Long Running Count Function

I'm new to the Windows environment for running Oracle and I'm having some performance issues with a report that I'm reviewing....
I found that one of the tables being utilized by this report has 100,000,000 rows in it....When I run a SELECT COUNT(*) FROM T_FIELD, it takes 75 seconds to return the result....
Although this seems like a lot of data to simply count and return shouldn't take that long....In my experience on Unix environments, a similar request would take 3 - 4 seconds....
Is there a way to tell, if this is a performance issue with the box, Oracle configuration, or just not enough stuff in the box to properly power our Oracle environment with sufficient speed....
I've set up STATSPACK and run while executing this COUNT......And compared the report against the idle database.....But I'm not sure what it's telling me....
Here are some specifics about my environment.....
Server: Windows Server 2003 - Service Pack 1
Processor - Xeon 3.4 GHz(1)
Memory - 3.5 Gig
Disk - C:\ 67.8 Gig
D:\ Raid 5 - 838 Gig
Oracle 9.2.0.8.0 Enterprise Edition
SGA Environment
Shared Pool - 152 MB
Buffer Cache - 256 MB
Lagre Pool - 104 MB
Java Pool - 80 MB
SGA Max Size - 617.071 MB
Any help in determining why this COUNT function takes so long would be greatly appreciated....
JDB

> Although this seems like a lot of data to simply count and return shouldn't
take that long....In my experience on Unix environments, a similar request would
take 3 - 4 seconds....
Yeah.. no matter how much I like Linux and dislike Windows as an Oracle platform, that statement has no relevance at all. Linux/Unix does not mean 'Oracle fast' and Windoes does not mean 'Oracle slow'. Implying it does is a gross misunderstanding of o/s and Oracle architectures.
One SELECT COUNT can be very different from another. On the very same instance on the very same platform. And now you want to compare the "average" SELECT COUNT performance on Linux/Unix with that on Windows? There is nothing logical or sensible about attempting such a comparison - never mind the fact that there is no such thing as an "average" SELECT COUNT performance.
The very first thing to establish is HOW that SELECT COUNT is executed. Does it perform a full table scan? Does it perform an fast full index scan? Does it scan a bitmap index? Etc.
Post the execution plan.
And yes - one look at this level of detail long before popping the hood on Oracle configuration settings and trying "silver bullets" to slay the performance monster.

Similar Messages

How to run ABAP Function Module in Background Wchich Takes Long Time to Run

How to run ABAP Function Module in Background FOR LONG TIME
I am not that experienced with ABAP. I am on SAP BI 7.0. I WANT TO RUN A FUNCTION MODULE
RSDRT_INFOCUBE_DATA_COPY.
I used SE37 and then executed the module, I supplied the parameters on the form which opped-up and then program started running. . Program was however interrupted after 10 minutes by ABAP. How can I run it in background without interruption?
THANKS A LOT.

Hi,
You can call this FM in a program and run that program in background.
Regards,
Raju

Long running statement including function

Hello expert,
I have a long running statement and corresponding function as follows:
select
pp.policy_premium_pk,
pp.policy_fk,
pp.policy_term_fk,
pp.risk_fk,
pp.coverage_fk,
pp.transaction_log_fk,
pp.coverage_component_code,
hiroc_rpt_user.hiroc_get_delta_amount(pp.policy_fk, pp.policy_term_fk, pp.risk_fk, pp.coverage_fk, pp.transaction_log_fk, pp.coverage_component_code),
pp.rate_period_from_date
from proddw_mart.rmv_policy_premium pp
where pp.rate_period_type_code = 'TERM_COVG'
and pp.coverage_component_code <> 'NETPREM'
-- and pp.premium_amount <> 0
-- *** Following line is included for faster performance
and hiroc_rpt_user.hiroc_get_delta_amount(pp.policy_fk, pp.policy_term_fk, pp.risk_fk, pp.coverage_fk, pp.transaction_log_fk, pp.coverage_component_code) != 0
group by pp.policy_premium_pk,
pp.policy_premium_pk,
pp.policy_fk,
pp.policy_term_fk,
pp.risk_fk,
pp.coverage_fk,
pp.transaction_log_fk,
pp.coverage_component_code,
pp.rate_period_from_date;
CREATE OR REPLACE FUNCTION HIROC_RPT_USER."HIROC_GET_DELTA_AMOUNT" (
p_policy_fk IN NUMBER,
p_policy_term_history_fk IN NUMBER,
p_risk_fk IN NUMBER,
p_coverage_fk IN NUMBER,
p_transaction_log_fk IN NUMBER,
p_comp_code IN VARCHAR2)
RETURN NUMBER
IS
v_prev_trlog_fk NUMBER;
v_delta NUMBER;
v_parm VARCHAR2(1000);
v_msg VARCHAR2(200);
comma VARCHAR2(1) := ',';
v_src VARCHAR2(100) := 'Get_Delta_Amount';
BEGIN
SELECT nvl(MAX(pp.transaction_log_fk), -1)
INTO v_prev_trlog_fk
FROM proddw_mart.rmv_Policy_Premium pp
WHERE pp.coverage_fk = p_coverage_fk
AND pp.policy_term_fk = p_policy_term_history_fk
AND pp.transaction_log_fk+0 < p_transaction_log_fk
AND pp.coverage_component_code = p_comp_code
AND pp.rate_period_type_code = 'TERM_COVG';
SELECT nvl(SUM(decode(pp.transaction_log_fk, p_transaction_log_fk, premium_amount, 0)), 0) -
nvl(SUM(decode(pp.transaction_log_fk, p_transaction_log_fk, 0, pp.premium_amount)), 0)
INTO v_delta
FROM proddw_mart.rmv_Policy_Premium pp
WHERE pp.coverage_fk = p_coverage_fk
AND pp.policy_term_fk = p_policy_term_history_fk
AND pp.transaction_log_fk+0 IN (p_transaction_log_fk, v_prev_trlog_fk)
AND pp.rate_period_type_code = 'TERM_COVG'
AND INSTR(p_comp_code, pp.coverage_component_code) > 0;
RETURN v_delta;
EXCEPTION
WHEN NO_DATA_FOUND THEN
return 0;
WHEN OTHERS THEN
return 0;
END;
and it execution plan is as follows:
PLAN_TABLE_OUTPUT
Plan hash value: 319541564
| Id | Operation | Name | Rows | Bytes |TempSpc| Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 92525 | 5511K| | 17417 (4)| 00:03:30 |
| 1 | HASH GROUP BY | | 92525 | 5511K| 14M| 17417 (4)| 00:03:30 |
|* 2 | MAT_VIEW ACCESS FULL| RMV_POLICY_PREMIUM | 92525 | 5511K| | 16045 (4)| 00:03:13 |
Predicate Information (identified by operation id):
2 - filter("PP"."RATE_PERIOD_TYPE_CODE"='TERM_COVG' AND
"PP"."COVERAGE_COMPONENT_CODE"<>'NETPREM' AND
"HIROC_RPT_USER"."HIROC_GET_DELTA_AMOUNT"("PP"."POLICY_FK","PP"."POLICY_TERM_FK","PP"."RISK_
FK","PP"."COVERAGE_FK","PP"."TRANSACTION_LOG_FK","PP"."COVERAGE_COMPONENT_CODE")<>0)

As the first (warming up) step you could rewrite your function to do it's task with a single select
CREATE OR REPLACE FUNCTION
HIROC_RPT_USER."HIROC_GET_DELTA_AMOUNT" (p_policy_fk IN NUMBER, /* not used */
                                         p_policy_term_history_fk IN NUMBER,
                                         p_risk_fk IN NUMBER,    /* not used */
                                         p_coverage_fk IN NUMBER,
                                         p_transaction_log_fk IN NUMBER,
                                         p_comp_code IN VARCHAR2
RETURN NUMBER
IS
v_prev_trlog_fk NUMBER;
v_delta NUMBER;
BEGIN
SELECT nvl(MAX(pp.transaction_log_fk), -1)
    INTO v_prev_trlog_fk
    FROM proddw_mart.rmv_Policy_Premium pp
   WHERE pp.coverage_fk = p_coverage_fk
     AND pp.policy_term_fk = p_policy_term_history_fk
     AND pp.transaction_log_fk+0 < p_transaction_log_fk
     AND pp.coverage_component_code = p_comp_code
     AND pp.rate_period_type_code = 'TERM_COVG';
SELECT nvl(SUM(decode(pp.transaction_log_fk, p_transaction_log_fk, premium_amount, 0)), 0) -
         nvl(SUM(decode(pp.transaction_log_fk, p_transaction_log_fk, 0, pp.premium_amount)), 0)
    INTO v_delta
    FROM proddw_mart.rmv_Policy_Premium pp
   WHERE pp.coverage_fk = p_coverage_fk
     AND pp.policy_term_fk = p_policy_term_history_fk
     AND pp.transaction_log_fk+0 IN (p_transaction_log_fk, v_prev_trlog_fk)
     AND pp.rate_period_type_code = 'TERM_COVG'
     AND INSTR(p_comp_code, pp.coverage_component_code) > 0;
select nvl(sum(case transaction_log_fk when p_transaction_log_fk
                                         then premium_amount
                                         else -premium_amount
                 end
             0
    into v_delta
    from proddw_mart.rmv_Policy_Premium
   where coverage_fk = p_coverage_fk
     and policy_term_fk = p_policy_term_history_fk
     and instr(p_comp_code,coverage_component_code) > 0
     and rate_period_type_code = 'TERM_COVG'
     and transaction_log_fk in (select p_transaction_log_fk,nvl(max(transaction_log_fk),-1)
                                   from proddw_mart.rmv_Policy_Premium
                                  where coverage_fk = p_coverage_fk
                                    and policy_term_fk = p_policy_term_history_fk
                                    and transaction_log_fk < p_transaction_log_fk
                                    and coverage_component_code = p_comp_code
                                    and rate_period_type_code = 'TERM_COVG'
RETURN v_delta;
EXCEPTION
WHEN NO_DATA_FOUND THEN return 0;
WHEN OTHERS THEN return 0;
END;in the next step you could get rid of the function call:
something along the lines of
select pp.policy_premium_pk,
       pp.policy_fk,
       pp.policy_term_fk,
       pp.risk_fk,
       pp.coverage_fk,
       pp.transaction_log_fk,
       pp.coverage_component_code,
       nvl(sum(case f.transaction_log_fk when pp.transaction_log_fk
                                         then f.premium_amount
                                         else -f.premium_amount
               end
           0
          ) premium_amount,
       pp.rate_period_from_date
from proddw_mart.rmv_policy_premium pp,
       (select p.premium_amount,
               p.policy_term_fk,
               p.coverage_fk,
               p.transaction_log_fk,
               p.coverage_component_code
          from proddw_mart.rmv_Policy_Premium p
         where p.rate_period_type_code = 'TERM_COVG'
           and instr('NETPREM',coverage_component_code) > 0
       ) f
where pp.rate_period_type_code = 'TERM_COVG'
   and pp.coverage_component_code = 'NETPREM'
   and pp.policy_term_fk = f.policy_term_fk
   and pp.coverage_fk = f.coverage_fk
   and (
        pp.transaction_log_fk = f.transaction_log_fk
    or
        pp.transaction_log_fk = (select nvl(max(transaction_log_fk),-1)
                                   from proddw_mart.rmv_Policy_Premium
                                  where rate_period_type_code = 'TERM_COVG'
                                    and coverage_component_code = 'NETPREM'
                                    and policy_term_fk = pp.policy_term_fk
                                    and coverage_fk = pp.coverage_fk
                                    and transaction_log_fk < pp.transaction_log_fk
group by pp.policy_premium_pk,
          pp.policy_premium_pk,
          pp.policy_fk,
          pp.policy_term_fk,
          pp.risk_fk,
          pp.coverage_fk,
          pp.transaction_log_fk,
          pp.coverage_component_code,
          pp.rate_period_from_dateRegards
Etbin

How to run ABAP Function Module in Background FOR LONG TIME?

I am not that experienced with ABAP. I am on SAP BI 7.0. I WANT TO RUN A FUNCTION MODULE
RSDRT_INFOCUBE_DATA_COPY.
I used SE37 and then executed the module, I supplied the parameters on the form which opped-up and then program started running. . Program was however interrupted after 10 minutes by ABAP. How can I run it in background without interruption?
THANKS A LOT.

Change parameter rdisp/max_wprun_time.
Default value for this is 600 seconds (10minutes).Change it to a time which you think you need for copying infocube data.
May be 5 hours.
PS:You can not run Function Module in background directly,but you can create a Z* program and call that FM from within that program and then run the program in background.
Hope this answers your query. Best of Luck!
Thanks and Regards
Anindya
Edited by: Anindya Bose on Jun 30, 2009 1:24 PM

NiDAQ 6008 -- Long running task stability

I have a small C program using nidaqmxbase, based on the example code provided.
This runs with a usb connected 6008 on a Red Hat Linux machine. The task is simple, read the analog voltage (differential, reference source 2.5v range) from one channel at 1000hz in blocks of 50 samples. The results are placed into network messages to send to another program for analysis.
This program works fine, but has a long run-time stability issue when left running for more than about 24 hours continuously (and, for my application I need to capture in realtime 24/7 indefinitly). The symptom observed is that the 6008 stops returning data -- and "lsdaq" shows that the device is no longer seen by the system. Sometimes the green LED stops blinking as well. Has the DAQ crashed? Did some counter overflow and cause the driver to malfunction? I am able to restore function only by physically disconnecting and re-connecting the 6008.
Thank you
Andy.

Hi aws-
It sounds like the problem you are seeing could be related to bus powering or resource conflicts on your system. The fact that the failure results in total loss of connectivity with your device certainly seems to indicate a hardware problem.
You said your code is based on the example code; please verify if an unmodified shipping example fails similarly. If so, please let us know which program fails and I will attempt to replicate the issue here. Do you see this problem on multiple computers and/or with multiple USB-6008 devices?
Thanks-
Tom W
National Instruments

Error in running a function to convert coordinates in degrees to decimal for EXCEL VBA

For your information, I have 3 cross-posts regarding this question - and all I can said there is still no firm solution regarding this error.
1) http://stackoverflow.com/questions/27634586/error-in-running-a-function-to-convert-coordinates-in-degrees-to-decimal-for-exc/27637367#27637367
2) http://www.mrexcel.com/forum/excel-questions/826099-error-running-function-convert-coordinates-degrees-decimal-excel-visual-basic-applications.html#post4030377
3) http://www.excelguru.ca/forums/showthread.php?3909-Error-in-running-a-function-to-convert-coordinates-in-degrees-to-decimal-for-EXCEL-VB&p=16507#post16507
and the story of the error is as below:
Currently I am working on VBA excel to create a widget to verify coordinates whether it lies under the radius of ANOTHER predefined and pre-specified sets of coordinates.
In the module, I want to convert the coordinates from degrees to decimal before doing the calculation - as the formula of the calculation only allow the decimal form of coordinates.
However, each and every time I want to run the macros this error (Run-time error '5', invalid procedure call or argument) will appear. Then, the debug button will bring me to below line of coding:
degrees = Val(Left(Degree_Deg, InStr(1, Degree_Deg, "°") - 1))
For your information, the full function is as below:
Function Convert_Decimal(Degree_Deg As String) As Double
'source: http://support.microsoft.com/kb/213449
Dim degrees As Double
Dim minutes As Double
Dim seconds As Double
Degree_Deg = Replace(Degree_Deg, "~", "°")
degrees = Val(Left(Degree_Deg, InStr(1, Degree_Deg, "°") - 1))
minutes = Val(Mid(Degree_Deg, InStr(1, Degree_Deg, "°") + 2, _
InStr(1, Degree_Deg, "'") - InStr(1, Degree_Deg, "°") - 2)) / 60
seconds = Val(Mid(Degree_Deg, InStr(1, Degree_Deg, "'") + _
2, Len(Degree_Deg) - InStr(1, Degree_Deg, "'") - 2)) / 3600
Convert_Decimal = degrees + minutes + seconds
End Function
Thank you.
Your kind assistance and attention in this matter are highly appreciated.
Regards,
Nina.

You didn't give an example of your input string but try the following
Sub test()
Dim s As String
s = "180° 30' 30.5""""" ' double quote for seconds
Debug.Print Deg2Dec(s) ' 180.508472222222
End Sub
Function Deg2Dec(sAngle As String) As Double
Dim mid1 As Long
Dim mid2 As Long
Dim degrees As Long
Dim minutes As Long
Dim seconds As Double ' or Long if only integer seconds
sAngle = Replace(sAngle, " ", "")
mid1 = InStr(sAngle, "°")
mid2 = InStr(sAngle, "'")
degrees = CLng(Left$(sAngle, mid1 - 1))
minutes = CLng(Mid$(sAngle, mid1 + 1, mid2 - mid1 - 1))
seconds = Val(Mid$(sAngle, mid2 + 1, 10)) ' change 10 to 2 if only integer seconds
Deg2Dec = degrees + minutes / 60 + seconds / 3600
End Function
As written the function assumes values for each of deg/min/sec are included with unit indicators as given. Adapt for your needs.
In passing, for any work with trig functions you will probably need to convert the degrees to radians.

Script to kill long running reports in OBIEE

Hi
I have requirement to kill long running reports . I am using OBIEE version 10.1.3.4.0 which has a bug where it is not taking query limits governor and the reports are not getting killed if i am setting that parameter in RPD.
Oracle support has advised me to upgrade to next version, but for now, i cannot upgrade.
Can anyone suggest me script to run on obiee app server that can kill long running reports on obiee and database server.
I have AIX server and all reports run on database with same functional ID that is being used for ETL as well to Analytics database.

Shikhs17 wrote:
Hi
I have requirement to kill long running reports . I am using OBIEE version 10.1.3.4.0 which has a bug where it is not taking query limits governor and the reports are not getting killed if i am setting that parameter in RPD.
Oracle support has advised me to upgrade to next version, but for now, i cannot upgrade.
Can anyone suggest me script to run on obiee app server that can kill long running reports on obiee and database server.
I have AIX server and all reports run on database with same functional ID that is being used for ETL as well to Analytics database.Do you want to enforce the limitation on the database to automatically kill running sessions that run over specific period of time?

Counter function value to multiple elements as same value in different node

I need your help!
I have a counter function and value of that needs to be passed to two elements of Node A and Sub Node B..
Ex: Mapping
Map Counter function to NodeA.Element1 and also to NodeB(subnode).Element2
Expected Result:
NodA.Element1 = 1
NodeB.Element2 =1
but I am getting the result as
NodA.Element1 = 1
NodeB.Element2 =2
I understand the reason.. since the counter function is called each time..
so my questions is how do I the expected result as mentioned--
NodA.Element1 = 1
NodeB.Element2 =1
remember the XML is multiple occurence(1.. unbounded for both the nodes)
Thanks-Gopal

I think I did not explain phrase it correctly..Technicallyh NodeA.Element1 value should be copied to NodeB.Element2..As long as I can generate counter to NodeA.Element1 and hold the value somewhere to copy to NodeB.Element2, that would be fine..
the above suggestion you guys made would not work as it will create two different set of sequences.. however Index suggestion might work differently but still I might go out of sequence if I have multiple detail record for each master record..
Here the expected output (concise)
Record 1 - NodeA.Element1 = 1
Record 2 -NodeB.Element2=1
Record3- NodeA.Element1 =2
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Record5 - NodeB.Element2=2 --> two detail records
please help

Long running query--- included steps given by Randolf

Hi,
I have done my best to follow Randolf instruction word-by-word and hope to get solution for my
problem soon. Sometime back I have posted a thread on this problem then got busy with other
stuff and was not able to follow it. Here I am again with same issue.
here is link for my previous post
long running query in database 10gHere is backgroud of my requriemment.
I am working on Oracle forms 10g which is using package given below. We want to display client information
with order count basd on different status like Pending, Error, back Order, expedited, std shipping.
Output will look something like.
client name   pending    error   backorder   expedited   std shipping
ABC            24         0       674          6789         78900
XYZ            35         673    5700           0           798274
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When i run package from Oracle Form Developer it takes 3 mintues to run but when I run same query in our application using forms
(which uses Oracle Application Server) it takes around 1 hour, which is completly unacceptable.
User wants it be done in less than 1 mintue.
I have tried combining Pending,error and backorder queries together but as far as I know it will not
work in Oracle Form as we need a place holder for each status.
Please dont think it is Forms related question, it is a Performance problem.
PACKAGE BODY ORDER_COUNT_PKG IS
PROCEDURE post_query IS
BEGIN
     BEGIN
          SELECT count(*)
            INTO :ORDER_STATUS.PENDING
            FROM orders o
        WHERE o.status = 'P'
             AND (parent_order_id is null
              OR (order_type='G'
                   AND parent_order_id=original_order_number))
                  AND o.client = :ORDER_STATUS.CLIENT_NUMBER;
     EXCEPTION
       WHEN OTHERS THEN
       NULL;
     END;
       BEGIN
           SELECT count(*)
             INTO :ORDER_STATUS.ERROR
             FROM orders o
            WHERE o.status = 'E'
              AND (parent_order_id is null
               OR (order_type='G'
                     AND parent_order_id=original_order_number))
                   AND o.client = :ORDER_STATUS.CLIENT_NUMBER;
            EXCEPTION
       WHEN OTHERS THEN
       NULL;
        END;
     BEGIN
          SELECT count(*)
            INTO :ORDER_STATUS.BACK_ORDER
            FROM orders o
        WHERE o.status = 'B'
             AND (parent_order_id is null
              OR (order_type='G'
                   AND parent_order_id=original_order_number))
                  AND o.client = :ORDER_STATUS.CLIENT_NUMBER;
      EXCEPTION
       WHEN OTHERS THEN
       NULL;
     END;
     BEGIN
          SELECT count(*)
            INTO :ORDER_STATUS.EXPEDITE
            FROM orders o,shipment_type_methods stm
           WHERE o.status in ('A','U')
         AND (o.parent_order_id is null
          OR (o.order_type = 'G'
         AND o.parent_order_id = o.original_order_number))
         AND o.client = stm.client
         AND o.shipment_class_code = stm.shipment_class_code
         AND (nvl(o.priority,'1') = '2'
          OR stm.surcharge_amount <> 0)
                  AND o.client = :ORDER_STATUS.CLIENT_NUMBER
          GROUP BY o.client;
          EXCEPTION
       WHEN OTHERS THEN
       NULL;
     END;
     BEGIN
          SELECT count(*)
            INTO :ORDER_STATUS.STD_SHIP
            FROM orders o,shipment_type_methods stm
           WHERE o.status in ('A','U')
         AND (o.parent_order_id is null
          OR (o.order_type = 'G'
         AND o.parent_order_id = o.original_order_number))
         AND nvl(o.priority,'1') <> '2'
         AND o.client = stm.client
         AND o.shipment_class_code = stm.shipment_class_code
         AND stm.surcharge_amount = 0
                  AND o.client = :ORDER_STATUS.CLIENT_NUMBER
          GROUP BY o.client;
      EXCEPTION
       WHEN OTHERS THEN
       NULL;
     END;
END post_query;
END ORDER_COUNT_PKG;one of the query which is taking long time is
SELECT count(*)
             FROM orders o,shipment_type_methods stm
           WHERE o.status in ('A','U')
         AND (o.parent_order_id is null
          OR (o.order_type = 'G'
         AND o.parent_order_id = o.original_order_number))
         AND nvl(o.priority,'1') <> '2'
         AND o.client = stm.client
         AND o.shipment_class_code = stm.shipment_class_code
         AND stm.surcharge_amount = 0
           AND o.client = :CLIENT_NUMBER
          GROUP BY o.clientThe version of the database is 10.2.1.0.2
SQL> alter session force parallel dml;These are the parameters relevant to the optimizer:
SQL> show parameter user_dump_dest
NAME                                 TYPE        VALUE
user_dump_dest                       string      /u01/app/oracle/admin/mcgemqa/
                                                 udump
SQL> show parameter optimizer
NAME                                 TYPE        VALUE
optimizer_dynamic_sampling           integer     2
optimizer_features_enable            string      10.2.0.4
optimizer_index_caching              integer     0
optimizer_index_cost_adj             integer     100
optimizer_mode                       string      ALL_ROWS
optimizer_secure_view_merging        boolean     TRUE
SQL> show parameter db_file_multi
NAME                                 TYPE        VALUE
db_file_multiblock_read_count        integer     16
SQL> show parameter db_block_size
NAME                                 TYPE        VALUE
db_block_size                        integer     8192
SQL> show parameter cursor_sharing
NAME                                 TYPE        VALUE
cursor_sharing                       string      EXACTHere is the output of EXPLAIN PLAN:
SQL> explain plan for
2 SELECT count(*)
3         FROM orders o,shipment_type_methods stm
4       WHERE o.status in ('A','U')
5           AND (o.parent_order_id is null
6            OR (o.order_type = 'G'
7           AND o.parent_order_id = o.original_order_number))
8           AND nvl(o.priority,'1') <> '2'
9           AND o.client = stm.client
10           AND o.shipment_class_code = stm.shipment_class_code
11           AND stm.surcharge_amount = 0
12     AND o.client = :CLIENT_NUMBER
13    GROUP BY o.client
14 /
Explained.
Elapsed: 00:00:00.12
SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
Plan hash value: 559278019
| Id | Operation                      | Name                    | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT               |                         |     1 |    35 | 46764   (3)| 00:09:22 |
|   1 | SORT GROUP BY NOSORT          |                         |     1 |    35 | 46764   (3)| 00:09:22 |
|* 2 |   TABLE ACCESS BY INDEX ROWID | ORDERS                  |   175K| 3431K| 25979   (3)| 00:05:12 |
|   3 |    NESTED LOOPS                |                         | 25300 |   864K| 46764   (3)| 00:09:22 |
|* 4 |     TABLE ACCESS BY INDEX ROWID| SHIPMENT_TYPE_METHODS   |     1 |    15 |     2   (0)| 00:00
|* 5 |      INDEX RANGE SCAN          | U_SHIPMENT_TYPE_METHODS |     2 |       |     1   (0)| 00:00:01 |
|* 6 |     INDEX RANGE SCAN           | ORDERS_ORDER_DATE       |   176K|       | 2371   (8)| 00:00:29 |
Predicate Information (identified by operation id):
   2 - filter(("O"."PARENT_ORDER_ID" IS NULL OR "O"."ORDER_TYPE"='G' AND
              "O"."PARENT_ORDER_ID"=TO_NUMBER("O"."ORIGINAL_ORDER_NUMBER")) AND NVL("O"."PRIORITY",'1')<>'2
              AND "O"."SHIPMENT_CLASS_CODE"="STM"."SHIPMENT_CLASS_CODE")
   4 - filter("STM"."SURCHARGE_AMOUNT"=0)
   5 - access("STM"."CLIENT"=:CLIENT_NUMBER)
   6 - access("O"."CLIENT"=:CLIENT_NUMBER)
       filter("O"."STATUS"='A' OR "O"."STATUS"='U')
24 rows selected.
Elapsed: 00:00:00.86
SQL> rollback;
Rollback complete.
Elapsed: 00:00:00.07Here is the output of SQL*Plus AUTOTRACE including the TIMING information:
SQL> SELECT count(*)
2         FROM orders o,shipment_type_methods stm
3       WHERE o.status in ('A','U')
4           AND (o.parent_order_id is null
5            OR (o.order_type = 'G'
6           AND o.parent_order_id = o.original_order_number))
7           AND nvl(o.priority,'1') <> '2'
8           AND o.client = stm.client
9           AND o.shipment_class_code = stm.shipment_class_code
10           AND stm.surcharge_amount = 0
11     AND o.client = :CLIENT_NUMBER
12    GROUP BY o.client
13 /
Elapsed: 00:00:03.09
Execution Plan
Plan hash value: 559278019
| Id | Operation                      | Name                    | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT               |                         |     1 |    35 | 46764   (3)| 00:09:22 |
|   1 | SORT GROUP BY NOSORT          |                         |     1 |    35 | 46764   (3)| 00:09:22 |
|* 2 |   TABLE ACCESS BY INDEX ROWID | ORDERS                  |   175K| 3431K| 25979   (3)| 00:05:12 |
|   3 |    NESTED LOOPS                |                         | 25300 |   864K| 46764   (3)| 00:09:22 |
|* 4 |     TABLE ACCESS BY INDEX ROWID| SHIPMENT_TYPE_METHODS   |     1 |    15 |     2   (0)| 00:00
|* 5 |      INDEX RANGE SCAN          | U_SHIPMENT_TYPE_METHODS |     2 |       |     1   (0)| 00:00:01 |
|* 6 |     INDEX RANGE SCAN           | ORDERS_ORDER_DATE       |   176K|       | 2371   (8)| 00:00:29 |
Predicate Information (identified by operation id):
   2 - filter(("O"."PARENT_ORDER_ID" IS NULL OR "O"."ORDER_TYPE"='G' AND
              "O"."PARENT_ORDER_ID"=TO_NUMBER("O"."ORIGINAL_ORDER_NUMBER")) AND NVL("O"."PRIORITY",'1')<>'2
              AND "O"."SHIPMENT_CLASS_CODE"="STM"."SHIPMENT_CLASS_CODE")
   4 - filter("STM"."SURCHARGE_AMOUNT"=0)
   5 - access("STM"."CLIENT"=:CLIENT_NUMBER)
   6 - access("O"."CLIENT"=:CLIENT_NUMBER)
       filter("O"."STATUS"='A' OR "O"."STATUS"='U')
Statistics
         55 recursive calls
          0 db block gets
       7045 consistent gets
          0 physical reads
          0 redo size
        206 bytes sent via SQL*Net to client
        238 bytes received via SQL*Net from client
          2 SQL*Net roundtrips to/from client
          0 sorts (memory)
          0 sorts (disk)
          1 rows processed
SQL> disconnect
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> The TKPROF output for this statement looks like the following:
SELECT count(*)
       FROM orders o,shipment_type_methods stm
     WHERE o.status in ('A','U')
         AND (o.parent_order_id is null
          OR (o.order_type = 'G'
         AND o.parent_order_id = o.original_order_number))
         AND nvl(o.priority,'1') <> '2'
         AND o.client = stm.client
         AND o.shipment_class_code = stm.shipment_class_code
         AND stm.surcharge_amount = 0
   AND o.client = :CLIENT_NUMBER
GROUP BY o.client
call     count       cpu    elapsed       disk      query    current        rows
Parse        1      0.01       0.00          0          0          0           0
Execute      1      0.04       0.04          0          0          0           0
Fetch        2      2.96       2.91          0       7039          0           1
total        4      3.01       2.95          0       7039          0           1
Misses in library cache during parse: 1
Misses in library cache during execute: 1
Optimizer mode: ALL_ROWS
Parsing user id: 95
Rows     Row Source Operation
      1 SORT GROUP BY NOSORT (cr=7039 pr=0 pw=0 time=2913701 us)
     91   TABLE ACCESS BY INDEX ROWID ORDERS (cr=7039 pr=0 pw=0 time=261997906 us)
     93    NESTED LOOPS (cr=6976 pr=0 pw=0 time=20740 us)
      1     TABLE ACCESS BY INDEX ROWID SHIPMENT_TYPE_METHODS (cr=2 pr=0 pw=0 time=208 us)
      3      INDEX RANGE SCAN U_SHIPMENT_TYPE_METHODS (cr=1 pr=0 pw=0 time=88 us)(object id 81957)
     91     INDEX RANGE SCAN ORDERS_ORDER_DATE (cr=6974 pr=0 pw=0 time=70 us)(object id 81547)
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                     2        0.02          0.02
********************************************************************************The DBMS_XPLAN.DISPLAY_CURSOR output:
SQL> variable CLIENT_NUMBER varchar2(20)
SQL> exec :CLIENT_NUMBER := '14'
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.06
SQL> SELECT /*+ gather_plan_statistics */ count(*)
2         FROM orders o,shipment_type_methods stm
3       WHERE o.status in ('A','U')
4           AND (o.parent_order_id is null
5            OR (o.order_type = 'G'
6           AND o.parent_order_id = o.original_order_number))
7           AND nvl(o.priority,'1') <> '2'
8           AND o.client = stm.client
9           AND o.shipment_class_code = stm.shipment_class_code
10           AND stm.surcharge_amount = 0
11     AND o.client = :CLIENT_NUMBER
12    GROUP BY o.client
13 /
COUNT(*)
        91
Elapsed: 00:00:02.85
SQL> set termout on
SQL> select * from table(dbms_xplan.display_cursor(null, null, 'ALLSTATS LAST'));
PLAN_TABLE_OUTPUT
SQL_ID 4nfj368y8w6a3, child number 0
SELECT /*+ gather_plan_statistics */ count(*)        FROM orders o,shipment_type_methods stm      WHERE
o.status in ('A','U')          AND (o.parent_order_id is null           OR (o.order_type = 'G'
AND o.parent_order_id = o.original_order_number))          AND nvl(o.priority,'1') <> '2'          AND
o.client = stm.client          AND o.shipment_class_code = stm.shipment_class_code          AND
stm.surcharge_amount = 0    AND o.client = :CLIENT_NUMBER   GROUP BY o.client
Plan hash value: 559278019
| Id | Operation                      | Name                    | Starts | E-Rows | A-Rows |   A-Time   | Buffers |
|   1 | SORT GROUP BY NOSORT          |                         |      1 |      1 |      1 |00:00:02.63 |    7039 |
|* 2 |   TABLE ACCESS BY INDEX ROWID | ORDERS                  |      1 |    175K|     91 |00:03:56.87 |    7039 |
|   3 |    NESTED LOOPS                |                         |      1 | 25300 |     93 |00:00:00.02 |    6976 |
|* 4 |     TABLE ACCESS BY INDEX ROWID| SHIPMENT_TYPE_METHODS   |      1 |      1 |      1 |00:00:00.01 |       2 |
|* 5 |      INDEX RANGE SCAN          | U_SHIPMENT_TYPE_METHODS |      1 |      2 |      3 |00:00:00.01 |       1 |
|* 6 |     INDEX RANGE SCAN           | ORDERS_ORDER_DATE       |      1 |    176K|     91 |00:00:00.01 |    6974 |
Predicate Information (identified by operation id):
   2 - filter((("O"."PARENT_ORDER_ID" IS NULL OR ("O"."ORDER_TYPE"='G' AND
              "O"."PARENT_ORDER_ID"=TO_NUMBER("O"."ORIGINAL_ORDER_NUMBER"))) AND NVL("O"."PRIORITY",'1')<>'
              "O"."SHIPMENT_CLASS_CODE"="STM"."SHIPMENT_CLASS_CODE"))
   4 - filter("STM"."SURCHARGE_AMOUNT"=0)
   5 - access("STM"."CLIENT"=:CLIENT_NUMBER)
   6 - access("O"."CLIENT"=:CLIENT_NUMBER)
       filter(("O"."STATUS"='A' OR "O"."STATUS"='U'))
32 rows selected.
Elapsed: 00:00:01.30
SQL> I'm looking forward for suggestions how to improve the performance of this statement.
Thanks
Sandy

Please find explain plan for No hint
SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
Plan hash value: 559278019
| Id | Operation                      | Name                    | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT               |                         |     1 |    35 | 46764   (3)| 00:09:22 |
|   1 | SORT GROUP BY NOSORT          |                         |     1 |    35 | 46764   (3)| 00:09:22 |
|* 2 |   TABLE ACCESS BY INDEX ROWID | ORDERS                  |   175K| 3431K| 25979   (3)| 00:05:12 |
|   3 |    NESTED LOOPS                |                         | 25300 |   864K| 46764   (3)| 00:09:22 |
|* 4 |     TABLE ACCESS BY INDEX ROWID| SHIPMENT_TYPE_METHODS   |     1 |    15 |     2   (0)| 00:00
|* 5 |      INDEX RANGE SCAN          | U_SHIPMENT_TYPE_METHODS |     2 |       |     1   (0)| 00:00:01 |
|* 6 |     INDEX RANGE SCAN           | ORDERS_ORDER_DATE       |   176K|       | 2371   (8)| 00:00:29 |
Predicate Information (identified by operation id):
   2 - filter(("O"."PARENT_ORDER_ID" IS NULL OR "O"."ORDER_TYPE"='G' AND
              "O"."PARENT_ORDER_ID"=TO_NUMBER("O"."ORIGINAL_ORDER_NUMBER")) AND NVL("O"."PRIORITY",'1')<>'2
              AND "O"."SHIPMENT_CLASS_CODE"="STM"."SHIPMENT_CLASS_CODE")
   4 - filter("STM"."SURCHARGE_AMOUNT"=0)
   5 - access("STM"."CLIENT"=:CLIENT_NUMBER)
   6 - access("O"."CLIENT"=:CLIENT_NUMBER)
       filter("O"."STATUS"='A' OR "O"."STATUS"='U')
24 rows selected.
Elapsed: 00:00:00.86Explain Plan for Parallel Hint
SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
Plan hash value: 559278019
| Id | Operation                      | Name                    | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT               |                         |     1 |    35 | 46764   (3)| 00:09:22 |
|   1 | SORT GROUP BY NOSORT          |                         |     1 |    35 | 46764   (3)| 00:09:22 |
|* 2 |   TABLE ACCESS BY INDEX ROWID | ORDERS                  |   175K| 3431K| 25979   (3)| 00:05:12 |
|   3 |    NESTED LOOPS                |                         | 25300 |   864K| 46764   (3)| 00:09:22 |
|* 4 |     TABLE ACCESS BY INDEX ROWID| SHIPMENT_TYPE_METHODS   |     1 |    15 |     2   (0)| 00:00
|* 5 |      INDEX RANGE SCAN          | U_SHIPMENT_TYPE_METHODS |     2 |       |     1   (0)| 00:00:01 |
|* 6 |     INDEX RANGE SCAN           | ORDERS_ORDER_DATE       |   176K|       | 2371   (8)| 00:00:29 |
Predicate Information (identified by operation id):
   2 - filter(("O"."PARENT_ORDER_ID" IS NULL OR "O"."ORDER_TYPE"='G' AND
              "O"."PARENT_ORDER_ID"=TO_NUMBER("O"."ORIGINAL_ORDER_NUMBER")) AND NVL("O"."PRIORITY",'1')<>'2
              AND "O"."SHIPMENT_CLASS_CODE"="STM"."SHIPMENT_CLASS_CODE")
   4 - filter("STM"."SURCHARGE_AMOUNT"=0)
   5 - access("STM"."CLIENT"='14')
   6 - access("O"."CLIENT"='14')
       filter("O"."STATUS"='A' OR "O"."STATUS"='U')
24 rows selected.
Elapsed: 00:00:08.92Explain Plan for USE_Hash hint
SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
Plan hash value: 1465232248
| Id | Operation                     | Name                    | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT              |                         |     1 |    35 | 46786   (3)| 00:09:22 |
|   1 | SORT GROUP BY NOSORT         |                         |     1 |    35 | 46786   (3)| 00:09:22 |
|* 2 |   HASH JOIN                   |                         | 25300 |   864K| 46786   (3)| 00:09:22 |
|* 3 |    TABLE ACCESS BY INDEX ROWID| SHIPMENT_TYPE_METHODS   |     1 |    15 |     2   (0)| 00:00:0
|* 4 |     INDEX RANGE SCAN          | U_SHIPMENT_TYPE_METHODS |     2 |       |     1   (0)| 00:00:01 |
|* 5 |    TABLE ACCESS BY INDEX ROWID| ORDERS                  |   175K| 3431K| 46763   (3)| 00:09:22 |
|* 6 |     INDEX RANGE SCAN          | ORDERS_ORDER_DATE       |   176K|       | 4268   (8)| 00:00:52 |
Predicate Information (identified by operation id):
   2 - access("O"."CLIENT"="STM"."CLIENT" AND "O"."SHIPMENT_CLASS_CODE"="STM"."SHIPMENT_CLASS_COD
              E")
   3 - filter("STM"."SURCHARGE_AMOUNT"=0)
   4 - access("STM"."CLIENT"='14')
   5 - filter(("O"."PARENT_ORDER_ID" IS NULL OR "O"."ORDER_TYPE"='G' AND
              "O"."PARENT_ORDER_ID"=TO_NUMBER("O"."ORIGINAL_ORDER_NUMBER")) AND NVL("O"."PRIORITY",'1')<>'2
   6 - access("O"."CLIENT"='14')
       filter("O"."STATUS"='A' OR "O"."STATUS"='U')
25 rows selected.
Elapsed: 00:00:01.09
SQL> Thanks
Sandy

Does win8/8.1/10 kill long-running programs automatically as stated in specs? reasons why?

does win8/8.1/10 kill/end-task long-running programs automatically as stated in specs? how specifically does it detect a locked-up process?
has this been put into windows 7 at any time to make it similar to windows 8?
Please supply accurate answers. thank you.
My understanding the reason for this change was to handle locked-up programs.
I do have a number of long-running processes. some examples of mine and scenarios for other users:
simulations on a Workstation or HPC Server
doing a directory tree walk on a hard disk with >=1TB of data
reference articles I have found on the subject:
windows 7
http://windows.microsoft.com/en-us/windows/exit-program-not-responding#1TC=windows-7
windows 8
From some of what I understand, you can also get the "Program Not Responding" or similarly titled dialog box when:
bug in the source code of the program in question. for instance, while(1){} such as forever loops (win7)
similar program bug when declaring a function one way but defining it a different way and then calling it (mismatch in function signature) (win7)
similar to above with DLLs in using MSVCRT*.DLL or other
(?) can't remember for sure on this, but I think some badly formed calls or it was invalid values or data type mismatch to Win32 API can do this from buggy code. (win7)
for (x=0; x < 16777216; x++) {your code here...} in other words, large values for loop termination (win7)
this is a repost of http://answers.microsoft.com/en-us/windows/forum/windows_8-performance/does-win88110-kill-long-running-programs/d35c3c9e-c6f4-4bbf-846a-2041bf2167a0?tm=1427518759476
here due to a request to do so.

does win8/8.1/10 kill/end-task long-running programs automatically as stated in specs? how specifically does it detect a locked-up process?
has this been put into windows 7 at any time to make it similar to windows 8?
Please supply accurate answers. thank you.
My understanding the reason for this change was to handle locked-up programs.
Hi Jim,
First, I have to admit that I'm not fully understanding the question, If a program is not responding, it means the program is interacting more slowly than usual with Windows, typically could be a confliction of software or hardware resources between
two programs, lack of system resources, or a bug in the software or drivers. In that case, we can choose to wait or end the program. This design is similiar in Windows 7, Windows 8 and other OS.
For deeper analysis, system determines whether the system considers that a specified application is not responding using a "IsHungAppWindow function",
https://msdn.microsoft.com/en-us/library/ms633526.aspx
And this link also give some explanation: Preventing Hangs in Windows Applicationshttps://msdn.microsoft.com/en-us/library/windows/desktop/dd744765%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396
While I'm not a developer, to better understand this, I recommend you contact members in the MSDN Forum:
https://social.msdn.microsoft.com/Forums/en-US/home
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

OBIEE: Incorrect SQL - with count function uses ORDER BY instead GROUP BY

I made a basic report that is a client count; I want to know how many clients the company have.
But, when I run this report, OBIEE generates a ORDER BY sentence, instead a GROUP BY. Remember that I'm using count function, that is a agregation.
The SQL generated was:
select 'N0' as c1,
count(*) as c2
from
(select distinct T1416.CLIENT_INTER_KEY as c1
from
(select *
from prd.D_SERVICE where SOURCE_SYS in ('ARBOR','PPB') and DW_SERV_ST_ID in (100000003,100000009)) T1836,
(select *
from prd.D_CLIENT) T1416,
(select *
from prd.D_CUSTOMER_ACCOUNT where SOURCE_SYS In ('ARBOR','PPB')) T1515
where ( T1416.DW_CLIENT_ID = T1515.DW_CLIENT_ID and T1515.DW_CUST_ACCT_ID = T1836.DW_CUST_ACCT_ID and T1836.MSISDN = '917330340' )
) D1
order by c1
The error that I receive is:
"Query Status: Query Failed: [nQSError: 16001] ODBC error state: S1000 code: -1005018 message: [Sybase][ODBC Driver][Adaptive Server Anywhere]Illegal ORDER BY item Order Item: 'N0',
-- (opt_OrderBy.cxx 429) .
[nQSError: 16011] ODBC error occurred while executing SQLExtendedFetch to retrieve the results of a SQL statement."
If I substitute ORDER BY with GROUP BY and test it in Sybase, Ithe query runs without any problem.
select 'N0' as c1,
count(*) as c2
from
(select distinct T1416.CLIENT_INTER_KEY as c1
from
(select *
from prd.D_SERVICE where SOURCE_SYS in ('ARBOR','PPB') and DW_SERV_ST_ID in (100000003,100000009)) T1836,
(select *
from prd.D_CLIENT) T1416,
(select *
from prd.D_CUSTOMER_ACCOUNT where SOURCE_SYS In ('ARBOR','PPB')) T1515
where ( T1416.DW_CLIENT_ID = T1515.DW_CLIENT_ID and T1515.DW_CUST_ACCT_ID = T1836.DW_CUST_ACCT_ID and T1836.MSISDN = '917330340' )
) D1
group by c1
Do you know why OBIEE generates this SQL??? Why uses, with a aggregation function, a ORDER BY and not a GROUP BY? How can I resolve this problem???
Regards,
Susana Figueiredo

Verify your repository design and make sure that you have defined count aggregate on fact column. You would also need to define the content level of each dimension in fact table.

Sql count function in order by clause

Post Author: krypton
CA Forum: Data Connectivity and SQL
Hi Guys
Can i ask a quick question. I am trying to retrieve data remotely from a SQL Server via crystal reports.
Within the Database Expert I have entered a SQL query to retrive the number of (call center) support calls raised by our customers:-
Select `Primary_Company`, COUNT(`Calls`)From `SPRT_Issue` GROUP BY `Primary_Company`ORDER BY COUNT(`Calls`) desc
The customer's column is called 'Primary Company' and the calls they raise are in the 'Calls' column. the above is a normal sql query.
However Crystal fails to run the query and generates an error message :-
Failed to open a rowset. Details: 420: Driver] Expected lexical element not found: <identifier>
I dont understand why it wont run. In the ORDER BY clause if i replace field 'Calls' by the field 'Primary Company' then it works.
I think the problem is that it wont accept the count function in the order by clause. which is what i want it to do i.e display the calls in descending order by each customer.
Could someone tell me if there is a way around it.
Thanks
Krypton

Post Author: krypton
CA Forum: Data Connectivity and SQL
Thanks Lynn
I tried your suggestion. But there is one probelm.
When i sort the data in descending order using the count(calls) field, the data is returned but the customer's name appears multiple times along with their calls raised.
E.g, if customer Mark raised multiple calls i.e. 2, 5, and 10 calls, then the report will show
Mark 2
Mark 5
Mark 10
But is there a way to aggregate all the calls for mark and show them only once:
such as Mark 17
Thanks

How to delay a long running tasks start until display is updated?

I am having a problem in that a progress bar I want to use to show progress of a long running background process is not showing up for a long time (up to 10 seconds) after the long running process is started. This is in an AIR application and the background process is an external native process, so once it is launched the UI thread is free to run, but the launch of the process can take time.
Below is the current state of the relevant code.
In addition to the current format I have also tried using the CREATION_COMPLETE, EXIT_FRAME and RENDER events with the same results.
If I up the value in setTimeout to 500ms the progress bar displays quickly, but I would prefer to not delay the launch of the background process for no reason.
If I comment out the loadPorject call the progress bar is displayed instantly.
Any help is appreciated.
private function continueLoad(evt:Event):void
     // We are about to start some potentially long running process
     CursorManager.setBusyCursor();
     curPopup = new SyncProgress();
     curPopup.addEventListener(Event.ENTER_FRAME, popupLoadedHandler);
     PopUpManager.addPopUp(curPopup, parentView, true);
     PopUpManager.centerPopUp(curPopup);
     curPopup.stage.invalidate();
private function popupLoadedHandler(event:Event):void
     curPopup.removeEventListener(Event.ENTER_FRAME, popupLoadedHandler);
     setTimeout(function():void{syncManager.loadProject(mainViewModel.selectedUserItem.id,proj ectFile.nativePath,overwrite);},0);

DBMS_SCHEDULER is very powerful and can be a bit unwieldy. I tend to use DBMS_SCHEDULER for jobs which are purely 'in the database' i.e. not specifically APEX-related - in addition, I find it's better for stuff that needs to be run regularly without human intervention (some sort of refresh process, daily cleanup etc).
If you are intending to run this process from APEX as a pseudo "on demand" process (i.e. generated by a user request) and have quite simple requirements (e.g. there's no dependencies on other jobs), it might be worth checking out the apex scheduling API - namely the package APEX_PLSQL_JOB:
http://download.oracle.com/docs/cd/E14373_01/apirefs.32/e13369/apex_plsql_job.htm#BGBCJIJI
It generates a unique job number which you can use to reference its progress - plus it's much simpler to use.
p.s. using DBMS_SCHEDULER, yes the job name has to be unique but you can generate one by either using a sequence or data not likely to be repeated, like the current timestamp.

Distinct Count Function-how to use properly

Hello,
I am new to using forums & have only been using Crystal since May of 2009, so i hope i do this correctly & provide the appropriate information. i've looked for this answer in what's been posted but cannot find it. Some things i've read I don't really understand. I only know how to use the functions that are in the software, i don't know how to write them myself (i think that's when people have referred to SQL code or basic syntax)
I have CR Professional, version 11.0.0.1282 (Crystal Reports XI).
I work at a county health dept and we have a annual medicaid cost report, I am linking Crystal to our EMR billing module. i have my report sorted by insurance, ie medicaid, bcbs, abw, hpm etc. and within each ins group i have the clients ID, DOS (date of service), procedure code, charge amt, ins pmt & patient pmt. i have totaled the charges & pmts for each group-works fine. i even have been able to create the formula to adj out the duplicate entries in the billing module (a service was entered wrong then adjusted out then re-entered correctly-without my formula crystal was pulling both these records and adding them to total charges.)
Where my problem lies and what my question is: I need to count encounters, an encounter is the visit, but each visit could have 2 or more procedure codes. So this results in multiple lines on my report for one visit, which i want for the charges to add correctly, but it makes my visit count to high. So I read about the distinct count function, of which there are three listed & i'm having a hard time understanding the differences. What i tried is: a distinct count of the acct ID-so the same acct ID's are only counted the one time. But some clients see us more than once per year, meaning the acct ID is the same but the DOS is different. For this client that would be 2 visits. But crystal is counting this as 1.
Saying what i want to do is this: Count as 1 when the acct ID and DOS are the same. I've tried using the different distinct counts but when i check my formula it always has errors. So I'm sure my lack of knowledge is what's holding me up-i fully believe crystal can do this.
Any help would be greatly appreciated.

I create a dummy table, set up acc_id and DOS and Charge.
Created a running total
Summarized acc_id
Type of summary Count
Evaluated using a formula
<> previous ()
and reset on ACC_ID
My groups were sorted by acc_id and date
where there were multiple visits on the same DOS my count was 0
where the dos changed it would count accordingly.
You may need to use two Running totals to get the complete picture.

Long running table partitioning job

Dear HANA grus,
I've just finished table partitioning jobs for CDPOS(change document item) with 4 partitions by hash with 3 columns.
Total data volumn is around 340GB and the table size was 32GB !!!!!
(migration job was done without disabling CD, so currently deleting data on the table with RSCDOK99)
Before partitioning, the data volumn of the table was around 32GB.
After partitioning, the size has changed to 25GB.
It took around One and half hour with exclusive lock as mentioned in the HANA adminitration guide.
(It is QA DB, so less complaints)
I thought that I might not can do this in the production DB.
Does anyone hava any idea for accelerating this task?? (This is the fastest DBMS HANA!!!!)
Or Do you have any plan for online table partitioning functionality??(To HANA Development team)
Any comments would be appreciate.
Cheers,
- Jason

Jason,
looks like we're cross talking here...
What was your rationale to partition the table in the first place?
       => To reduce deleting time of CDPOS            (As I mentioned it was almost 10% quantity of whole Data volume, So I would like to save deleting time of the table from any pros of partitioning table like partitioning pruning)
Ok, I see where you're coming from, but did you ever try out if your idea would actually work?
As deletion of data is heavily related with locating the records to be deleted, creating an index would have probably be the better choice.
Thinking about it... you want to get rid of 10% of your data and in order to speed the overall process up, you decide to move 100% of the data into sets of 25% of the data - equally holding their 25% share of the 10% records to be deleted.
The deletion then should run along these 4 sets of 25% of data.
It's surely me, but where is the speedup potential here?
How many unloads happened during the re-partitioning?
       => It was fully uploaded in the memory before partitioning the table by myself.(from HANA studio)
I was actually asking about unloads _during_ the re-partitioning process. Check M_CS_UNLOADS for the time frame in question.
How do the now longer running SQL statements look like?
       => As i mentioned selecting/deleting increased almost twice.
That's not what I asked.
Post the SQL statement text that was taking longer.
What are the three columns you picked for partitioning?
       => mandant, objectclas, tabname(QA has 2 clients and each of them have nearly same rows of the table)
Why those? Because these are the primary key?
I wouldn't be surprised if the SQL statements only refer to e.g. MANDT and TABNAME in the WHERE clause.
In that case the partition pruning cannot work and all partitions have to be searched.
How did you come up with 4 partitions? Why not 13, 72 or 213?
       => I thought each partitions' size would be 8GB(32GB/4) if they are divided into same size(just simple thought), and 8GB size is almost same size like other largest top20 tables in the HANA DB.
Alright, so basically that was arbitrary.
For the last comment of your reply, most people would do partition for their existing large tables to get any benefit of partitioning(just like me). I think your comment can be applied for the newly inserting data.
Well, not sure what "most people" would do.
HASH partitioning a large existing table certainly is not an activity that is just triggered off in a production system. Adding partitions to a range partitions table however happens all the time.
- Lars

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