Database Connection Troubleshooting: A Practical Guide for Developers

This assignment provides a detailed guide to troubleshooting database connection issues. It outlines the necessary steps to configure and connect a web application to a database, including modifying the web configuration file with the correct database credentials. The assignment addresses common problems encountered when the application fails to connect, providing practical solutions such as using the "services.msc" utility to restart the SQL Server service and configuring TCP/IP settings within the SQL Server Configuration Manager. The guide includes step-by-step instructions and screenshots to aid in the troubleshooting process, ensuring a comprehensive approach to resolving connection issues. This resource is invaluable for developers facing database connectivity challenges, offering clear and concise solutions for a seamless application experience. This assignment is contributed by a student and available on Desklib, a platform providing AI-based study tools.

This is following steps to connect our application with database:
After published/host your web application there will be web config file before running you application
you need to add/modify your current database credential with your application:
Data Source = System Name (Name should be register as in SQL database).
Initial Catalog=Database Name.
User Id=SQL user id credential.
Password=SQL password credential.
1. In spite of changing this step when application is not connecting showing the following message at
application end:

If published application is on network:
First step attempts:
(I) Press window + R (Run window Open) and in run window type "services.msc" and new
services open find SQL SERVER(SQLEXPRESS) service start and try again it works for me
Hope Its Works for You also.
Second step attempts:
(I) Open "SQL Server Configuration Manager"
(II) Now Click on "SQL Server Network Configuration" and Click on "Protocols for Name"
(III) Right Click on "TCP/IP" (make sure it is Enabled) Click on Properties
(IV) Now Select "IP Addresses" Tab -and- Go to the last entry "IP All"
(V) Enter "TCP Port" 1433.
(VI) Now Restart "SQL Server .Name." using "services.msc" (winKey + r)
Screen Shots:
1) Open Sql Server Configuration Manager --> SQL Server Network configuration --
> Protocols for <(INSTANCE)> --> TCP/IP (double click on it).
2) Select --> IP Addresses(Tab).
3) Go to the last entry IP All and mention TCP Port 1433.

4) Press Win+R and enter services.msc.
5) Now restart SQL Server <(INSTANCE)>.