How to put both instances in up state

We have two instances in our database(backupdb) (1) EXDB (2) SCBA, both start normally in the morning, but after some time one of instance SCBA stop replying, then i have to restart database again to resolve the issue, after this the problem do not reoccur for the rest of day. I could only find one suspected entry in listener status output where it say Instance "scba", status UNKNOWN, has 1 handler(s) for this service... How to resolve this issue.........
oracle@backupdb:~/11g/network/admin$ lsnrctl status
LSNRCTL for Linux: Version 11.1.0.6.0 - Production on 31-MAR-2011 11:55:21
Copyright (c) 1991, 2007, Oracle.  All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=backupdb)(PORT=1521)))
STATUS of the LISTENER
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.1.0.6.0 - Production
Start Date                31-MAR-2011 10:58:21
Uptime                    0 days 0 hr. 56 min. 59 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /home/oracle/11g/network/admin/listener.ora
Listener Log File         /home/oracle/diag/tnslsnr/backupdb/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=backupdb)(PORT=1521)))
Services Summary...
Service "exdb" has 1 instance(s).
  Instance "exdb", status READY, has 1 handler(s) for this service...
Service "exdbXDB" has 1 instance(s).
  Instance "exdb", status READY, has 1 handler(s) for this service...
Service "exdb_XPT" has 1 instance(s).
  Instance "exdb", status READY, has 1 handler(s) for this service...
Service "scba" has 1 instance(s).
  Instance "scba", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
less /home/oracle/11g/network/admin/listener.ora
# listener.ora Network Configuration File: /home/oracle/11g/network/admin/listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (GLOBAL_DBNAME = scba)
      (ORACLE_HOME = /home/oracle/11g)
      (SID_NAME = scba)
    (SID_DESC =
      (GLOBAL_DBNAME = exdb)
      (ORACLE_HOME = /home/oracle/11g)
      (SID_NAME = exdb)
EM_LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = backupdb)(PORT = 1522))
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = backupdb)(PORT = 1521))
  )

malhi wrote:
We have two instances in our database(backupdb) (1) EXDB (2) SCBA, both start normally in the morning, but after some time one of instance SCBA stop replying, then i have to restart database again to resolve the issue, after this the problem do not reoccur for the rest of day. I could only find one suspected entry in listener status output where it say Instance "scba", status UNKNOWN, has 1 handler(s) for this service... How to resolve this issue.........
oracle@backupdb:~/11g/network/admin$ lsnrctl status
LSNRCTL for Linux: Version 11.1.0.6.0 - Production on 31-MAR-2011 11:55:21
Copyright (c) 1991, 2007, Oracle.  All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=backupdb)(PORT=1521)))
STATUS of the LISTENER
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.1.0.6.0 - Production
Start Date                31-MAR-2011 10:58:21
Uptime                    0 days 0 hr. 56 min. 59 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /home/oracle/11g/network/admin/listener.ora
Listener Log File         /home/oracle/diag/tnslsnr/backupdb/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=backupdb)(PORT=1521)))
Services Summary...
Service "exdb" has 1 instance(s).
Instance "exdb", status READY, has 1 handler(s) for this service...
Service "exdbXDB" has 1 instance(s).
Instance "exdb", status READY, has 1 handler(s) for this service...
Service "exdb_XPT" has 1 instance(s).
Instance "exdb", status READY, has 1 handler(s) for this service...
Service "scba" has 1 instance(s).
Instance "scba", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
less /home/oracle/11g/network/admin/listener.ora
# listener.ora Network Configuration File: /home/oracle/11g/network/admin/listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = scba)
(ORACLE_HOME = /home/oracle/11g)
(SID_NAME = scba)
(SID_DESC =
(GLOBAL_DBNAME = exdb)
(ORACLE_HOME = /home/oracle/11g)
(SID_NAME = exdb)
EM_LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = backupdb)(PORT = 1522))
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = backupdb)(PORT = 1521))
Why are you defining two listeners? (listener and em_listener)?
One listener, with the default name of LISTENER, running from one oracle home, listening on a single port, will serve multiple database instances of multiple versions running from multiple homes. It is an unnecessary complexity to try to have multiple listeners or to name the listener as if it belongs to a particular database or client. That would be like the telephone company building a separate switchboard for each customer.

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com.sap.ip.bi.webapplications.runtime.rendering.impl.PageAssemblerRenderingRoot.processRendering(PageAssemblerRenderingRoot.java:50) at com.sap.ip.bi.webapplications.runtime.impl.Page.processRenderingRootNode(Page.java:2735) at com.sap.ip.bi.webapplications.runtime.impl.Page.processRendering(Page.java:2478) at com.sap.ip.bi.webapplications.runtime.impl.Page.doProcessRequest(Page.java:2432) at com.sap.ip.bi.webapplications.runtime.impl.Page.processRequest(Page.java:2054) ... 36 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.framework.base.composites.UiRootContainer.iterateOverChildren(UiRootContainer.java:40) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.ip.bi.webapplications.ui.framework.base.impl.BICompositeManager.renderRoot(BICompositeManager.java:83) at com.sap.ip.bi.webapplications.ui.items.UiItem.render(UiItem.java:376) ... 42 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.advancedcontrols.tabstrip.impl.AcTabStrip.iterateOverChildren(AcTabStrip.java:74) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.advancedcontrols.generic.impl.AcGeneric.renderComposite(AcGeneric.java:150) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 47 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.advancedcontrols.bridge.AcItemBridge.iterateOverChildren(AcItemBridge.java:62) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.advancedcontrols.generic.impl.AcGeneric.renderComposite(AcGeneric.java:150) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.tc.ur2.renderer.ie6.TabStripRenderer.renderTabStripItemContentFragment(TabStripRenderer.java:1889) at com.sap.tc.ur2.renderer.ie6.TabStripRenderer.renderTabStripFragment(TabStripRenderer.java:858) at com.sap.tc.ur2.renderer.ie6.TabStripRenderer.render(TabStripRenderer.java:69) at com.sap.ip.bi.webapplications.ui.unifiedrendering.RenderManager.render(RenderManager.java:183) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:59) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 52 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.framework.base.composites.UiRootContainer.iterateOverChildren(UiRootContainer.java:40) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 62 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.advancedcontrols.bridge.AcItemBridge.iterateOverChildren(AcItemBridge.java:62) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.advancedcontrols.generic.impl.AcGeneric.renderComposite(AcGeneric.java:150) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.tc.ur2.renderer.ie6.FlowLayoutRenderer.renderFlowLayoutItemFragment(FlowLayoutRenderer.java:254) at com.sap.tc.ur2.renderer.ie6.FlowLayoutRenderer.renderFlowLayoutFragment(FlowLayoutRenderer.java:210) at com.sap.tc.ur2.renderer.ie6.FlowLayoutRenderer.render(FlowLayoutRenderer.java:49) at com.sap.ip.bi.webapplications.ui.unifiedrendering.RenderManager.render(RenderManager.java:183) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:59) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 66 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.framework.base.composites.UiRootContainer.iterateOverChildren(UiRootContainer.java:40) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 76 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.advancedcontrols.tabstrip.impl.AcTabStrip.iterateOverChildren(AcTabStrip.java:74) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.advancedcontrols.generic.impl.AcGeneric.renderComposite(AcGeneric.java:150) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 80 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.advancedcontrols.bridge.AcItemBridge.iterateOverChildren(AcItemBridge.java:62) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.advancedcontrols.generic.impl.AcGeneric.renderComposite(AcGeneric.java:150) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.tc.ur2.renderer.ie6.TabStripRenderer.renderTabStripItemContentFragment(TabStripRenderer.java:1889) at com.sap.tc.ur2.renderer.ie6.TabStripRenderer.renderTabStripFragment(TabStripRenderer.java:858) at com.sap.tc.ur2.renderer.ie6.TabStripRenderer.render(TabStripRenderer.java:69) at com.sap.ip.bi.webapplications.ui.unifiedrendering.RenderManager.render(RenderManager.java:183) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:59) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 85 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.framework.base.composites.UiRootContainer.iterateOverChildren(UiRootContainer.java:40) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 95 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.advancedcontrols.tabstrip.impl.AcTabStrip.iterateOverChildren(AcTabStrip.java:74) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.advancedcontrols.generic.impl.AcGeneric.renderComposite(AcGeneric.java:150) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 99 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.advancedcontrols.bridge.AcItemBridge.iterateOverChildren(AcItemBridge.java:62) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.advancedcontrols.generic.impl.AcGeneric.renderComposite(AcGeneric.java:150) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.tc.ur2.renderer.ie6.TabStripRenderer.renderTabStripItemContentFragment(TabStripRenderer.java:1889) at com.sap.tc.ur2.renderer.ie6.TabStripRenderer.renderTabStripFragment(TabStripRenderer.java:858) at com.sap.tc.ur2.renderer.ie6.TabStripRenderer.render(TabStripRenderer.java:69) at com.sap.ip.bi.webapplications.ui.unifiedrendering.RenderManager.render(RenderManager.java:183) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:59) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 104 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.framework.base.composites.UiRootContainer.iterateOverChildren(UiRootContainer.java:40) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 114 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.advancedcontrols.bridge.AcItemBridge.iterateOverChildren(AcItemBridge.java:62) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.advancedcontrols.generic.impl.AcGeneric.renderComposite(AcGeneric.java:150) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.tc.ur2.renderer.ie6.FlowLayoutRenderer.renderFlowLayoutItemFragment(FlowLayoutRenderer.java:254) at com.sap.tc.ur2.renderer.ie6.FlowLayoutRenderer.renderFlowLayoutFragment(FlowLayoutRenderer.java:210) at com.sap.tc.ur2.renderer.ie6.FlowLayoutRenderer.render(FlowLayoutRenderer.java:49) at com.sap.ip.bi.webapplications.ui.unifiedrendering.RenderManager.render(RenderManager.java:183) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:59) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 118 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.framework.base.composites.UiRootContainer.iterateOverChildren(UiRootContainer.java:40) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 128 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.items.navigation.control.AcQueryNavigation.iterateOverChildren(AcQueryNavigation.java:126) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.advancedcontrols.generic.impl.AcGeneric.renderComposite(AcGeneric.java:150) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 132 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.advancedcontrols.tree.impl.AcTreeView.iterateOverChildren(AcTreeView.java:100) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.advancedcontrols.generic.impl.AcGeneric.renderComposite(AcGeneric.java:150) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.tc.ur2.renderer.ie6.GroupRenderer.renderGroupFragment(GroupRenderer.java:1184) at com.sap.tc.ur2.renderer.ie6.GroupRenderer.render(GroupRenderer.java:74) at com.sap.ip.bi.webapplications.ui.unifiedrendering.RenderManager.render(RenderManager.java:183) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:59) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 137 moreCaused by: com.sap.ip.bi.base.exception.BIBaseRuntimeException: Error while processing UR tree at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:36) at com.sap.ip.bi.webapplications.ui.advancedcontrols.dragdrop.impl.DragDropContainer.iterateOverChildren(DragDropContainer.java:362) at com.sap.ip.bi.webapplications.ui.framework.base.impl.Composite.renderComposite(Composite.java:135) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:55) at com.sap.tc.ur2.renderer.ie6.TreeRenderer.renderTreeNodeFragment(TreeRenderer.java:2223) at com.sap.tc.ur2.renderer.ie6.TreeRenderer.renderTreeNodeFragment(TreeRenderer.java:2338) at com.sap.tc.ur2.renderer.ie6.TreeRenderer.renderTreeNodeFragment(TreeRenderer.java:2338) at com.sap.tc.ur2.renderer.ie6.TreeRenderer.renderTreeFragment(TreeRenderer.java:704) at com.sap.tc.ur2.renderer.ie6.TreeRenderer.render(TreeRenderer.java:69) at com.sap.ip.bi.webapplications.ui.unifiedrendering.RenderManager.render(RenderManager.java:183) at com.sap.ip.bi.webapplications.ui.framework.base.impl.ExtendedRenderManager.render(ExtendedRenderManager.java:59) at com.sap.ip.bi.webapplications.ui.framework.base.impl.CompositeRenderer.process(CompositeRenderer.java:34) ... 146 moreCaused by: java.lang.NullPointerException

  • In  a SQL query whihc has join, How to reduce Multiple instance of a table

    in a SQL query which has join, How to reduce Multiple instance of a table
    Here is an example: I am using Oracle 9i
    is there a way to reduce no.of Person instances from the following query? or can I optimize this query further?
    TABLES:
    mail_table
    mail_id, from_person_id, to_person_id, cc_person_id, subject, body
    person_table
    person_id, name, email
    QUERY:
    SELECT p_from.name from, p_to.name to, p_cc.name cc, subject
    FROM mail, person p_from, person p_to, person p_cc
    WHERE from_person_id = p_from.person_id
    AND to_person_id = p_to.person_id
    AND cc_person_id = p_cc.person_id
    Thnanks in advance,
    Babu.

    SQL> select * from mail;
            ID          F          T         CC
             1          1          2          3
    SQL> select * from person;
           PID NAME
             1 a
             2 b
             3 c
    --Query with only ne Instance of PERSON Table
    SQL> select m.id,max(decode(m.f,p.pid,p.name)) frm_name,
      2         max(decode(m.t,p.pid,p.name)) to_name,
      3         max(decode(m.cc,p.pid,p.name)) cc_name
      4  from mail m,person p
      5  where m.f = p.pid
      6  or m.t = p.pid
      7  or m.cc = p.pid
      8  group by m.id;
            ID FRM_NAME   TO_NAME    CC_NAME
             1 a          b          c
    --Expalin plan for "One instance" Query
    SQL> explain plan for
      2  select m.id,max(decode(m.f,p.pid,p.name)) frm_name,
      3         max(decode(m.t,p.pid,p.name)) to_name,
      4         max(decode(m.cc,p.pid,p.name)) cc_name
      5  from mail m,person p
      6  where m.f = p.pid
      7  or m.t = p.pid
      8  or m.cc = p.pid
      9  group by m.id;
    Explained.
    SQL> select * from table(dbms_xplan.display);
    PLAN_TABLE_OUTPUT
    Plan hash value: 902563036
    | Id  | Operation           | Name   | Rows  | Bytes | Cost (%CPU)| Time     |
    |   0 | SELECT STATEMENT    |        |     3 |   216 |     7  (15)| 00:00:01 |
    |   1 |  HASH GROUP BY      |        |     3 |   216 |     7  (15)| 00:00:01 |
    |   2 |   NESTED LOOPS      |        |     3 |   216 |     6   (0)| 00:00:01 |
    |   3 |    TABLE ACCESS FULL| MAIL   |     1 |    52 |     3   (0)| 00:00:01 |
    |*  4 |    TABLE ACCESS FULL| PERSON |     3 |    60 |     3   (0)| 00:00:01 |
    PLAN_TABLE_OUTPUT
    Predicate Information (identified by operation id):
       4 - filter("M"."F"="P"."PID" OR "M"."T"="P"."PID" OR
                  "M"."CC"="P"."PID")
    Note
       - dynamic sampling used for this statement
    --Explain plan for "Normal" query
    SQL> explain plan for
      2  select m.id,pf.name fname,pt.name tname,pcc.name ccname
      3  from mail m,person pf,person pt,person pcc
      4  where m.f = pf.pid
      5  and m.t = pt.pid
      6  and m.cc = pcc.pid;
    Explained.
    SQL> select * from table(dbms_xplan.display);
    PLAN_TABLE_OUTPUT
    Plan hash value: 4145845855
    | Id  | Operation            | Name   | Rows  | Bytes | Cost (%CPU)| Time     |
    |   0 | SELECT STATEMENT     |        |     1 |   112 |    14  (15)| 00:00:01 |
    |*  1 |  HASH JOIN           |        |     1 |   112 |    14  (15)| 00:00:01 |
    |*  2 |   HASH JOIN          |        |     1 |    92 |    10  (10)| 00:00:01 |
    |*  3 |    HASH JOIN         |        |     1 |    72 |     7  (15)| 00:00:01 |
    |   4 |     TABLE ACCESS FULL| MAIL   |     1 |    52 |     3   (0)| 00:00:01 |
    |   5 |     TABLE ACCESS FULL| PERSON |     3 |    60 |     3   (0)| 00:00:01 |
    PLAN_TABLE_OUTPUT
    |   6 |    TABLE ACCESS FULL | PERSON |     3 |    60 |     3   (0)| 00:00:01 |
    |   7 |   TABLE ACCESS FULL  | PERSON |     3 |    60 |     3   (0)| 00:00:01 |
    Predicate Information (identified by operation id):
       1 - access("M"."CC"="PCC"."PID")
       2 - access("M"."T"="PT"."PID")
       3 - access("M"."F"="PF"."PID")
    PLAN_TABLE_OUTPUT
    Note
       - dynamic sampling used for this statement
    25 rows selected.
    Message was edited by:
            jeneesh
    No indexes created...                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

  • URGENT:PLEASE TELL ME HOW TO RUN BOTH "ITEXT & MYFACES1.0" TOGETHER?

    URGENT: HELP PLEASE. ITEXT AND MYFACES1.0.9 COMBINATION USE BLOCKS THE PDF GENERATED ITEXT.
    We are using ITEXT for PDF report generation in JSF web appliaction, We needed to implement the Fileupload, we tried both MYFACES1.0.9 and TOMAHAWK, both ways we also got the file uploading working. For this we needed to add the filter in the web.xml file ( <filter-name>ExtensionsFilter</filter-name> as below). NOW by doing this, it BLOCKS THE PDF OUTPUT OF THE ITEXT and the result in sumthing like corrupted PDF is spitted in the browser (%PDF-1.4 %âãà Ó 2 0 obj <>stream ÿØÿà JFIF� �`�`�ï¿................................................)
    When i remove the MYFACES1.0.9 only then the good PDF output is viewable in the BROWSER.
    PLEASE TELL ME HOW TO RUN BOTH ITEXT(for pdf report) and MYFACES1.0.9 (for fileuploading) TOGETHER?????
    ========================
    <?xml version = '1.0' encoding = 'windows-1252'?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee">
    <description>Empty web.xml file for Web Application</description>
    <servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.faces</url-pattern>
    </servlet-mapping>
    <session-config>
    <session-timeout>35</session-timeout>
    </session-config>
    <mime-mapping>
    <extension>html</extension>
    <mime-type>text/html</mime-type>
    </mime-mapping>
    <mime-mapping>
    <extension>txt</extension>
    <mime-type>text/plain</mime-type>
    </mime-mapping>
    <filter>
    <filter-name>ExtensionsFilter</filter-name>
    <filter-class>
    org.apache.myfaces.component.html.util.ExtensionsFilter
    </filter-class>
    <init-param>
    <param-name>uploadMaxFileSize</param-name>
    <param-value>10m</param-value>
    </init-param>
    <init-param>
    <param-name>uploadThresholdSize</param-name>
    <param-value>100k</param-value>
    </init-param>
    </filter>
    <filter-mapping>
    <filter-name>ExtensionsFilter</filter-name>
    <servlet-name>Faces Servlet</servlet-name>
    </filter-mapping>
    </web-app>
    ========================

    calm down!
    You always have the option of dumping the file uploading component and just using the Apache FileUpload API in a servlet - then you'll have full control over what happens when without any additional configuration needed.

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