPD_MASTER_CELLS SIMC, IPD_MASTER_CELLS DIMC
WHERE N.CELL_PLA_PLA_ID = 0 AND N.CELL_PLAN_SEQ_NUM = 0 AND
N.SOURCE_CELL_SEQ_NO = SIMC.IMC_CELL_SEQ_NO AND
N.DESTINATION_CELL_SEQ_NO = DIMC.IMC_CELL_SEQ_NO AND
HO2G.SRC_CSR = SIMC.IMC_CSR AND
HO2G.SRC_CELL_ID = SIMC.IMC_CELL_ID AND
HO2G.DST_CSR = DIMC.IMC_CSR AND
HO2G.DST_CELL_ID = DIMC.IMC_CELL_ID
ORDER BY 1, 2, 3, 4
call count cpu elapsed disk query current rows
Parse 1 0.00 0.00 0 0 0 0
Execute 1 0.00 0.00 0 0 0 0
Fetch 1 21.55 21.07 0 758573 0 100
total 3 21.55 21.07 0 758573 0 100
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 103
Rows Row Source Operation
100 TABLE ACCESS BY INDEX ROWID IPD_OMC_HANDOVER_DATA_2G (cr=758573 pr=0 pw=0 time=2875024 us)
69027 INDEX FULL SCAN C_IOHD_2G_UK_1 (cr=748680 pr=0 pw=0 time=20019259 us)(object id 73059)
69027 NESTED LOOPS (cr=748260 pr=0 pw=0 time=17537106 us)
83140 NESTED LOOPS (cr=498840 pr=0 pw