SYS_REFCURSOR takes more time than direct query execution
I have a stored proc which has 4 inputs and 10 output and all outputs are sys_refcursor type.
Among 10 ouputs, 1 cursor returns 4k+ records and all other cursors has 3 or 4 records and average 5 columns in each cursors. For this, it takes 8 sec to complete the execution. If we directly query, it gives output in .025 sec.
I verified code located the issue with cursor which returns 4k+ only.
The cursor opening from a temporary table (which has 4k+ records ) without any filter. The query which inserted into temporary is direct inserts only and i found nothing to modify there.
Can anyone suggest, how we can bring the results in less than 3 sec? This is really a challenge since the code needs to go live next week.
Any help appreciated.
Thanks
Renjish
I've just repeated the test in SQL*Plus on my test database.
Both the ref cursor and direct SQL took 4.75 seconds.
However, that time is not the time to execute the SQL statement, but the time it took SQL*Plus in my command window to print out the 3999 rows of results.
SQL> create or replace PROCEDURE TEST_PROC (O_OUTPUT OUT SYS_REFCURSOR) is
2 BEGIN
3 OPEN O_OUTPUT FOR
4 select 11 plan_num, 22 loc_num, 'aaa' loc_nm from dual connect by level < 4000;
5 end;
6 /
Procedure created.
SQL> set timing on
SQL> set linesize 1000
SQL> set serverout on
SQL> var o_output refcursor;
SQL> exec test_proc(:o_output);
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.04
SQL> print o_output;
PLAN_NUM LOC_NUM LOC
11 22 aaa
11 22 aaa
11 22 aaa
11 22 aaa
11 22 aaa
3999 rows selected.
Elapsed: 00:00:04.75
SQL> select 11 plan_num, 22 loc_num, 'aaa' loc_nm from dual connect by level < 4000;
PLAN_NUM LOC_NUM LOC
11 22 aaa
11 22 aaa
11 22 aaa
11 22 aaa
11 22 aaa
11 22 aaa
3999 rows selected.
Elapsed: 00:00:04.75
That's the result I expect to see, both taking the same amount of time to do the same thing.
Please demonstrate how you are running it and getting different results.
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parallel_degree_policy string MANUAL
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| 0 | SELECT STATEMENT | | 1 | 21 | 2164K (1)| 07:12:52 | | |
| 1 | SORT AGGREGATE | | 1 | 21 | | | | |
| 2 | PARTITION RANGE OR| | 89030 | 1825K| 2164K (1)| 07:12:52 |KEY(OR)|KEY(OR)|
|* 3 | TABLE ACCESS FULL| SUBSCRIBER_EVENT | 89030 | 1825K| 2164K (1)| 07:12:52 |KEY(OR)|KEY(OR)|Automatic DOP Query: parameters set
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| 0 | SELECT STATEMENT | | 1 | 21 | 150K (1)| 00:30:01 | | | | | |
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| 2 | PX COORDINATOR | | | | | | | | | | |
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Foreground Wait Events DB/Inst: HDB/hdb Snaps: 158-161
-> s - second, ms - millisecond - 1000th of a second
-> Only events with Total Wait Time (s) >= .001 are shown
-> ordered by wait time desc, waits desc (idle events last)
-> %Timeouts: value of 0 indicates value was < .5%. Value of null is truly 0
Avg
%Time Total Wait wait Waits % DB
Event Waits -outs Time (s) (ms) /txn time
direct path read 522,173 0 125,051 239 628.4 99.3
db file sequential read 663 0 156 235 0.8 .1
log file sync 165 0 117 712 0.2 .1
Disk file operations I/O 267 0 63 236 0.3 .1
db file scattered read 251 0 36 145 0.3 .0
control file sequential re 217 0 32 149 0.3 .0
library cache load lock 2 0 10 4797 0.0 .0
cursor: pin S wait on X 3 0 9 3149 0.0 .0
read by other session 5 0 2 429 0.0 .0
kfk: async disk IO 613,170 0 2 0 737.9 .0
sort segment request 1 100 1 1007 0.0 .0
os thread startup 16 0 1 43 0.0 .0
direct path write temp 1 0 1 527 0.0 .0
latch free 51 0 0 2 0.1 .0
kksfbc child completion 1 100 0 59 0.0 .0
latch: cache buffers chain 19 0 0 2 0.0 .0
latch: shared pool 36 0 0 1 0.0 .0
PX Deq: Slave Session Stat 21 0 0 1 0.0 .0
library cache: mutex X 45 0 0 1 0.1 .0
CSS initialization 2 0 0 6 0.0 .0
enq: KO - fast object chec 1 0 0 11 0.0 .0
buffer busy waits 3 0 0 1 0.0 .0
cursor: pin S 9 0 0 0 0.0 .0
CSS operation: action 2 0 0 1 0.0 .0
direct path write 1 0 0 2 0.0 .0
jobq slave wait 17,554 100 8,942 509 21.1
PX Deq: Execute Reply 4,060 95 7,870 1938 4.9
SQL*Net message from clien 96 0 5,756 59962 0.1
PX Deq: Execution Msg 618 56 712 1152 0.7
KSV master wait 11 0 0 2 0.0
PX Deq: Join ACK 16 0 0 1 0.0
PX Deq: Parse Reply 14 0 0 1 0.0
Background Wait Events DB/Inst: HDB/hdb Snaps: 158-161
-> ordered by wait time desc, waits desc (idle events last)
-> Only events with Total Wait Time (s) >= .001 are shown
-> %Timeouts: value of 0 indicates value was < .5%. Value of null is truly 0
Avg
%Time Total Wait wait Waits % bg
Event Waits -outs Time (s) (ms) /txn time
control file sequential re 6,249 0 2,375 380 7.5 55.6
control file parallel writ 2,003 0 744 371 2.4 17.4
db file parallel write 1,604 0 503 313 1.9 11.8
log file parallel write 861 0 320 371 1.0 7.5
db file sequential read 363 0 151 415 0.4 3.5
db file scattered read 152 0 64 421 0.2 1.5
Disk file operations I/O 276 0 21 77 0.3 .5
os thread startup 316 0 15 48 0.4 .4
ADR block file read 24 0 11 450 0.0 .3
rdbms ipc reply 17 12 7 403 0.0 .2
Data file init write 6 0 6 1016 0.0 .1
direct path write 21 0 6 287 0.0 .1
log file sync 7 0 6 796 0.0 .1
ADR block file write 10 0 4 414 0.0 .1
enq: JS - queue lock 1 0 3 2535 0.0 .1
ASM file metadata operatio 1,801 0 2 1 2.2 .0
db file parallel read 30 0 1 40 0.0 .0
kfk: async disk IO 955 0 1 1 1.1 .0
db file single write 1 0 0 415 0.0 .0
reliable message 10 0 0 23 0.0 .0
latch: shared pool 75 0 0 2 0.1 .0
latch: call allocation 26 0 0 2 0.0 .0
CSS initialization 7 0 0 6 0.0 .0
asynch descriptor resize 352 100 0 0 0.4 .0
undo segment extension 2 100 0 5 0.0 .0
CSS operation: action 9 0 0 1 0.0 .0
CSS operation: query 42 0 0 0 0.1 .0
latch: parallel query allo 4 0 0 0 0.0 .0
rdbms ipc message 37,948 97 104,599 2756 45.7
DIAG idle wait 16,762 100 16,927 1010 20.2
ASM background timer 1,724 0 8,467 4912 2.1
shared server idle wait 282 100 8,465 30019 0.3
pmon timer 3,123 90 8,465 2711 3.8
wait for unread message on 8,381 100 8,465 1010 10.1
dispatcher timer 141 100 8,463 60019 0.2
Streams AQ: qmn coordinato 604 50 8,462 14010 0.7
Streams AQ: qmn slave idle 304 0 8,462 27836 0.4
smon timer 35 71 8,382 239496 0.0
Space Manager: slave idle 1,621 99 8,083 4986 2.0
PX Idle Wait 2,392 99 4,739 1981 2.9
class slave wait 46 0 623 13546 0.1
KSV master wait 2 0 0 27 0.0
SQL*Net message from clien 7 0 0 1 0.0
Wait Event Histogram DB/Inst: HDB/hdb Snaps: 158-161
-> Units for Total Waits column: K is 1000, M is 1000000, G is 1000000000
-> % of Waits: value of .0 indicates value was <.05%; value of null is truly 0
-> % of Waits: column heading of <=1s is truly <1024ms, >1s is truly >=1024ms
-> Ordered by Event (idle events last)
% of Waits
Total
Event Waits <1ms <2ms <4ms <8ms <16ms <32ms <=1s >1s
ADR block file read 24 100.0
ADR block file write 10 100.0
ADR file lock 12 100.0
ASM file metadata operatio 1812 99.0 .3 .4 .2 .1
CSS initialization 9 100.0
CSS operation: action 11 90.9 9.1
CSS operation: query 54 100.0
Data file init write 6 16.7 16.7 16.7 50.0
Disk file operations I/O 533 88.7 2.6 .6 1.5 .2 6.4
PX Deq: Signal ACK EXT 4 100.0
PX Deq: Signal ACK RSG 2 100.0
PX Deq: Slave Session Stat 21 42.9 28.6 28.6
SQL*Net break/reset to cli 6 100.0
SQL*Net message to client 102 100.0
SQL*Net more data to clien 4 100.0
asynch descriptor resize 527 100.0
buffer busy waits 4 75.0 25.0
control file parallel writ 2003 9.3 .5 .0 .1 90.0
control file sequential re 6466 10.6 .0 .0 .0 .1 .2 89.0
cursor: pin S 9 100.0
cursor: pin S wait on X 3 33.3 33.3 33.3
db file parallel read 30 6.7 30.0 63.3
db file parallel write 1604 7.4 .1 .6 16.5 75.5
db file scattered read 403 3.7 .2 2.5 13.6 14.9 3.5 61.5
db file sequential read 1017 12.3 .8 2.3 7.3 6.6 2.0 68.8
db file single write 1 100.0
direct path read 522.2 2.2 2.1 .1 .0 1.8 17.9 75.9
direct path write 22 4.5 4.5 90.9
direct path write temp 1 100.0
enq: JS - queue lock 1 100.0
enq: KO - fast object chec 1 100.0
enq: PS - contention 1 100.0
kfk: async disk IO 614.1 100.0 .0
kksfbc child completion 1 100.0
latch free 58 46.6 27.6 15.5 10.3
latch: cache buffers chain 19 36.8 10.5 52.6
latch: call allocation 26 76.9 11.5 7.7 3.8
latch: parallel query allo 4 100.0
latch: shared pool 111 44.1 28.8 27.0
library cache load lock 2 100.0
library cache: mutex X 45 84.4 8.9 4.4 2.2
log file parallel write 861 10.0 .1 .1 89.5 .2
log file sync 172 6.4 90.1 3.5
os thread startup 332 100.0
rdbms ipc reply 18 72.2 11.1 16.7
read by other session 5 100.0
reliable message 11 81.8 9.1 9.1
sort segment request 1 100.0
undo segment extension 2 50.0 50.0
ASM background timer 1724 .8 .6 .1 .6 97.9
DIAG idle wait 16.8K 100.0
KSV master wait 13 7.7 23.1 61.5 7.7
PX Deq: Execute Reply 4060 .4 .0 .0 .1 3.4 96.0
PX Deq: Execution Msg 617 34.7 1.5 2.4 1.5 1.5 .2 .8 57.5
PX Deq: Join ACK 16 93.8 6.3
PX Deq: Parse Reply 14 71.4 7.1 14.3 7.1
PX Idle Wait 2384 .0 .6 99.3
SQL*Net message from clien 103 82.5 1.0 1.9 1.0 13.6
Space Manager: slave idle 1621 .2 99.8
Streams AQ: qmn coordinato 604 50.0 50.0
Wait Event Histogram DB/Inst: HDB/hdb Snaps: 158-161
-> Units for Total Waits column: K is 1000, M is 1000000, G is 1000000000
-> % of Waits: value of .0 indicates value was <.05%; value of null is truly 0
-> % of Waits: column heading of <=1s is truly <1024ms, >1s is truly >=1024ms
-> Ordered by Event (idle events last)Edited by: Sachin B on May 11, 2010 4:52 AM -
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THEN x.dollar_amt
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WHEN (x.cf_ind = 'F' AND yr = curr_yr AND curr_mm = mm)
THEN x.dollar_amt
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SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr AND curr_mm = mm)
THEN x.dollar_amt
ELSE 0
END
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SUM (CASE
WHEN ( x.cf_ind = 'F'
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SUM (CASE
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THEN x.dollar_amt
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SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr AND mm = 11)
THEN x.dollar_amt
ELSE 0
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SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr AND mm = 11)
THEN x.dollar_amt
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WHEN (x.cf_ind = 'F' AND yr = curr_yr AND mm = 10)
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SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr AND mm = 10)
THEN x.dollar_amt
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SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr AND mm = 9)
THEN x.dollar_amt
ELSE 0
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SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr AND mm = 9)
THEN x.dollar_amt
ELSE 0
END
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SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr AND mm = 8)
THEN x.dollar_amt
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END
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SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr AND mm = 8)
THEN x.dollar_amt
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SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr AND mm = 7)
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ELSE 0
END
) curr_jul_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr AND mm = 6)
THEN x.dollar_amt
ELSE 0
END
) curr_jun_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr AND mm = 6)
THEN x.dollar_amt
ELSE 0
END
) curr_jun_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr AND mm = 5)
THEN x.dollar_amt
ELSE 0
END
) curr_may_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr AND mm = 5)
THEN x.dollar_amt
ELSE 0
END
) curr_may_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr AND mm = 4)
THEN x.dollar_amt
ELSE 0
END
) curr_apr_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr AND mm = 4)
THEN x.dollar_amt
ELSE 0
END
) curr_apr_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr AND mm = 3)
THEN x.dollar_amt
ELSE 0
END
) curr_mar_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr AND mm = 3)
THEN x.dollar_amt
ELSE 0
END
) curr_mar_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr AND mm = 2)
THEN x.dollar_amt
ELSE 0
END
) curr_feb_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr AND mm = 2)
THEN x.dollar_amt
ELSE 0
END
) curr_feb_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr AND mm = 1)
THEN x.dollar_amt
ELSE 0
END
) curr_jan_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr AND mm = 1)
THEN x.dollar_amt
ELSE 0
END
) curr_jan_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 1 AND mm = 12)
THEN x.dollar_amt
ELSE 0
END
) yr1_dec_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 1 AND mm = 12)
THEN x.dollar_amt
ELSE 0
END
) yr1_dec_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 1 AND mm = 11)
THEN x.dollar_amt
ELSE 0
END
) yr1_nov_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 1 AND mm = 11)
THEN x.dollar_amt
ELSE 0
END
) yr1_nov_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 1 AND mm = 10)
THEN x.dollar_amt
ELSE 0
END
) yr1_oct_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 1 AND mm = 10)
THEN x.dollar_amt
ELSE 0
END
) yr1_oct_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 1 AND mm = 9)
THEN x.dollar_amt
ELSE 0
END
) yr1_sep_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 1 AND mm = 9)
THEN x.dollar_amt
ELSE 0
END
) yr1_sep_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 1 AND mm = 8)
THEN x.dollar_amt
ELSE 0
END
) yr1_aug_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 1 AND mm = 8)
THEN x.dollar_amt
ELSE 0
END
) yr1_aug_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 1 AND mm = 7)
THEN x.dollar_amt
ELSE 0
END
) yr1_jul_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 1 AND mm = 7)
THEN x.dollar_amt
ELSE 0
END
) yr1_jul_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 1 AND mm = 6)
THEN x.dollar_amt
ELSE 0
END
) yr1_jun_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 1 AND mm = 6)
THEN x.dollar_amt
ELSE 0
END
) yr1_jun_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 1 AND mm = 5)
THEN x.dollar_amt
ELSE 0
END
) yr1_may_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 1 AND mm = 5)
THEN x.dollar_amt
ELSE 0
END
) yr1_may_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 1 AND mm = 4)
THEN x.dollar_amt
ELSE 0
END
) yr1_apr_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 1 AND mm = 4)
THEN x.dollar_amt
ELSE 0
END
) yr1_apr_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 1 AND mm = 3)
THEN x.dollar_amt
ELSE 0
END
) yr1_mar_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 1 AND mm = 3)
THEN x.dollar_amt
ELSE 0
END
) yr1_mar_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 1 AND mm = 2)
THEN x.dollar_amt
ELSE 0
END
) yr1_feb_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 1 AND mm = 2)
THEN x.dollar_amt
ELSE 0
END
) yr1_feb_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 1 AND mm = 1)
THEN x.dollar_amt
ELSE 0
END
) yr1_jan_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 1 AND mm = 1)
THEN x.dollar_amt
ELSE 0
END
) yr1_jan_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 2 AND mm = 12)
THEN x.dollar_amt
ELSE 0
END
) yr2_dec_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 2 AND mm = 12)
THEN x.dollar_amt
ELSE 0
END
) yr2_dec_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 2 AND mm = 11)
THEN x.dollar_amt
ELSE 0
END
) yr2_nov_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 2 AND mm = 11)
THEN x.dollar_amt
ELSE 0
END
) yr2_nov_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 2 AND mm = 10)
THEN x.dollar_amt
ELSE 0
END
) yr2_oct_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 2 AND mm = 10)
THEN x.dollar_amt
ELSE 0
END
) yr2_oct_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 2 AND mm = 9)
THEN x.dollar_amt
ELSE 0
END
) yr2_sep_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 2 AND mm = 9)
THEN x.dollar_amt
ELSE 0
END
) yr2_sep_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 2 AND mm = 8)
THEN x.dollar_amt
ELSE 0
END
) yr2_aug_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 2 AND mm = 8)
THEN x.dollar_amt
ELSE 0
END
) yr2_aug_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 2 AND mm = 7)
THEN x.dollar_amt
ELSE 0
END
) yr2_jul_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 2 AND mm = 7)
THEN x.dollar_amt
ELSE 0
END
) yr2_jul_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 2 AND mm = 6)
THEN x.dollar_amt
ELSE 0
END
) yr2_jun_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 2 AND mm = 6)
THEN x.dollar_amt
ELSE 0
END
) yr2_jun_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 2 AND mm = 5)
THEN x.dollar_amt
ELSE 0
END
) yr2_may_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 2 AND mm = 5)
THEN x.dollar_amt
ELSE 0
END
) yr2_may_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 2 AND mm = 4)
THEN x.dollar_amt
ELSE 0
END
) yr2_apr_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 2 AND mm = 4)
THEN x.dollar_amt
ELSE 0
END
) yr2_apr_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 2 AND mm = 3)
THEN x.dollar_amt
ELSE 0
END
) yr2_mar_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 2 AND mm = 3)
THEN x.dollar_amt
ELSE 0
END
) yr2_mar_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 2 AND mm = 2)
THEN x.dollar_amt
ELSE 0
END
) yr2_feb_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 2 AND mm = 2)
THEN x.dollar_amt
ELSE 0
END
) yr2_feb_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND yr = curr_yr - 2 AND mm = 1)
THEN x.dollar_amt
ELSE 0
END
) yr2_jan_fee,
SUM (CASE
WHEN (x.cf_ind = 'C' AND yr = curr_yr - 2 AND mm = 1)
THEN x.dollar_amt
ELSE 0
END
) yr2_jan_comm,
SUM (CASE
WHEN (x.cf_ind = 'F' AND asof_cymd = bus_day)
THEN x.dollar_amt
ELSE 0
END
) tot_fee_prev_day,
SUM (CASE
WHEN (x.cf_ind = 'C' AND asof_cymd = bus_day)
THEN x.dollar_amt
ELSE 0
END
) tot_comm_prev_day
FROM (SELECT acct_no, status
FROM action_tab
UNION
SELECT '0' acct_no, 'AC' status
FROM DUAL) act,
(SELECT TO_NUMBER (TO_CHAR (TO_DATE (NVL (asof_cymd, trade_cymd),
'YYYY-MM-DD'
'YYYY'
) yr,
TO_NUMBER (TO_CHAR (TO_DATE (NVL (asof_cymd, trade_cymd),
'YYYY-MM-DD'
'MM'
) mm,
TO_NUMBER (TO_CHAR (h_inner.bus_day, 'yyyy')) curr_yr,
TO_NUMBER (TO_CHAR (h_inner.bus_day, 'mm')) curr_mm,
rep_commission,
TO_DATE (NVL (asof_cymd, trade_cymd),
'YYYY-MM-DD'
) asof_cymd,
c.acct_no, rep_full rep, f.acct_no fba_acct,
CASE
WHEN ( TO_DATE (f.close_cymd, 'YYYY-MM-DD') <=
SYSDATE
OR f.acct_no IS NULL
THEN 'C'
ELSE 'F'
END cf_ind,
CASE
WHEN (adj_commission != 0
AND adj_commission IS NOT NULL
THEN adj_commission
ELSE NVL (commission, 0) + NVL (mark_up_down, 0)
END dollar_amt
FROM coding_tab c, fbaact_tab f, hist_dt_ctrl_tab h_inner
WHERE c.acct_no = f.acct_no(+)) x,
hist_dt_ctrl_tab
WHERE act.acct_no = x.acct_no
AND x.rep IS NOT NULL
--AND act.rep = x.rep
AND act.status IN ('AC', 'IN')
GROUP BY act.acct_no, x.rep
Thanks in advance.Hi
The details given below.
Execution Plan on 9i
1.00 2,412.00 SELECT STATEMENT 93,164.00 260,496.00 93,164.00 CHOOSE
2.00 2,412.00 -SORT GROUP BY 93,164.00 260,496.00 93,164.00
3.00 8,684,104.00 --NESTED LOOPS OUTER 17,410.00 937,883,232.00 17,410.00
4.00 8,684,104.00 ---HASH JOIN 17,410.00 772,885,256.00 17,410.00
5.00 538,055.00 ----MERGE JOIN CARTESIAN 5,632.00 28,516,915.00 5,632.00
6.00 1.00 -----MERGE JOIN CARTESIAN 6.00 14.00 6.00
7.00 1.00 ------TABLE ACCESS FULL HIST_DT_CTRL 3.00 7.00 3.00 ANALYZED
7.00 1.00 ------BUFFER SORT 3.00 7.00 3.00
8.00 1.00 -------TABLE ACCESS FULL HIST_DT_CTRL 3.00 7.00 3.00 ANALYZED
6.00 538,055.00 -----BUFFER SORT 5,629.00 20,984,145.00 5,629.00
7.00 538,055.00 ------VIEW 5,626.00 20,984,145.00
8.00 538,055.00 -------SORT UNIQUE 5,626.00 5,298,870.00 5,599.00
9.00 --------UNION-ALL
10.00 529,887.00 ---------TABLE ACCESS FULL ACTION_TAB 4,164.00 5,298,870.00 4,164.00 ANALYZED
10.00 8,168.00 ---------TABLE ACCESS FULL DUAL 11.00 11.00
5.00 3,518,688.00 ----TABLE ACCESS FULL CODING_TAB 3,978.00 126,672,768.00 3,978.00 ANALYZED
4.00 1.00 ---TABLE ACCESS BY INDEX ROWID FBAACT_TAB 19.00 ANALYZED
5.00 1.00 ----INDEX UNIQUE SCAN FBA_ACT_PK_ACCT_NO ANALYZED
Execution Plan on 11g
1.00 2,399.00 SELECT STATEMENT 37,681.00 271,087.00 17,370,453,529.00 35,293.00 ALL_ROWS
2.00 2,399.00 -HASH GROUP BY 37,681.00 271,087.00 17,370,453,529.00 35,293.00
3.00 10,291,120.00 --HASH JOIN RIGHT OUTER 36,195.00 1,162,896,560.00 6,562,221,120.00 35,293.00
4.00 1.00 ---TABLE ACCESS FULL FBAACT_TAB 2.00 19.00 7,121.00 2.00 ANALYZED
4.00 10,291,120.00 ---HASH JOIN 36,051.00 967,365,280.00 5,529,464,283.00 35,291.00
5.00 660,746.00 ----MERGE JOIN CARTESIAN 14,778.00 38,323,268.00 2,126,486,738.00 14,486.00
6.00 1.00 -----MERGE JOIN CARTESIAN 10.00 16.00 185,497.00 10.00
7.00 1.00 ------TABLE ACCESS FULL HISTDT_CTRL 5.00 8.00 92,749.00 5.00 ANALYZED
7.00 1.00 ------BUFFER SORT 5.00 8.00 92,749.00 5.00
8.00 1.00 -------TABLE ACCESS FULL HISTDT_CTRL 5.00 8.00 92,749.00 5.00 ANALYZED
6.00 660,746.00 -----BUFFER SORT 14,773.00 27,751,332.00 2,126,393,989.00 14,481.00
7.00 660,746.00 ------VIEW 14,768.00 27,751,332.00 2,126,301,241.00 14,476.00
8.00 660,746.00 -------SORT UNIQUE 14,768.00 6,607,450.00 2,119,018,839.00 14,474.00
9.00 --------UNION-ALL
10.00 660,745.00 ---------TABLE ACCESS FULL ACTION_TAB 12,058.00 6,607,450.00 1,494,346,997.00 11,853.00 ANALYZED
10.00 1.00 ---------FAST DUAL 2.00 7,271.00 2.00
5.00 3,418,417.00 ----TABLE ACCESS FULL CODING_TAB 11,116.00 123,063,012.00 1,823,935,730.00 10,865.00 ANALYZED
The differences in INIT Parameters
9i 11g
multi_block_read_count 16 128
optimizer_mode choose all_rows
other h/w and load related
CPUs 8@900MHZ 8@1200MHZ
load used by many QA users just testing to make sure
all our cronjobs are running
fine or not
the above mentioned SQL is part of one of the processes, takes about 41 min on 9i and the same taking about 52-56 minutes on 11g.
Also, I took out every in-line SELECT statement and ran in both envs. looks 11g is executing them fast. But as a whole it takes about 10-12 mins more on 11g. So
I suspect that its problem with INSERT statement. So I just wrote a simple PL/SQL block to insert 1m records and tested on both.
INSERTION OF 1M records 1:46 min 2:06 min
count(*) 0:0.35 sec 0:0.17 sec
delete 0:28.9 sec 0:36.72 sec
rollback 0:32.19 sec 0:41.36 sec -
Return value from database function taking a lot more time than the query
Hi guys,
I have a Query that does a call to a database function. The function takes in a few parameters and returns a Date. Now, the query within the function takes barely .05 seconds. However, doing a select get_join_dates from dual is taking almost 6 seconds for each call.
Here is the Query:
select s.student_id, s.student_name, s.organization_code
from student s
where s.student_id = :p_student_id
and s.student_enrollment_date = get_join_dates( :p_year,
:p_month,
:p_student_id,
s.organization_code );And here is the database function. The select inside this function barely takes 0.05 seconds per call. This function gets called 3 times in my case as there are 3 records in the org_body table for this student.
create or replace function
get_join_dates( p_yyyy in org_body.fiscal_yyyy%type,
p_month in org_body.fiscal_mm%type,
p_student_id in student.student_id%type,
p_organization_code in org_body.organization_code%type) return date as
t_enrollment_date date;
cursor cur_latest_enrollment_date is
select max(enrollment_date)
from org_body
where fiscal_yyyy = p_yyyy
and fiscal_mm = p_month
and student_id = p_student_id
and organization_code = p_organization_code;
BEGIN
open cur_latest_enrollment_date ;
fetch cur_latest_enrollment_date into t_enrollment_date;
close cur_latest_enrollment_date ;
return t_enrollment_date;
exception
when others then
null;
end;owever, when I run the following statement below, it takes close to 6 seconds to retrieve a record. In turn, my Query is becoming really slow and taking almost 35 seconds. Imagine that with more records.
select get_join_dates( 2010, '01', '2167543', 'PSYCH01' ) from dual;If I run my query with this condition below, it takes 0.5 seconds.
select s.student_id, s.student_name, s.organization_code
from student s
where s.student_id = :p_student_id
and s.student_enrollment_date = '01-JAN-10'Any ideas would be greatly appreciated.Any reason why you are doing this with the stored function?
You could just do this with SQL. Embed the query in the function as a subquery in your initial query from STUDENT.
select s.student_id, s.student_name, s.organization_code
from student s
where s.student_id = :p_student_id
and s.student_enrollment_date =
(select max(enrollment_date)
from org_body
where fiscal_yyyy = :p_year
and fiscal_mm = :p_month
and student_id = s.student_id
and organization_code = s.organization_code);Why your function is not performing: I cannot say that with the information you have provided.
Maybe sqltrace a call and see what the reason is. -
Threaded program takes more time than executing serially!
Hello All
Ive converted my program into a threaded application so as to improve speed. However i found that after converting the execution time is more than it was when the program was non threaded. Im not having any synchronised methods. Any idea what could be the reason ?
Thanx in advance.Putting aside fstreams amusing comment, I suspect your
theads are never yielding (they are sitting in a tight
loop, thus taking all available procesor power). Try
adding Thread.sleep(0) at som point in the loop.No. If you just want to encourage one thread to give another thread a turn, use yield, not sleep.
Note, though, that this may not help your situation. As was pointed out, on a single CPU machine, the only way a multithreaded program will run faster (by which I mean total wall-clock time start to finish) than its single-threaded equivalent is if the 1-thread version spends a lot of time waiting for IO when it could be doing something else. (If it's waiting for IO, but that IO is needed for the big number crunching, then putting the crunching in another thread won't make things any faster.)
On the other hand, if by "faster" you're referring to a more responsive GUI, then, yes, in general you might expect better GUI response be putting non-GUI stuff in a different thread, but there's no guarantee. Depending on what the other thread does, how much work your GUI has to do, how your VM's scheduler works, how you've split up the work, etc., it may not be any better.
I know that's not very specific, but neither was your question. -
Row Insert in Timesten takes more time than Oracle
Hi,
I have a Timesten IMDB (11.2.1.8.0 (64 bit Linux/x86_64) with an underlying Oracle Database 11Gr2.
Sys.odbc.ini entry is :
[DSN_NAME]
Driver=/application/TimesTen/matrix/lib/libtten.so
DataStore=/application/TimesTen/DSN_NAME_datastore/DSN_NAME_DS_DIR
LogDir=/logs_timeten/DSN_NAME_logdir
PermSize=8000
TempSize=250
PLSQL=1
DatabaseCharacterSet=WE8MSWIN1252
OracleNetServiceName=DBNAME
Connections=500
PassThrough=0
SQLQueryTimeout=250
LogBufMB=512
LogFileSize=512
LogPurge=1
When I try to insert a simple row in a table in an asyc cache group in Timesten it takes 3 ms (it has 6 indexes on it). On removing 4 indexes the performance improves to 1 ms. However inserting the same row on Oracle (with 6 indexes) takes 1.2 ms.
How can we improve the insert row performance in Timesten ? Kindly assist.
Regards,
Karan
PS: During the test run, we monitored deadlocks and log buffer waits with the following query and both values never changed from zero
select PERM_ALLOCATED_SIZE,PERM_IN_USE_SIZE,TEMP_ALLOCATED_SIZE,TEMP_IN_USE_SIZE,DEADLOCKS,LOG_FS_READS,LOG_FS_WRITES,LOG_BUFFER_WAITS from sys.monitor;
Edited by: 853100 on Nov 2, 2012 4:19 AMThis is not very efficient as the statement will require likely need to be parsed for each INSERT. Even a soft parse is very expensive compared to the cost of the actual INSERT.
Can you try changing your code to something like the following just to evaluate the difference in performance. The object is to prepare the INSERT just once, outside of the INSERT loop and then execute the prepared INSERT many times passing the required input parameters. I'm not a Pro*C expert but an outline of the code looks something like this:
char * ins1 = " INSERT INTO ORDERS(
ORD_ORDER_NO ,
ORD_SERIAL_NO ,
ORD_SEM_SMST_SECURITY_ID,
ORD_BTM_EMM_MKT_TYPE ,
ORD_BTM_BOOK_TYPE ,
ORD_EXCH_ID ,
ORD_EPM_EM_ENTITY_ID ,
ORD_EXCH_ORDER_NO ,
ORD_CLIENT_ID ,
ORD_BUY_SELL_IND ,
ORD_TRANS_CODE ,
ORD_STATUS ,
ORD_ENTRY_DATE ,
ORD_ORDER_TIME ,
ORD_QTY_ORIGINAL ,
ORD_QTY_REMAINING ,
ORD_QTY_DISC ,
ORD_QTY_DISC_REMAINING ,
ORD_QTY_FILLED_TODAY ,
ORD_ORDER_PRICE ,
ORD_TRIGGER_PRICE ,
ORD_DISC_QTY_FLG ,
ORD_GTC_FLG ,
ORD_DAY_FLG ,
ORD_IOC_FLG ,
ORD_MIN_FILL_FLG ,
ORD_MKT_FLG ,
ORD_STOP_LOSS_FLG ,
ORD_AON_FLG ,
ORD_GOOD_TILL_DAYS ,
ORD_GOOD_TILL_DATE ,
ORD_AUCTION_NO ,
ORD_ACC_CODE ,
ORD_UM_USER_ID ,
ORD_MIN_FILL_QTY ,
ORD_SETTLEMENT_DAYS ,
ORD_COMPETITOR_PERIOD ,
ORD_SOLICITOR_PERIOD ,
ORD_PRO_CLIENT ,
ORD_PARTICIPANT_TYPE ,
ORD_PARTICIPANT_CODE ,
ORD_COUNTER_BROKER_CODE ,
ORD_CUSTODIAN_CODE ,
ORD_SETTLER ,
ORD_REMARKS ,
ORD_BSE_DELV_FLAG ,
ORD_BSE_NOTICE_NUM ,
ORD_ERROR_CODE ,
ORD_EXT_CLIENT_ID ,
ORD_SOURCE_FLG ,
ORD_BUY_BACK_FLG ,
ORD_RESERVE_FLG ,
ORD_BSE_REMARK ,
ORD_CARRY_FORWARD_FLAG ,
ORD_ORDER_OFFON ,
ORD_D2C1_FLAG ,
ORD_FI_RETAIL_FLG ,
ORD_OIB_INT_REF_ID ,
ORD_BOB_BASKET_ORD_NO ,
ORD_PRODUCT_ID ,
ORD_OIB_EXEC_REPORT_ID ,
ORD_BANK_DP_TXN_ID ,
ORD_USERINFO_PROG ,
ORD_BANK_CODE ,
ORD_BANK_ACC_NUM ,
ORD_DP_CODE ,
ORD_DP_ACC_NUM ,
ORD_SESSION_ORDER_TYPE ,
ORD_ORDER_CC_SEQ ,
ORD_RMS_DAEMON_STATUS ,
ORD_GROUP_ID ,
ORD_REASON_CODE ,
ORD_REASON_DESCRIPTION ,
ORD_SERIES_IND ,
ORD_BOB_BASKET_TYPE ,
ORD_ORIGINAL_TIME ,
ORD_TRD_EXCH_TRADE_NO,
ORD_MKT_PROT ,
ORD_SETTLEMENT_TYPE ,
ORD_SUB_CLIENT,
ORD_ALGO_OI_NUM,
ORD_FROM_ALGO_CLORDID,
ORD_FROM_ALGO_ORG_CLORDID
VALUES(
:lvar_ord_order_no ,
:lvar_ord_serial_no ,
ltrim(rtrim(:lvar_ord_sem_smst_security_id)),
ltrim(rtrim(:lvar_ord_btm_emm_mkt_type)),
ltrim(rtrim(:lvar_ord_btm_book_type)),
ltrim(rtrim(:lvar_ord_exch_id)) ,
decode(:lD2C1Flag,'N',ltrim(rtrim(:lvar_ord_epm_em_entity_id)),ltrim(rtrim(:sD2C1ControllerId))) ,
:insertExchOrderNo,
ltrim(rtrim(:lvar_ord_client_id)) ,
ltrim(rtrim(:lvar_ord_buy_sell_ind)),
:lvar_ord_trans_code,
:cTransitStatus ,
sysdate,
sysdate,
:lvar_ord_qty_original,
decode(:lvar_ord_qty_remaining ,-1,to_number(null),:lvar_ord_qty_remaining) ,
decode(:lvar_ord_qty_disc ,-1,to_number(null),:lvar_ord_qty_disc),
decode(:lvar_ord_qty_disc_remaining,-1,to_number(null),:lvar_ord_qty_disc_remaining),
:lvar_ord_qty_filled_today ,
:lvar_ord_order_price,
decode(:lvar_ord_trigger_price ,-1,to_number(null),:lvar_ord_trigger_price) ,
decode(:lvar_ord_disc_qty_flg ,-1,null,:lvar_ord_disc_qty_flg) ,
decode(:lvar_ord_gtc_flg ,-1,null,:lvar_ord_gtc_flg) ,
decode(:lvar_ord_day_flg ,-1,null,:lvar_ord_day_flg) ,
decode(:lvar_ord_ioc_flg ,-1,null,:lvar_ord_ioc_flg) ,
decode(:lvar_ord_min_fill_flg ,-1,null,:lvar_ord_min_fill_flg) ,
decode(:lvar_ord_mkt_flg ,-1,null,:lvar_ord_mkt_flg) ,
decode(:lvar_ord_stop_loss_flg ,-1,null,:lvar_ord_stop_loss_flg) ,
decode(:lvar_ord_aon_flg ,-1,null,:lvar_ord_aon_flg) ,
decode(:lvar_ord_good_till_days ,-1,to_number(null),:lvar_ord_good_till_days),
to_date(ltrim(rtrim(:lvar_ord_good_till_date)) ,'dd-mm-yyyy'),
:lvar_ord_auction_no,
ltrim(rtrim(:lvar_ord_acc_code)),
ltrim(rtrim(:lv_UserIdOrLogPktId)),
decode(:lvar_ord_min_fill_qty,-1,to_number(null),:lvar_ord_min_fill_qty),
:lvar_ord_settlement_days,
:lvar_ord_competitor_period,
:lvar_ord_solicitor_period,
:lvar_ord_pro_client ,
ltrim(rtrim(:lvar_ord_participant_type)),
ltrim(rtrim(:lvar_ord_participant_code)),
ltrim(rtrim(:lvar_ord_counter_broker_code)),
trim(:lvar_ord_custodian_code) ,
ltrim(rtrim(:lvar_ord_settler)),
ltrim(rtrim(:lvar_ord_remarks)),
ltrim(rtrim(:lvar_ord_bse_delv_flag)) ,
ltrim(rtrim(:lvar_ord_bse_notice_num)) ,
:lvar_ord_error_code ,
trim(:lvar_ord_ext_client_id) ,
ltrim(rtrim(:lvar_ord_source_flg)),
ltrim(rtrim(:lvar_ord_buyback_flg)),
:lvar_ord_reserve_flag ,
trim(:lvar_ord_bse_remark) ,
ltrim(rtrim(:lvar_ord_carryfwd_flg)),
:cOnStatus,
:lD2C1Flag,
:lSendToRemoteUser,
:lInternalRefId,
:lvar_bob_basket_ord_no,
ltrim(rtrim(:lvar_ord_product_id)),
trim(:lvar_ord_oib_exec_report_id) ,
:lvar_BankDpTxnId ,
ltrim(rtrim(:lEquBseUserCode )),
ltrim(rtrim(:lvar_BankCode)) ,
ltrim(rtrim(:lvar_BankAccNo)),
ltrim(rtrim(:lvar_DPCode)),
ltrim(rtrim(:lvar_DPAccNo)) ,
ltrim(rtrim(:lvar_OrderSessionType)) ,
:lvar_ord_order_cc_seq,
:lvar_ord_rms_daemon_status ,
:lvarGrpId,
:lvar_ord_reason_code ,
trim(:lvar_ord_reason_description) ,
:lSecSeriesInd,
ltrim(rtrim(:lBasketType)),
sysdate,
(-1 * :lvar_ord_serial_no),
:MktProt ,
:lvar_ord_sett_type,
ltrim(rtrim(:lvar_ca_cli_type)) ,
:ComplianceID,
ltrim(rtrim(:lvar_ClOrd)),
ltrim(rtrim(:lvar_OrgClOrd))
EXEC SQL AT :db_conn PREPARE i1 FROM :ins1;
logTimestamp("BEFORE inserting in orders table");
for (i=0; i<NUM_INSERTS; i++)
if ( strncmp(lvar_ord_exch_id.arr,"NSE",3) ==0 )
if(tmpExchOrderNo == -1)
insertExchOrderNo = NULL;
else
insertExchOrderNo = tmpExchOrderNo;
else if ( strncmp(lvar_ord_exch_id.arr,"BSE",3) ==0 )
if(tmpExchOrderNo == -1)
insertExchOrderNo = NULL;
else
insertExchOrderNo = tmpExchOrderNo;
lvar_ord_acc_code.len = strlen (lvar_ord_acc_code.arr);
sprintf (lv_UserIdOrLogPktId.arr,"%d",UserIdOrLogPktId );
lv_UserIdOrLogPktId.len = strlen (lv_UserIdOrLogPktId.arr) ;
lEquBseUserCode.len = fTrim(lEquBseUserCode.arr,16);
lvar_ord_buyback_flg.len = fTrim(lvar_ord_buyback_flg.arr,1);
lvar_ord_exch_id.len = fTrim(lvar_ord_exch_id.arr,3);
EXEC SQL AT :db_conn EXECUTE i1 USING
:lvar_ord_order_no ,
:lvar_ord_serial_no ,
:lvar_ord_sem_smst_security_id,
:lvar_ord_btm_emm_mkt_type,
etc. ;
logTimestamp("AFTER inserting in orders table");
/* Divide reported time by NUM_INSERTS to get average time for one insert */
Chris -
Hi All,
I have cloned KSB1 tcode to custom one as required by business.
Below query takes more time than excepted.
Here V_DB_TABLE = COVP.
Values in Where clause are as follows
OBNJR in ( KSBB010000001224 BT KSBB012157221571)
GJAHR in blank
VERSN in '000'
WRTTP in '04' and '11'
all others are blank
VT_VAR_COND = ( CPUDT BETWEEN '20091201' and '20091208' )
SELECT (VT_FIELDS) INTO CORRESPONDING FIELDS OF GS_COVP_EXT
FROM (V_DB_TABLE)
WHERE LEDNR = '00'
AND OBJNR IN LR_OBJNR
AND GJAHR IN GR_GJAHR
AND VERSN IN GR_VERSN
AND WRTTP IN GR_WRTTP
AND KSTAR IN LR_KSTAR
AND PERIO IN GR_PERIO
AND BUDAT IN GR_BUDAT
AND PAROB IN GR_PAROB
AND (VT_VAR_COND).
Checked in table for this condition it has only 92 entries.
But when i execute program takes long time as 3 Hrs.
Could any one help me on this>1.Dont use SELECT/ENDSELECT instead use INTO TABLE addition .
> 2.Avoid using corresponding addition.create a type and reference it.
> If the select is going for dump beacause of storage limitations ,then use Cursors.
you got three large NOs .... all three recommendations are wrong!
The SE16 test is going in the right direction ... but what was filled. Nobody knows!!!!
Select options:
Did you ever try to trace the SE16? The generic statement has for every field an in-condition!
Without the information what was actually filled, nobody can say something there
are at least 2**n combinations possible!
Use ST05 for SE16 and check actual statement plus explain!
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