adding data in angular

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AngularJs

Hi All ,
I want to save data from a users input into a table using angular, lets say I have got a table in named Persons; how would I write a function that would save the data onto a database.
So i have got this:

Angular JS File code:

app.controller("MainController", function($scope) {

    $scope.inputfName = "";
    $scope.inputLastName = "";


    $scope.addNew = function() {

        //This is where I am stuck!

    };




});

in my HTML file I have got the GUI;

<div id='content' ng-app='MyApp' ng-controller='MainController'>
       <label>First Name:</label>
       <input type="text" ng-model="inputfName"/> <br/>
       <label>Last Name::</label>
     &nbsp;  <input type="text" ng-model="inputLastName"/>
    &nbsp; &nbsp;  <button ng-click="addNew()">Add New</button>


   </div>

How do I add? or how to create an sql insert statement in angular js?? Note: I am using visual studio