How can i get the random values from database?

Hi,
i want to get random values from database.
I try my best find no solution
plz give solution in either sql query or java method.
thanks in advance.

try this:
Give a numeric row-id to each row of database.
say (1-100) for 100 rows
In the program use random function to get random number between 0 and 1. this value u multiply with 100(or total number of rows) and take integer value of it . u then perform sql query to select the a row which matches randomly genarated value with row-id assigned to each row of database
madhu

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8326=sun developer
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The Properties class is already a subclass of Hashtable. So if you have a Properties object, you already have a Hashtable. So all you need to do is the first part of that:Properties props = new Properties();
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<blockquote>Locked by Moderator as a duplicate/re-post.
Please continue the discussion in this thread: [tiki-view_forum_thread.php?comments_parentId=702631&forumId=1]
Thanks - c</blockquote>
== Issue
==
I have a problem with my bookmarks, cookies, history or settings
== Description
==
How can I get the default value of a particular preference in FireFox?.
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== User Agent
==
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Dear Friend,
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For free tral versions of JDBC Drivers go to www.Atinav.com

How can I get the "text" field from the actionEvent.getSource() ?

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user570667 wrote:
Hi 2 all,
How can i get the source code from java concurrent program in R12? like , "AP Turnover Report" is java concurrent program, i need to get its source code to know its logic. how can i get its source code not the XML template?
Regards,
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     org.apache.jsp.test_jsp._jspService(test_jsp.java:86)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
     com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:346)
     com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:152)
     org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
     org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:233)
     com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:107)
     com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:245)
     com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:137)
     javax.faces.webapp.FacesServlet.service(FacesServlet.java:214)
     org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:127)
     org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:277)
root cause
javax.faces.FacesException: Can't instantiate class: 'com.mypackage.MyBean'.. class com.mypackage.MyBean : java.lang.NullPointerException
     com.sun.faces.config.ManagedBeanFactory.newInstance(ManagedBeanFactory.java:229)
     com.sun.faces.application.ApplicationAssociate.createAndMaybeStoreManagedBeans(ApplicationAssociate.java:282)
     com.sun.faces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:97)
     com.sun.faces.el.impl.NamedValue.evaluate(NamedValue.java:145)
     com.sun.faces.el.impl.ComplexValue.evaluate(ComplexValue.java:166)
     com.sun.faces.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:263)
     com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:160)
     com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:143)
     com.sun.faces.application.ApplicationImpl.createComponent(ApplicationImpl.java:406)
     javax.faces.webapp.UIComponentTag.createComponent(UIComponentTag.java:1019)
     javax.faces.webapp.UIComponentTag.createChild(UIComponentTag.java:1046)
     javax.faces.webapp.UIComponentTag.findComponent(UIComponentTag.java:761)
     javax.faces.webapp.UIComponentTag.doStartTag(UIComponentTag.java:451)
     com.sun.faces.taglib.html_basic.SelectOneMenuTag.doStartTag(SelectOneMenuTag.java:487)
     org.apache.jsp.test_jsp._jspx_meth_h_005fselectOneMenu_005f0(test_jsp.java:259)
     org.apache.jsp.test_jsp._jspx_meth_h_005fpanelGroup_005f0(test_jsp.java:219)
     org.apache.jsp.test_jsp._jspx_meth_h_005fpanelGrid_005f0(test_jsp.java:189)
     org.apache.jsp.test_jsp._jspx_meth_h_005fform_005f0(test_jsp.java:160)
     org.apache.jsp.test_jsp._jspx_meth_f_005fview_005f0(test_jsp.java:127)
     org.apache.jsp.test_jsp._jspService(test_jsp.java:86)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
     com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:346)
     com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:152)
     org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
     org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:233)
     com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:107)
     com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:245)
     com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:137)
     javax.faces.webapp.FacesServlet.service(FacesServlet.java:214)
     org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:127)
     org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:277)
root cause
java.lang.ClassNotFoundException: class com.mypackage.MyBean : java.lang.NullPointerException
     java.beans.Beans.instantiate(Unknown Source)
     java.beans.Beans.instantiate(Unknown Source)
     com.sun.faces.config.ManagedBeanFactory.newInstance(ManagedBeanFactory.java:223)
     com.sun.faces.application.ApplicationAssociate.createAndMaybeStoreManagedBeans(ApplicationAssociate.java:282)
     com.sun.faces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:97)
     com.sun.faces.el.impl.NamedValue.evaluate(NamedValue.java:145)
     com.sun.faces.el.impl.ComplexValue.evaluate(ComplexValue.java:166)
     com.sun.faces.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:263)
     com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:160)
     com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:143)
     com.sun.faces.application.ApplicationImpl.createComponent(ApplicationImpl.java:406)
     javax.faces.webapp.UIComponentTag.createComponent(UIComponentTag.java:1019)
     javax.faces.webapp.UIComponentTag.createChild(UIComponentTag.java:1046)
     javax.faces.webapp.UIComponentTag.findComponent(UIComponentTag.java:761)
     javax.faces.webapp.UIComponentTag.doStartTag(UIComponentTag.java:451)
     com.sun.faces.taglib.html_basic.SelectOneMenuTag.doStartTag(SelectOneMenuTag.java:487)
     org.apache.jsp.test_jsp._jspx_meth_h_005fselectOneMenu_005f0(test_jsp.java:259)
     org.apache.jsp.test_jsp._jspx_meth_h_005fpanelGroup_005f0(test_jsp.java:219)
     org.apache.jsp.test_jsp._jspx_meth_h_005fpanelGrid_005f0(test_jsp.java:189)
     org.apache.jsp.test_jsp._jspx_meth_h_005fform_005f0(test_jsp.java:160)
     org.apache.jsp.test_jsp._jspx_meth_f_005fview_005f0(test_jsp.java:127)
     org.apache.jsp.test_jsp._jspService(test_jsp.java:86)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
     com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:346)
     com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:152)
     org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
     org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:233)
     com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:107)
     com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:245)
     com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:137)
     javax.faces.webapp.FacesServlet.service(FacesServlet.java:214)
     org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:127)
     org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:277)
root cause
java.lang.NullPointerException
     javax.faces.model.SelectItem.setValue(SelectItem.java:254)
     javax.faces.model.SelectItem.<init>(SelectItem.java:138)
     javax.faces.model.SelectItem.<init>(SelectItem.java:96)
     com.mypackage.MyBean.fillCountryItems(MyBean.java:80)
     com.mypackage.MyBean.<init>(MyBean.java:28)
     sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
     sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
     java.lang.reflect.Constructor.newInstance(Unknown Source)
     java.lang.Class.newInstance0(Unknown Source)
     java.lang.Class.newInstance(Unknown Source)
     java.beans.Beans.instantiate(Unknown Source)
     java.beans.Beans.instantiate(Unknown Source)
     com.sun.faces.config.ManagedBeanFactory.newInstance(ManagedBeanFactory.java:223)
     com.sun.faces.application.ApplicationAssociate.createAndMaybeStoreManagedBeans(ApplicationAssociate.java:282)
     com.sun.faces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:97)
     com.sun.faces.el.impl.NamedValue.evaluate(NamedValue.java:145)
     com.sun.faces.el.impl.ComplexValue.evaluate(ComplexValue.java:166)
     com.sun.faces.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:263)
     com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:160)
     com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:143)
     com.sun.faces.application.ApplicationImpl.createComponent(ApplicationImpl.java:406)
     javax.faces.webapp.UIComponentTag.createComponent(UIComponentTag.java:1019)
     javax.faces.webapp.UIComponentTag.createChild(UIComponentTag.java:1046)
     javax.faces.webapp.UIComponentTag.findComponent(UIComponentTag.java:761)
     javax.faces.webapp.UIComponentTag.doStartTag(UIComponentTag.java:451)
     com.sun.faces.taglib.html_basic.SelectOneMenuTag.doStartTag(SelectOneMenuTag.java:487)
     org.apache.jsp.test_jsp._jspx_meth_h_005fselectOneMenu_005f0(test_jsp.java:259)
     org.apache.jsp.test_jsp._jspx_meth_h_005fpanelGroup_005f0(test_jsp.java:219)
     org.apache.jsp.test_jsp._jspx_meth_h_005fpanelGrid_005f0(test_jsp.java:189)
     org.apache.jsp.test_jsp._jspx_meth_h_005fform_005f0(test_jsp.java:160)
     org.apache.jsp.test_jsp._jspx_meth_f_005fview_005f0(test_jsp.java:127)
     org.apache.jsp.test_jsp._jspService(test_jsp.java:86)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
     com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:346)
     com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:152)
     org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
     org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:233)
     com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:107)
     com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:245)
     com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:137)
     javax.faces.webapp.FacesServlet.service(FacesServlet.java:214)
     org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:127)
     org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:277)

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