Magento custom module with custom database table admin page

Below Code is simple method to view your custom table datas in admin panel
Admin view for your custom module :

Create the below path in your module :

/app/code/local/<Namespace>/<Module>/etc/adminhtml.xml

in adminhtml.xml file contain below content

<?xml version="1.0"?>
<config>
    <menu>
        <[module] module="[module]">
            <title>[Module]</title>
            <sort_order>71</sort_order>               
            <children>
                <items module="[module]">
                    <title>Manage Items</title>
                    <sort_order>0</sort_order>
                    <action>[module]/adminhtml_[module]</action>
                </items>
            </children>
        </[module]>
    </menu>
    <acl>
        <resources>
            <all>
                <title>Allow Everything</title>
            </all>
            <admin>
                <children>
                    <[module]>
                        <title>[Module] Module</title>
                        <sort_order>200</sort_order>
                    </[module]>
                </children>
            </admin>
        </resources>   
    </acl>
    <layout>
        <updates>

Create the Adminhtml folder and create Controller.php file 

/app/code/local/<Namespace>/<Module>/controllers/Adminhtml/<Module>Controller.php

in <Module>Controller.php file contain below content

<?php 
class <Namespace>_<module>_Adminhtml_<module>Controller extends Mage_Adminhtml_Controller_Action
{

    public function indexAction()
    {
            $this->loadLayout()->_setActiveMenu('<module>/items');
            $this->renderLayout();

    }   

}

app/design/adminhtml/default/default/layout/.xml

in <module>.xml file contain below content

<?xml version="1.0"?>
<layout version="0.1.0">
    <[module]_adminhtml_[module]_index>
        <reference name="content">
            <block type="core/template" name="domain" template="[module]/[module].phtml"/>
        </reference>
    </[module]_adminhtml_[module]_index>
</layout>

Create the new folder in below path 

app/design/adminhtml/default/default/template/<module>/<module>.phtml

in <module>.phtml file contain below content

<?php

// Write your custom table Collection Here

?>