Multiple select queries used in Excel BI report ,fetching data from Sharepoint DB(SP2010_Prod_ProjectServer) causing blockage on DB ,when more than one workbook(same copy of Excel BI Report) refreshed using Refresh All option.

I am using mutiple select queries to fetch data from Project Server 2010 DB(its sharepoint DB) and these queries fetch data in Excel BI report by establishing connection with DB using instance name and all. I have enhance all these select queries and data
is being fetched in secs. but when more than one copy of same Excel BI report is refreshed using 'Refresh All' option, then these select queries cause blockage on DB.
Please let me know mitigation for this blockage issue.
Should I use begin transaction and commit transaction statements/ shared lock statements.
please reply

Hi,
run same query at the same time?

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<Modified the subject line>
Hi experts,
I want to fetch data of some fields from bset table but it is taking a lot of time as the table is cluster table.
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Edited by: Suhas Saha on Jun 29, 2011 1:51 PM

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<Added code tags>
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SURYA
Edited by: Suhas Saha on Jun 29, 2011 4:16 PM

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I'm developing a multiplayer-server, which shall be able to handle at least 2000 concurrent clients. To avoid the use of 4000 threads for 2000 clients (a thread for each stream), I would like to use NIO.
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private static final int BACKLOG = 32;
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private volatile boolean noStopRequested;
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        public void run() {
          try {
            start();
          } catch (Exception e) {
            Log.echoError("ClientListener: Unexpected error: "+e.getMessage());
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private void start() {
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private static final int INITIAL_WORKER_COUNT = 5;
private int port;
private Thread internalThread;
private volatile boolean noStopRequested;
private static Selector selector;
private Manager manager;
private WorkerPool pool;
private ClientListener clientListener;
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private void start() {
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                worker.process(key);
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                key.interestOps(key.interestOps() & (~SelectionKey.OP_WRITE));
                ClientWorker worker = (ClientWorker)pool.getWorker();
                worker.process(key);
              } else {
            } catch (CancelledKeyException cke) {
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              if (client != null) {
                client.disconnect();
                key.selector().wakeup();
        } catch (CancelledKeyException cke) {
          if (key != null) {
            Client client = (Client)key.attachment();
            if (client != null) {
              client.disconnect();
              key.selector().wakeup();
    } catch (Exception e) {
      e.printStackTrace();
    Log.echoSystem("ClientHandler: stopped");
public void registerClient(SocketChannel sc) throws Exception {
    sc.configureBlocking(false);
    Client client = new Client(...);
    SelectionKey key = sc.register(selector, SelectionKey.OP_READ, client);
    key.selector().wakeup();
public void stop() {
}

Ok, found the solution here: http://forum.java.sun.com/thread.jsp?forum=31&thread=282069
"The select() method holds a lock on the selector that
the register() method wants to acquire. The register()
method cannot continue until the lock is relased and
the select() method will not release it until some key
is triggered. If this is the first key you're adding
then select has nothing that will wake it up, ever.
The result is, obviously, a deadlock.
The solution is to have a queue of pending connections.
You put your new connection in that queue. Then you
wake up the selector and let that thread go through
the queue, registering connections."

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Hi, I would make it simple. I update directly to a SQL server.
1-
When I update only one field works.
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EXEC SQL.
UPDATE Articulos SET PrecioSinImp = :IT_MAT-PRECIOSINIMP        WHERE Modelo = :IT_MAT-MODELO
ENDEXEC.
ENDLOOP.
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WHERE Modelo = :IT_MAT-MODELO
ENDEXEC.
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You can do the same as below:
LOOP AT it_mat INTO e_mat. (e_mat of same structure as it_mat)
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Thanks and Best Regards,
Vikas Bittera.
<b><REMOVED BY MODERATOR></b>
Message was edited by:
        Alvaro Tejada Galindo

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Hi MnM Show,
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The related article:
Configuring Windows Failover Cluster Networks
http://blogs.technet.com/b/askcore/archive/2014/02/20/configuring-windows-failover-cluster-networks.aspx
I’m glad to be of help to you!
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected]

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!http://www.spotsbeforeyoureyes.com/Boris.jpg!
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Multiple select queries used in Excel BI report ,fetching data from Sharepoint DB(SP2010_Prod_ProjectServer) causing blockage on DB ,when more than one workbook(same copy of Excel BI Report) refreshed using Refresh All option.

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