Add c# and SQL Db Data to ASPX page

I have created an aspx page on a sharepoint 2013 site. I have customized the pages css, buttons, and layout exactly as I need. My goal now is to add a sql connection to a db on our network to pull data based on the user logged in. I have written the sql query to basically be "Select "field" From DB Where SharePointUserloggedinname like 'db.table.field' . I have tested this query in sql management studio, and it works perfectly. My question, is how do I add this sql query portion into my aspx page, set the query result to a variable and then display the queries results(variable) to display via a text field/paragraph tag/or other.

I have added the namespaces, and c# portion provided below into my aspx page but I am unsure how & where to place the c# code to connect to the sql db, set the variable, and then call that variable to display in a field further down the page.

`<%@ Import Namespace="System;"%>
<%@ Import Namespace="System.Collections.Generic;"%>
<%@ Import Namespace="System.ComponentModel;"%>
<%@ Import Namespace="System.Data;"%>
<%@ Import Namespace="System.Drawing;"%>
<%@ Import Namespace="System.Linq;"%>
<%@ Import Namespace="System.Text;"%>
<%@ Import Namespace="System.Threading.Tasks;"%>
<%@ Import Namespace="System.Windows.Forms;"%>
<%@ Import Namespace="System.Data.SqlClient;"%>
<%@ Import Namespace="System.Web.UI.Page" %>


<%@ public partial class _Default : System.Web.UI.Page
{
private SqlDataReader reader = null;
public SqlDataReader Reader { get { return reader; } set { reader = value; } }
protected void Page_Load(object sender, EventArgs e)
{
string connectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ToString();
SqlConnection connection = new SqlConnection(connectionString);
connection.Open();

SqlCommand command = new SqlCommand("SELECT [totalHours] FROM [DB].[dbo].[TABLE] Where [DB].[dbo].[TABLE].[column] like 'persons name') = @variable1", connection);
command.Parameters.Add(new SqlParameter("variable1", "anonymous"));

Reader = command.ExecuteReader();
}
}
%>

Any ideas or thoughts would be appreciated.