Introduction

This article shows how to do table splitting and update data operations.

SQL Server table structure


Create an ASP.Net Web Application as in the following:


Set up Entity Framework as in the following:


Cut columns from the employee entity as in the following:


Paste them into the EmployeeDetails entity as in the following:


Add an association between Employee and EmployeeDetails as in the following:


Referential constraints


Webform1.aspx

  1. <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="Table_Splitting_Update_Data.WebForm1" %>
  3. <!DOCTYPE html>
  5. <html xmlns="http://www.w3.org/1999/xhtml">
  6. <head runat="server">
  7. <title></title>
  8. </head>
  9. <body>
  10. <form id="form1" runat="server">
  11. <div>
  12. <asp:Button ID="Button1" runat="server" Text="Update" OnClick="Button1_Click" />
  13. </div>
  14. </form>
  15. </body>
  16. </html>

Webform1.aspx.cs

  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Web;
  5. using System.Web.UI;
  6. using System.Web.UI.WebControls;
  8. namespace Table_Splitting_Update_Data
  9. {
  10. public partial class WebForm1 : System.Web.UI.Page
  11. {
  12. protected void Page_Load(object sender, EventArgs e)
  13. {
  15. }
  17. protected void Button1_Click(object sender, EventArgs e)
  18. {
  19. EmployeeDBEntities empContext = new EmployeeDBEntities();
  20. int empId = 1;
  21. var emp = empContext.Employees.Where(a => a.EmpId.Equals(empId)).SingleOrDefault();
  22. emp.FirstName = "Jonny";
  23. emp.EmployeeDetail.Email = "[email protected]";
  24. empContext.SaveChanges();
  25. }
  26. }
  27. }

The following is the output of the application:


Before performing update operation:

After performing update operation:

Summary

In this article we saw how to do table splitting and update data operations.
Happy coding!