Setting Multi Variables with Multi SQL Queries: Performance Bottleneck?

Hello ODI Experts,
I have created a Logical & Physical Schema and Source Data Store to pick data from DB Table. Now I am setting variables with simple SELECT Query for setting each variable (in its Refreshing tab>Select Query field).
It gives me a less optimized approach picking one column per query (per variable). Lets say, I have to pick 35 columns from a table and put those in 35 variables...It would mean running 35 queries for fetching one record from the database table.
Doesn't it seem less performance effective (less optimized)..a little scary..or ODI does it with some internal optimized technique?
Any thing better or a different approach that I can do to make variable setting more optimized?
Please guide.
Thanks & Regards,
Ahsan Asghar

Hi GottaLoveSQL,
According to your description, you want to improve the performance of report with subreports. Right?
In Reporting Services, the usage of subreport will impact the report performance, because the report server processes each instance of a subreport as a separate report. So the best way is avoid using subreport by using LookUp , MultiLookUp , LookUpSet, which
will bridge different data sources. In this scenario, we suggest you cache the report with subreport. We can create a cache refresh plan for the report in Report Manager. Please refer to the link below:
http://technet.microsoft.com/en-us/library/ms155927.aspx
Reference:
Report Performance Optimization Tips (Subreports, Drilldown)
Performance, Snapshots, Caching (Reporting Services)
Performance Issue in SSRS 2008
If you have any question, please feel free to ask.
Best Regards,
Simon Hou

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ok this is what I've done so far but the queries don't work
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AS
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AS
SELECT
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javax.faces.webapp.FacesServlet.service(FacesServlet.java:213) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:64) at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._invokeDoFilter(AdfFacesFilterImpl.java:228) at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._doFilterImpl(AdfFacesFilterImpl.java:197) at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl.doFilter(AdfFacesFilterImpl.java:123) at oracle.adf.view.faces.webapp.AdfFacesFilter.doFilter(AdfFacesFilter.java:103) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:15) at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:162) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:620) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:369) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:865) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:447) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:215) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:117) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:110) at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260) at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:239) at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:34) at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:880) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303) at java.lang.Thread.run(Thread.java:595)Caused by: java.lang.NullPointerException at oracle.jbo.domain.TypeFactory.getInstance(TypeFactory.java:85) at oracle.jbo.uicli.binding.JUCtrlListBinding.matchTargetWithLov(JUCtrlListBinding.java:868) at oracle.jbo.uicli.binding.JUCtrlListBinding.findListIndex(JUCtrlListBinding.java:1106) at oracle.jbo.uicli.binding.JUCtrlListBinding.setValueAt(JUCtrlListBinding.java:1725) at oracle.jbo.uicli.binding.JUCtrlListBinding.updateValuesFromRow(JUCtrlListBinding.java:1338) at oracle.jbo.uicli.binding.JUCtrlListBinding.getSelectedIndex(JUCtrlListBinding.java:702) at oracle.jbo.uicli.binding.JUCtrlListBinding.getInputValue(JUCtrlListBinding.java:1799) at oracle.adfinternal.view.faces.model.binding.FacesCtrlListBinding.getInputValue(FacesCtrlListBinding.java:73) at oracle.jbo.uicli.binding.JUCtrlValueBinding.internalGet(JUCtrlValueBinding.java:1691) at oracle.jbo.uicli.binding.JUCtrlListBinding.internalGet(JUCtrlListBinding.java:1972) at oracle.adfinternal.view.faces.model.binding.FacesCtrlListBinding.internalGet(FacesCtrlListBinding.java:89) at oracle.adf.model.binding.DCControlBinding.get(DCControlBinding.java:649) at com.sun.faces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:79) at oracle.adfinternal.view.faces.model.FacesPropertyResolver.getValue(FacesPropertyResolver.java:92) at com.sun.faces.el.impl.ArraySuffix.evaluate(ArraySuffix.java:187) at com.sun.faces.el.impl.ComplexValue.evaluate(ComplexValue.java:171) at com.sun.faces.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:263) at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:160)

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