Stopping query in jdbc

We gave basically a data mining application that can do unions over 12 dozen tables. If figures out what joins to do based on the columns being returned and the columns being searched on.
So the user uses the UI in java to specify what data they want and causes the query to be started using jdbc. After 10 minutes of waiting, they still don't have their results and want to cancel the query. The thread is still in jdbc and won't return until the there is data to return.
So how does the java application stop the query? You don't want to let it run another 12 hours, especially if the user is going to do start and abandon a dozen queries.

chk this
http://onjava.com/lpt/a/4938
also this
http://download.oracle.com/javase/1.4.2/docs/api/java/sql/Statement.html#cancel%28%29

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Reg: How to Stop Polling of JDBC Adapter without Scheduling the adapter

Dear Gurus,
Here I am having one requirement. My clients wants to send data from JDBC adapter (ORcale System table) to R3 system via RFC.
His Requirement::
1. He is not telling the time of data flow from Oracle server so that based on that we can schedule the adapter in the Communication Channel monitoring (Availablitiy Time Planning) or Else we can Schedule by deciding the setting of the polling interval time.
2. He is telling that When ever he waants to send the data he will place one dummy file in the File Adapter FTP location so that it will became an Indication for u to poll the jdbc adapter and to transfer the data to R3.
3. Untill he keeps the file or gives indication he doesn;t want to communicate with Oracle server due to some security and it s a most important data base he doesn't want to disturb that Oracle Server as so many business are running on that.....
We Proposed::
1. Atleast you need to tell the scheduling time or poll interval time so that we can schedule our adapter.
but he s not accepting for this
2. Atleast U need to give access for Data base to enter one more extra field like STATUS CODE so that we will add one number and we keep on Update in the Update table and based on that Update table statement it will poll.
but he s not even accepting for this
3. Finally we prposed that to create another table in the Oracle SYstem as Dulplicate Table which is similar to Standard Orginal table when ever he wants to pick the data please keep that data in this Duplicate TABle so that JDBC adapter will pick the data from thsi TABLE instead of picking the data from that standard table so that it will not effect any standard table data in the table.
but he s not even accepting for this
We have done some R & D:::
1. WE approached even through BPM and via switch conditions is one scenario
   FILE RECEIVE >SWITCH CONDITION> RECEIVE AND SEND or else EXIT
2. Using correlation in anotehr scenario means correlating File adapter and JDBC and based on one dynamica value it will goes to SEND STEP ( RECE IVE --> RECEIVE --> SEND STEPS )
Even though we know this...concept that...we jsut tried::
In BPM we can control the flow in XI 3.0 but we cannot Stop the Polling of JDBC adapter at backend because one the data comes from FILE adapter it will keep on HOLD untill it receives the JDBC from Oracle then based on the condition or Correlation it will goes futher SEND step means after that file adapter is picking file or not ...what ever it may be JDBC will polls at backend and brings that data to BPM"
Hence sugest me How to Stop Polling of JDBC Adapter without Scheduling the adapter or else using STATUS CODE Update statements in JDBC Tables
Regards:
Amar Srinivas Eli

Hi! All,
Finally I decided to do the scenario in two steps:
1: FILE REQ --> JDBC REQ -->JDBC RES --> FILE RECV
2: FILE RECV --> RFC
But I am getting issue while doing first scenario
Desgn :
I have created 2 Synchronous interfaces :
1) FILE 2 JDBC REQ
In this a) out put message is FILE Req
          b) Input msage:; FILE RES
2} JDBC2FILE RECV
        a) Output mesage;; JDBC REQ
        b) Input Msge :: JDBC Response
Mappings:
1) File REQ-->JDBC REQ
2) JDBC RES-->FILE RES
Interface mappings:
1: FILE 2 JDBC REQ--> JDBC 2 FLE RECV
CONFIGURATION ::
1: One Seder File CC
2: Two reciever CC's one is for JDBC RECEIVER and other s FILE RECEIVER
3; One Sender Agreement
4: 2 Recver agreements
5: One Interface Determination and
6: One RECCV Determination
My Question;;
1. First let confirm whether my development steps are right or not ?
2: Another thing s I am not sure reg Configuration Steps means
whetehr one interface determination and one Receiver Determinations are required or not as these are synchronous Interfaces
3: main Issue is::::
If my scenario s FILE2RFC2FILE then I will get RFC response automatically but here issue is this is JDBC
My reqquirement is By sending one Field from fILE to JDBC REQ it needs to send entire TAbLE records as a Response to file as XML
without having Sender JDBC how can I send the JDBC Res to FILE and If that is the case then again JDBC adapter is polling which is contradict to the client requuirement which i explained above.
pleas suggest me the Detailed steps mainly Colloboration agreements and logical routings and
also explain in detail if i can go for BPM
Also give cleear blogs but before giving make sure that it contains detailed screen shots because aIready gone thorugh
Scenario File-JDBC-RFC
File<-->JDBC Sync coomunication.
https://www.sdn.sap.com/irj/scn/wiki?path=/display/xi/file-rfc-file(Without+BPM)
/people/luis.melgar/blog/2008/05/13/synchronous-soap-to-jdbc--end-to-end-walkthrough
Regards::
Amar Srinivas Eli

Update query in JDBC adapter

Hi guys help me with this
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2) Why do we use the flag field in jdbc table ?

Hi,
1) What is the use of update query in jdbc adapter?
The purpose of the Update Query in JDBC is to change the status of the processed records in the table.
That is when JDBC query is executed it select the records from the table in the Database and it sends to the Receiver.
After that it executes the Update query to change the status of the processed records in the Table.
2) Why do we use the flag field in jdbc table ?
Flag field in the table is used to identify which record is processed by Jdbc adapter. Initial stage it will have the status as 0 , if it is successfully processed then it will updated to 1.
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Regards
Sridhar Goli

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Hi
how to stop query on run on interactive report startup
Thanks

Hello,
What do you mean exactly by "interactive report startup" ?
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[http://www.psoug.org/reference/kill_session.html]
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Jean-Valentin

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Message was edited by:
Ethan West

SQL-Query with JDBC returns error ORA-00600

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ORA-00600 with the Arguments [ttcgcshnd-1], [0] [], [], [], [], [], []
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Thanks, Harold

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Strange query from JDBC Thin Client on all_arguments

Hi,
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How can I speak with developers to get rid of that :) ?
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Regards
GregG

Whats the functionality behind that ? A quick search over the Internet shows that it seems related to this Java class :
oracle.jdbc.OracleDatabaseMetaData.getProcedureColumns

Query in JDBC

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Then one more query. .....
When i use concurrency of resultset as CONCUR_READ_ONLY i am able scroll back, but it takes more time for fetching the data.....
Please resolve my problem
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Hi,
>database connection details dynamically to the JDBC communication channel
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Regards
Agasthuri Doss

Not comitting database after the update query in jdbc

Hi all,
This is the first time I am posting this. I have query excuting on racle DB. This is update query. after executing the i have called commint using con.commit(). But still it is not showing the modifications in oracle db.
What could be went wrong? Any sugestion, please let me know. I think it is simple jdbc program. So i don't think i need to post the code. Application running in Unix machine.
Regards & thanks,
Nirmala Vijaya Sekhar Varre

VijayTechM wrote:
Connection con = null;
Class.forName("oracle.jdbc.driver.OracleDriver");
hi all,
// following is the code
con = DriverManager.getConnection("jdbc:oracle:thin:@10.129.239.43:1529:PBILLING","BILLING","BILLING");
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String invoice_header_query = "update invoice_header set file_traffico = '" + zipFileName + "' where bill_ref_no = '" + billRefNo_ + "' and bill_ref_resets = '" + billRefResets_ + "' and arbor_instance_id = '" + arborID_ + "'";
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regards,
VijayPost with code tags and where is your claimed exception handling?

Stop Query if it does not match with Condtions & Control the result count

Dear All,
I have requirement in my Environment, I have to stop the Queries which compromises these conditions
1. If Query is running more than specified threshold (if it running more than 2 mins).
2. If Query is fetching huge data (rows more than 1000 for example)
Please note we have done enough study on resource governor, it works on compile time, we need to control the queries during run time. Also resource governor does not restrict the resources if they are free.
Answers are appreciated.

Hello,
I would not advise you to do such things in your environment.2 mins is very less time how could you be so sure a 2 min query is bad. And your second point is totally baseless it wouldtake a query a fraction of secondto read 1000 rows.My answer would be please
dont implement.
If you want to test below query might achieve the first requirement, I have not tested it please treat this query as hint and optimize or add anything if required.
If you schedule this query through agent for every 2 mins or 5 mins .It can achieve.But some query takes more time to rollback than to finish scheduling this would lead to unstable environment
USE MASTER
IF EXISTS (SELECT * FROM TEMPDB.SYS.ALL_OBJECTS WHERE NAME LIKE '#KILL_CONNECTION')
BEGIN
DROP TABLE #KILL_CONNECTION
END
CREATE TABLE #KILL_CONNECTION
SESSION_ID INT
,TOTAL_ELAPSED_TIME BIGINT
,START_TIME DATETIME
INSERT INTO #KILL_CONNECTION
SELECT
SESSION_ID
,TOTAL_ELAPSED_TIME
,START_TIME
FROM SYS.DM_EXEC_REQUESTS
WHERE TOTAL_ELAPSED_TIME > 7200 AND SESSION_ID > 50
DECLARE @SESSION_ID BIGINT
DECLARE @CMD VARCHAR(1000)
DECLARE KILL_CONNECTION CURSOR FOR
SELECT SESSION_ID
FROM #KILL_CONNECTION
OPEN KILL_CONNECTION
FETCH NEXT FROM KILL_CONNECTION INTO @SESSION_ID
WHILE @@FETCH_STATUS = 0
BEGIN
SET @CMD = 'KILL ' + @SESSION_ID
EXECUTE (@CMD)
END
CLOSE KILL_CONNECTION
DEALLOCATE KILL_CONNECTION godrop table #Kill_connection
Please mark this reply as the answer or vote as helpful, as appropriate, to make it useful for other readers

Stopping query in jdbc

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