Weird behavior of SQL query

Hi friends ,
Today I have faced the one problem . I have the simple sql query :
select sum(real_dt) x from final group by alt_tip "Final" is a view which is bound with other views .Those views are bound with other views and tables also . Every table which take part in this query are static. When I run this query I see certain result , but when I need to replay query (for example 10 seconds later) I see different result. And again different result and again dif. result.There are no jobs ,and I am the only user who has connected to this database.
What is a possible reason ???
Edited by: Radrigez on 26.09.2011 4:50

There is NO reason for the two queries to return any different results.
select sum(x) from (
select sum(real_dt) x,alt_tip from final group by alt_tip)
select sum(x) from (
select sum(real_dt) x from final group by alt_tip)The first query fetches ALT_TIP values in the subquery and then discards them.
The second query does not fetch them.
The GROUP BY ALT_TIP is completely unnecessary if you really want only a SUM(X) --- because you are requesting for a single row that is the sum of all REAL_DT values from FINAL.
What I do not understand is the listing of
24804560.57 the first time
24823488.57 2..
24823488.57 3..
24823488.57 4..
24823488.57 5..
24823488.57 6..Are you implying that you run the same query more than once and the result in the second execution is different from the result in the first execution ? If data isn't changing, have you evaluated if there is any FUNCTION that is dependent on external references -- e.g. a FUNCTION that is dependent on SYSDATE (or a truncation of SYSDATE) or is dependent on some other attributes (TERMINAL_ID, PROCESS_ID, SESSION_ID) etc ? (The question about VPD also relates to such possibilities).
Hemant K Chitale

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Message was edited by:
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portType="ns1:SINAUT_Aviso_SRV_Avisos"
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<copy>
<from expression="'12345'"/>
<to variable="Invoke_3_actualizar_InputVariable"
part="payload" query="/payload/aviso/referenciaPlyAviso"/>
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outputVariable="Invoke_3_actualizar_OutputVariable_1"
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portType="ns1:SINAUT_Aviso_SRV_Avisos"
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<emulate duration="PT0S">
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<payload xmlns=""/>
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<emulate duration="PT0S">
<message>
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</wireActions>
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<emulate duration="PT0S">
<message>
<part partName="payload">
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4- if I change the second operation with the first one(buscar), it doesn't throws any exception.
5- If this is a limitation , how can I test a composite that involves n operations of the same service?
Kind regards and thanks for all of your support

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I have acquired a report from our regional headquarters, and have been asked locally to add a prompt to one that already exists in the report.
The report currently uses an SQL query, which in turn uses a single prompt to limit the data reported. However, the name of the parameter in the Field Explorer in Parameter Fields is "Facility", but, when I use the Database Expert and select edit for the query (under Selected Tables, right-click on "Command" under the database and click on "Edit Command"--is Command a default name?), under the Parameter List, the name of the parameter there is "Facility1" (?). The SQL references the parameter "Facility1" (...like '{?Facility1}'), but I cannot find any link/interface between the Parameter List "Facility1" to the Parameter Field "Facility", and I cannot find any other references to "Facility1" anywhere else in the report (sorry, I'm very new at CR, and am not sure how to do a global search of a desired text string in the reports).
I have asked the author for an explanation, but he would only offer, after indicating that he ... was not obligated to help me in any way .., the following bone: "I just simply rename the parameter in Command from Facility1 to Facility which bears the same name as the parameter interface and it just works fine." This only served to confuse me more, since the parameter name currently in Command is "Facility1" (and the report works the way it is)--when I change the name of the parameter in Parameter List (and the parameter name in the SQL query) to "Facility" (to match the Parameter Field's "Facility"?) ... the parameter in the Parameter Fields ... disappears?
Can someone please instruct me how to, in whatever steps are necessary, add a parameter to the Parameter Fields and edit the SQL code to use that parameter? or point me to some documentation that will help me with this?
Thanks in advance for any help offered.
wleonetti

Hi Eric,
Try expressing the source as this:
begin
return functionname(to_date('30-sep-2010', 'dd-mon-yyyy'));
end;That works fine for me, and if I take out the begin-end and the trailing semicolon from the return statement I get the same behavior as you.
It does mention in the help for the source (only during the wizard though) that this source type has to be expressed that way, but I agree it would be helpful if the tool would validate for this format when 'Function Returning SQL Query' is used or give some sort of indication of the trouble. Anyway, this should get you going again.
Hope this helps,
John
If you find this information useful, please remember to mark the post "helpful" or "correct" so that others may benefit as well.

Using 'Function Returning SQL Query' with Flash charts

I have created a pl/sql function that returns a SQL query as a varchar2 of this form:
select null link
<x value> value
<Series1 y value> Series 1 Label
<Series2 y value> Series 2 Label
<Series3 y value> Series 3 Label
from tablea a
join tableb b
on a.col = b.col
order by <x value>
If I now call the function from a Flash Chart Series SQL box with the Query Source Type set to 'Function Returning SQL Query' like this:
return functionname(to_date('30-sep-2010', 'dd-mon-yyyy'))
it parses correctly and the page is saved; however, when I run the page I don't get any output - nor any error messages or other indication of a problem.
Now, if I call the function in a SQL client, capture the SQL query output using dbms_output and paste that into the Flash Chart Series SQL box - changing the Query Source Type to SQL Query - and save the page it works fine when I run it and returns a multi-series flash chart.
Can anyone suggest either;
1. What have I might have missed or done wrong?
2. Any way to usefully diagnose the problem...
I have tried using the Apex debugger - which is very nice, by the way - but it doesn't provide any info on what my problem might be. I even tried writing my own debug messages from my function using the apex_debug_message package - got nothing...
Thanks,
Eric

Hi Eric,
Try expressing the source as this:
begin
return functionname(to_date('30-sep-2010', 'dd-mon-yyyy'));
end;That works fine for me, and if I take out the begin-end and the trailing semicolon from the return statement I get the same behavior as you.
It does mention in the help for the source (only during the wizard though) that this source type has to be expressed that way, but I agree it would be helpful if the tool would validate for this format when 'Function Returning SQL Query' is used or give some sort of indication of the trouble. Anyway, this should get you going again.
Hope this helps,
John
If you find this information useful, please remember to mark the post "helpful" or "correct" so that others may benefit as well.

Exists (SQL query returns at least one row) condition with MAX on 10.2.0.4

I just wanted to note this on the forum..
I'm using Apex 3.0.1.00.08
My DEV environment has just been upgraded from 10g version 10.2.0.2.0 to 10.2.0.4.0.
I created the following process to select some values into some items on my Form page.
select MAX(STAT_YEAR+1)
      , pcd.pct_id
      , pcd.stat_type_id
      , pcd.stat_period_type_id
      , pcd.measurement_id
into    :P11_STAT_YEAR
      , :P11_PCT_ID
      , :P11_STAT_TYPE_ID
      , :P11_STAT_PERIOD_TYPE_ID
      , :P11_MEASUREMENT_ID
from plant_commodity_data pcd
    , stat_type stt
where pcd.STAT_TYPE_ID = stt.STAT_TYPE_ID
and pcd.pct_id = :P0_PCT_ID
and stt.stat_type = 'PRD'
group by pcd.pct_id
      , pcd.stat_type_id
      , pcd.stat_period_type_id
      , pcd.measurement_id;The process should run conditionally if there was at least one row to select...
So I copied the SQL into the Process condition, removed the "into" section and set the condition type to be "Exists (SQL query retruns at least one row) ...
select MAX(STAT_YEAR+1)
      , pcd.pct_id
      , pcd.stat_type_id
      , pcd.stat_period_type_id
      , pcd.measurement_id
from plant_commodity_data pcd
    , stat_type stt
where pcd.STAT_TYPE_ID = stt.STAT_TYPE_ID
and pcd.pct_id = :P0_PCT_ID
and stt.stat_type = 'PRD'
group by pcd.pct_id
      , pcd.stat_type_id
      , pcd.stat_period_type_id
      , pcd.measurement_id;This worked perfectly until the DEV environment was upgraded from 10g version 10.2.0.2.0 to 10.2.0.4.0.
The condition would fire even if there were no rows returning.
I pasted the condition code into SQL Developer connected to the DEV (10.2.0.4.0) environment and it returned no rows.
To solve the problem, I removed the MAX.
You can test this using this code if you have access to the two versions... select MAX(1)
      , sysdate
      , 'Gus'
from dual
where 1 = 2
group by sysdate, 2Now I know the MAX isn't required in the condition as I'm just trying to find out if any rows exist, but it was there as I copied the code in... I was just wondering why this happened between 10.2.0.2.0 and 10.2.0.4.0?
Gus..

Hi Gus,
try to execute
select count(*) from dual where exists (select MAX(1)
      , sysdate
      , 'Gus'
from dual
where 1 = 2
group by sysdate, 2)in SQL Developer. The above statement is generated by APEX for an "Exists (SQL query retruns at least one row)". Can't test it, because I don't have a 10.2.0.4.0 at hand.
Does SQL Developer now show the same behavior?
Patrick
My APEX Blog: http://www.inside-oracle-apex.com
The APEX Builder Plugin: http://builderplugin.oracleapex.info/
The ApexLib Framework: http://apexlib.sourceforge.net/

Sql query to fetch data based on date conditons

Hi All,
We have to schedule a script that runs at 1:00 AM from Monday to Friday.
The script will run a sql query ,that will fetch the data from sql database 2008 based on the below conditions.
Case 1: If date = current Date then retrieve the data of the previous Date.
Case 2: If date = Monday then retrieve the entries of Friday ,Saturday and Sunday.
Please help us on how we can achieve this.
Thanks

Hi,
Are you asking about Patrick's
solution?
If so I highly recommend NOT to use this solution. PLease read LMU92's
and
Visakh16's responses.
Why not to use it?
1. This solution is not deterministic!
A deterministic algorithm is an algorithm which, given a particular input, will always produce the same output. This solution give different values for different setting! It is depending for example on "SET LANGUAGE" value
As mentioned above if you try to use any other languge then English then this query will not work since you will never get the value "Sunday"
2. Moreover! Even if you are using "SET LANGUAGE 'English'" then this
solution depend on "SET DATEFIRST" and only take into consideration that the value can be 1 or 7, using any other value you will get that @weekendDateMod is null!
What can you use?
let's test some value first to get the solution yourself. We know that we don't care about "SET LANGUAGE" since I will not use any language dependency but we need to examine "SET DATEFIRST". Try to change the value from 1 to 7 and check
the value of this query
SET DATEFIRST 1 -- Change this value from 1 to 7!
DECLARE @Sunday DATE = '2014-08-03' -- This is Sunday
DECLARE @Munday DATE = '2014-08-04' -- This is Munday
SELECT DATEPART(DW,@Sunday),DATEPART(DW,@Munday), @@DATEFIRST
Can you see the behavior ?
The results are hidden here (select the text and you will see them)
DATEFIRST___Sunday_______Monday
1___________7___________1
2___________6___________7
3___________5___________6
4___________4___________5
5___________3___________4
6___________2___________3
7___________1___________2
assuming you did the exercise above yourself, then you can now think now what is the filter that you need...
You can use a filter on those two parameters together using "where DATEPART... and @@DATEFIRST...) or using one combine check. Can you think how?
Notice that this value is always 2 on Monday! Regarding our setting
(DATEPART(DW,@CurrentDate) + @@DATEFIRST) % 7
Please Don't Go Down Before YOu Understand!
Now we can go to the solution
* I really hope that you read all and did the small exercise yourself! You can not become a developer by copy answers, and this is the reason that from the start I only gave you tha way and not the final query!
DECLARE @CurrentDate DATE = '2007-08-20' -- This is only for testing since you should use the function GETDATE() instead
DECLARE @MinDateToFilter DATE
SET @MinDateToFilter = CASE
WHEN ((DATEPART(DW,@CurrentDate) + @@DATEFIRST) % 7) = 2 THEN DATEADD(DAY,-4,@CurrentDate)
ELSE DATEADD(DAY,-1,@CurrentDate)
END
SELECT *
FROM sales.salesOrderHeader
WHERE orderDate > @MinDateToFilter
I hope this was useful :-)
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