Simple select query is taking a lot of time

hi gems...
my table has 7267563 rows...and i am doing a simple select * from table;
but it is taking a lot of time nearly 25minutes but not completed...
when i did select count(1) from table then it gave the result instantly also select * from table where rownum < 10 is also fine...even when i am selecting all the records using rownum i.e. select * from table where rownum < 7267563 is also giving result instantly...
but the entire table is not getting result i.e. select * from table...also there is no lock in the table(though i know that select is nothing to do with lock)..
what may be the issue..please suggest...thanks in advance...
Edited by: user12780416 on Dec 12, 2011 11:08 PM

Hi;
Please see below thread
query takes too long ...
help in solving long run query
HOW TO: Post a SQL statement tuning request - template posting
Hope it helps
Regard
Helios

Similar Messages

Can we optimize the query : It is taking a lot of time

the following query is taking a lot of time ...
Can anyone suggest to make it run faster ???
table B has 12 million records
table a has 10000 records
CREATE TABLE less_time
     PARALLEL
     NOLOGGING
     AS
     SELECT a.user_id,a.mp_id, COUNT(product_id) product _count
     FROM table a,table b
     WHERE TRUNC(a.call_time) < TRUNC(SYSDATE) - 1
     AND a.history_id = b.call_id
     AND b.product_type = 1
     AND b..product_status= 50
     AND user_id IS NOT NULL
     GROUP BY user_id,mp_id;

analyze index indx_mtx compute statistics
thanks for explaining David ...
Actually I somewhat bettered it
i made a consolidated index on table b
like create index indx_ty on table b (call_id,mp_id,user_id,b.product_type,product_status)
now the explain plan shows that the query is much much faster also i did one trick in the query
SELECT a.user_id,a.mp_id, COUNT(product_id) product _count
i changed to SELECT a.user_id,a.mp_id, COUNT(1) product _count
to enable it to do FFS
thanks anyways ....

Select query is taking lot of time to fetch data.....

Select query is taking lot of time to fetch data.
    SELECT algnum atanum abdatu abzeit abname abenum bmatnr bmaktx bqdatu bqzeit bvlenr bnlenr bvltyp bvlber b~vlpla
           bnltyp bnlber bnlpla bvsola b~vorga INTO TABLE it_final FROM ltak AS a
                   INNER JOIN ltap AS b ON btanum EQ atanum AND algnum EQ blgnum
                   WHERE a~lgnum = p_whno
                   AND a~tanum IN s_tono
                   AND a~bdatu IN s_tocd
                   AND a~bzeit IN s_bzeit
                   AND a~bname IN s_uname
                   AND a~betyp = 'P'
                   AND b~matnr IN s_mno
                   AND b~vorga <> 'ST'.
Moderator message: Please Read before Posting in the Performance and Tuning Forum
Edited by: Thomas Zloch on Mar 27, 2011 12:05 PM

Hi Shiva,
I am using two more select queries with the same manner ....
here are the other two select query :
***************1************************
SELECT * APPENDING CORRESPONDING FIELDS OF TABLE tbl_summary
    FROM ztftelpt LEFT JOIN ztfzberep
     ON ztfzberep~gjahr = st_input-gjahr
     AND ztfzberep~poper = st_input-poper
     AND ztfzberepcntr = ztftelptrprctr
    WHERE rldnr = c_telstra_projects
      AND rrcty = c_actual
      AND rvers = c_ver_001
      AND rbukrs = st_input-bukrs
      AND racct = st_input-saknr
      AND ryear = st_input-gjahr
      and rzzlstar in r_lstar
      AND rpmax = c_max_period.
and the second one is
*************************2************************
SELECT * APPENDING CORRESPONDING FIELDS OF TABLE tbl_summary
    FROM ztftelnt LEFT JOIN ztfzberep
     ON ztfzberep~gjahr = st_input-gjahr
     AND ztfzberep~poper = st_input-poper
     AND ztfzberepcntr = ztftelntrprctr
    WHERE rldnr = c_telstra_networks
      AND rrcty = c_actual
      AND rvers = c_ver_001
      AND rbukrs = st_input-bukrs
      AND racct = st_input-saknr
      AND ryear = st_input-gjahr
      and rzzlstar in r_lstar
      AND rpmax = c_max_period.
for both the above table program is taking very less time .... although both the table used in above queries have similar amount of data. And i can not remove the APPENDING CORRESPONDING. because i have to append the data after fetching from the tables. if i will not use it will delete all the data fetched earlier.
Thanks on advanced......
Sourabh

A simple select query taking forever

Hi All
I am not able to execute a simple select query, I traced my session and here is TKPROF of that Trace.
Solaris 8 , Oracle 10.2.0.4.0
TKPROF: Release 10.2.0.4.0 -
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Trace file: 502_ora_28260.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
select OBJECT_ID , ORACLE_USERNAME , SESSION_ID
from
v$locked_object
call     count       cpu    elapsed       disk      query    current        rows
Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.00       0.00          0          0          0           0
Fetch        1      0.03      32.86          0          0          6           0
total        3      0.03      32.86          0          0          6           0
Misses in library cache during parse: 1
Optimizer mode: CHOOSE
Parsing user id: SYS
Rows     Row Source Operation
      0 MERGE JOIN (cr=0 pr=0 pw=0 time=60 us)
      0   SORT JOIN (cr=0 pr=0 pw=0 time=58 us)
      0    MERGE JOIN (cr=0 pr=0 pw=0 time=42 us)
      1     SORT JOIN (cr=0 pr=0 pw=0 time=2443 us)
   1105      FIXED TABLE FULL X$KSUSE (cr=0 pr=0 pw=0 time=1204 us)
      0     SORT JOIN (cr=0 pr=0 pw=0 time=41 us)
   1001      FIXED TABLE FULL X$KTCXB (cr=0 pr=0 pw=0 time=16132 us)
      0   SORT JOIN (cr=0 pr=0 pw=0 time=0 us)
      0    FIXED TABLE FULL X$KTADM (cr=0 pr=0 pw=0 time=0 us)
Elapsed times include waiting on following events:
Event waited on                             Times   Max. Wait Total Waited
----------------------------------------   Waited ---------- ------------
SQL*Net message to client                       1        0.00          0.00
buffer busy waits                              34        0.97         32.83
SQL*Net break/reset to client                   1        0.00          0.00
OVERALL TOTALS FOR ALL NON-RECURSIVE STATEMENTS
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      0.03      32.86          0          0          6           0
total        3      0.03      32.86          0          0          6           0
Misses in library cache during parse: 1
Elapsed times include waiting on following events:
Event waited on                             Times   Max. Wait Total Waited
----------------------------------------   Waited ---------- ------------
SQL*Net message to client                       2        0.00          0.00
SQL*Net message from client                     1       19.00         19.00
buffer busy waits                              34        0.97         32.83
SQL*Net break/reset to client                   1        0.00          0.00
OVERALL TOTALS FOR ALL RECURSIVE STATEMENTS
call     count       cpu    elapsed       disk      query    current        rows
Parse        0      0.00       0.00          0          0          0           0
Execute      0      0.00       0.00          0          0          0           0
Fetch        0      0.00       0.00          0          0          0           0
total        0      0.00       0.00          0          0          0           0
Misses in library cache during parse: 0
    1 user SQL statements in session.
    0 internal SQL statements in session.
    1 SQL statements in session.
Trace file: 502_ora_28260.trc
Trace file compatibility: 10.01.00
Sort options: default
       0 session in tracefile.
       1 user SQL statements in trace file.
       0 internal SQL statements in trace file.
       1 SQL statements in trace file.
       1 unique SQL statements in trace file.
      64 lines in trace file.
      32 elapsed seconds in trace file. There is nothing fishy in alert logs... Please guide
Thanks

There it is TOP
$ RUMPSHAKER>top
load averages: 6.63, 7.45, 7.88;                    up 33+12:02:33
3631 processes: 3616 sleeping, 5 zombie, 1 stopped, 9 on cpu
CPU states: 58.6% idle, 18.2% user, 23.2% kernel, 0.0% iowait, 0.0% swap
Memory: 192G phys mem, 92G free mem, 96G swap, 96G free swap
   PID USERNAME LWP PRI NICE SIZE   RES STATE    TIME    CPU COMMAND
13752 ora0005    1 19    0 4243M 4219M sleep    5:21 62.78% oracle
17758 ora0005    1 25    0 1174M 1156M cpu      1:05 37.12% oracle
17923 root       1 57    0   18M   14M sleep 689:07 13.59% ecap_monitor
20777 root      12 58    0   14M   13M sleep 864:33 11.55% OracleAgent
18884 ora0004    1   1    0 830M 813M sleep    0:01 9.54% oracle
12070 ora0004   61 58    0 320M 315M sleep   28.5H 8.29% emagent
20347 root      16 59    0   33M   25M sleep   26.0H 6.34% caiUxsA2
17949 ist0005    1 53    0 7984K 4984K cpu      0:00 3.93% top
     1 root       1 59    0 2912K 1288K sleep   32.2H 3.75% init
15035 ora0001    1 46    0   32M   22M sleep 166:43 2.98% tnslsnr
5748 ora0004   11 54    0 516M 496M sleep 389:37 2.78% oracle
20567 ora0004    1 55    0   27M   22M sleep    0:00 2.69% sqlplus
6730 ora0001    1 33    0 632M 616M sleep    0:06 2.67% oracle
20557 ora0004    1 56    0   27M   23M sleep    0:00 2.53% sqlplus
5355 ora0005    1 59    0 1154M 1137M sleep    0:04 2.46% oracleand VMSTAT 2 5
$ RUMPSHAKER> vmstat 2 5
kthr      memory            page            disk          faults      cpu
r b w   swap free re mf pi po fr de sr s0 s1 s2 sd   in   sy   cs us sy id
6 8 0 143125576 74272080 4628 24012 488 150 149 0 0 4 4 -2 0 25037 192698 65249 38 26 36
1 3 0 162803992 95246464 1989 6989 0 4 4 0 0 6 6 0 0 9170 57822 26434 8 13 79
1 7 0 162801352 95240296 3043 15633 4 9737 9682 0 0 0 0 0 0 11277 73516 38200 16 16 68
3 10 0 162801560 95227920 3326 12729 16 16862 16774 0 0 1 1 0 0 11377 86054 44758 16 17 68
1 10 0 162784520 95186488 9638 48359 24 11682 11626 0 0 13 13 0 0 13484 149366 44205 23 29 47

Select Command taking a lot of time to execute

Dear Experts,
My below SELECT command taking a lot of time to execute.
      SELECT wid
                   matl_desc
                   INTO TABLE open_wid FROM zwb_table
                   WHERE ( weight2 = 0 OR weight2 IS NULL ).
Table : zwb_table contains around 7 Lacs records. That's why taking a lot of time . I have also Indexed the table zwb_table with field WID & WEIGHT2 . (zwb_table contains only WID as Primary Key Field)
Structure of Internal Table : open_wid ->
                                         wid LIKE zwb_table-wid,
                                         matl_desc LIKE zwb_table-matl_desc,
Please suggest me how to Improve the Performance of the above Select command.
Thanks in Advance
JACK

Hi Jack,
you are having morethan 7lack records in z table. it is not good practice fetching all the records into internal table and restricting with where clause in loop statement.
I hope you already created secondary index combination of primary key.
check you select query fetching records based on index you have created in ST05.
Refer below link for your program is using index that you have created.
Re: Indexing
Regards,
Peranandam
Edited by: peranandam chinnathambi on Apr 7, 2009 8:38 AM

Concurrent request is taking a lots of time to run

Hi,
I have one query regarding ICM.
one of the concurrent request is taking a lots of time to run. How can I solve the issue.
Is there any steps to diagnose this issue?
Please reply.
Regards,
Manish

Hi,
How we can find that particular request are taking long time?See your other thread.
Concurrent request taking long time
Concurrent request taking long time
what is "gather statistrics schema" concurent program and what it does?See (Note: 419728.1 - How To Gather Statistics On Oracle Applications 11.5.10(and above) - Concurrent Process,Temp Tables, Manually).
Regards,
Hussein

Startup taking a LOT of Time

Hi All,
We have our application on Weblogic Server 8.1 SP5 and its taking a lot of time while starting up.
What I found that these lines are the ones which are taking up majority of the time.
Kindly Suggest how we can improve on this.
####<Jun 15, 2009 4:14:59 PM GMT+05:30> <Info> <Deployer> <sunbom4> <cgServer> <main> <<WLS Kernel>> <> <BEA-149060> <Module uddi of application uddi successfully transitioned from unprepared to prepared on server cgServer.>
This line took more than 2 min.
####<Jun 15, 2009 4:16:50 PM GMT+05:30> <Info> <Deployer> <sunbom4> <cgServer> <main> <<WLS Kernel>> <> <BEA-149060> <Module MLAppCoreWL610.jar of application IntellectMM successfully transitioned from unprepared to prepared on server cgServer.>
####<Jun 15, 2009 4:18:23 PM GMT+05:30> <Info> <Deployer> <sunbom4> <cgServer> <main> <<WLS Kernel>> <> <BEA-149060> <Module OpenFXWrapperEJB.jar of application IntellectMM successfully transitioned from unprepared to prepared on server cgServer.>
The above 2 lines are taking 1.5min each.

I suggest that you take some thread dumps 10-15 secs apart during the time it's slow. The log timing alone won't tell you where the threads are spending time.

Mac taking a lot more time

My Mac is taking a lot more time to load photos from iPhone and iPad than was taking before.What can be the reason of it ?
Thanks

DO NOT INSTALL MACKEEPER or any other so called 'cleaning ' application. Please read the following user tip:
https://discussions.apple.com/docs/DOC-3036
Look for reasons in this user tip for your issues of slow operation:
https://discussions.apple.com/docs/DOC-3521
Ciao.

My Ideapad N581 is taking a lot of time to start up ....Can experts help?

My laptop is taking a lot of time to start up.It just shows the Lenovo screen and stops there.What could be the problem?
Thanksin advance.

hi mamuninayak,
The system might be experiencing a boot or a POST issue.
- Remove all USB devices.
- Remove the AC adapter and battery then held down the power button for 15 sec.
Reconnect just the AC and try.
-See if BIOS can be reset.
Start hiting F2 when while powering the system on.
If succesfull in booting into BIOS. Hit F9 the F10
Try Removing the Harddrive and turn the system on, See if there will be any changes.
Hope this helps
Cheers!
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
Follow @LenovoForums on Twitter!

My iPad is taking a lot of time to factory reset..What should I do?

Hello,
I am currently factory resetting my iPad , but i forgot to do it using my pc , so I did it without using iTunes , I did it using the option in the iPad's settings but it is taking a lot of time , so far it has been 2 hours ... What should I do if it takes more than 5 hours or so?
Thanks in advance,

hi mamuninayak,
The system might be experiencing a boot or a POST issue.
- Remove all USB devices.
- Remove the AC adapter and battery then held down the power button for 15 sec.
Reconnect just the AC and try.
-See if BIOS can be reset.
Start hiting F2 when while powering the system on.
If succesfull in booting into BIOS. Hit F9 the F10
Try Removing the Harddrive and turn the system on, See if there will be any changes.
Hope this helps
Cheers!
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
Follow @LenovoForums on Twitter!

Background task taking a lot of time to execute

Hi,
There is a background task in my workflow which is taking a lot of time to execute.
I have tested it in dialog mode.. and it works fine.. takes just 2 mins.
Only when the task is executed from background.. it takes about 10 mins.
Is this a config problem? How do I check if it is so?

you could try activating a trace (sql) and see what the differences are,.
you could check if maybe user parameters are influencing this. Or ask your basis team if there are a lot of differences between syystem users and dialog users in terms of resource allocation.
Did you find anything different whilst debugging it?
Kind regards, Rob Dielemans

Hello i have a problem that i was making update IOS7 for my i phone 5 it's taking a lot of time about 4 hours till now, i can't use my phone know, it's appere logo i tunes only, can't do eny thing else like shutdown

Hello i have a problem that i was making update IOS7 for my i phone 5 it's taking a lot of time about 4 hours till now, i can't use my phone know, it's appere logo i tunes only, can't do eny thing else like shutdown

Hey Andrew keriakous,
Thanks for the question. It sounds like your iPhone may be in recovery-mode. To resolve this issue, see the following:
If you can't update or restore your iOS device
http://support.apple.com/kb/HT1808
Thanks,
Matt M.

My ipod was disabled and i tried to restore it, now i am downloading an apple software update which is taking a **** lot of time and ipod is still disabled.. will it be ok after the download ends? help please..!!

my ipod was disabled and i tried to restore it, now i am downloading an apple software update which is taking a **** lot of time and ipod is still disabled.. will it be ok after the download ends? help please..!!

We need to know more about your system, please download EtreCheck and run the report and please post it on your next reply. Then we can see how your system is configured, what apps are on it and look for anything obvious. We will look forward to seeing your report.

Input help on 0Fiscper taking a lot of time

Hi all
1. Whenever i open the input help for the 0fiscper from the Variable selection screen it takes a lot of time (huge amt of time)
2. Whereas there are only 24 values present for it.
3. But when I open the input help through the ´select filter value´ it opens pretty fast.
4. This problem is with only 0fiscper which is BI Content InfoObject & happens only on particular ODS 0FIGL_O02 which is again a SAP std Object .
5. This problem has started just in the last few days , wasnt there earlier.
Thanks
Ramesh

Hi!
Did you find any solutions because I'm facing on the same problem. When I launch it in RSRT, there is no problem but whern I try it in the Java partal, it runs and doesn't work.
Thanks in avdvance.
Ronan

Expdp is taking a lot of time

hi,
I have a small schema in a database housing lots of users.
The expdp is taking a lot of time for this schema eventhough the old exp takes 1/10 th time.
When i switched on the trace i see its stuck at below on <SID>dw0115741.trc trace file
KUPW: 03:40:41.551: 1: DBMS_LOB.TRIM returned
KUPW: 03:40:41.551: 1: DBMS_METADATA.FETCH_XML_CLOB called
its stuck at
Starting "USER"."USER_JOB": USER/******** dumpfile=USER.dp logfile=USER.log job_name=USER_job parallel=4 exclude=grant,index,trigger,constraint,statistics,index_statistics trace=1FF0300 directory=EXPDP_BKP
Estimate in progress using BLOCKS method...
Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA
I have replaces the actual username with USER
sga_target 2147483648
sga_max_size 2634022912
streams_pool_size 0
Does any one has any suggestion?
I tried the metalink as well but didnt find anything useful
Thanks
Shipra

Pl post details of OS and database versions
Pl see is MOS Doc 453895.1 (Checklist for Slow Performance of Export Data Pump (expdp) and Import DataPump (impdp)) - "Defects 10/11" - can help
HTH
Srini

Simple select query is taking a lot of time

Similar Messages

Maybe you are looking for