How do you troubleshoot if you are not able to connect to a database?

Why is my database not connecting?

There are four typical causes of the database connection error: Incorrect database login credentials. Possibly the most common cause of the Error Establishing a Database Connection is simply that WordPress has incorrect login credentials for your database. This could be either the database name, username, or password.

What does it mean when it says Error establishing a database connection?

This error means that your website files (on the webserver) are not able to connect to your database (on the database server). This article lists some common reasons this error could display on your site, including: Incorrect database credentials in your config file. The hostname isn't working.

How do I test a database connection?

Background1Create a file on the server called test. udl.2Double-click the test. ... 3Click the Provider tab.4Select Microsoft OLE DB Provider for SQL Server.5Click Next.6On the Connection tab, enter the connection information entered for the database connection: ... 7Type the SQL database credentials.8Click Test Connection.Testing database connections - DotNetNuke

How do I get rid of Error establishing a database connection?

5 Easy Fixes for QuickError Establishing a Database Connection in WordPress:1Check whether your database login credentials are correct (most common reason of the issue).2Repair a corrupt database with WordPress' built-in database repair mode: define('WP_ALLOW_REPAIR', true);3Fix corrupt files.How to Fix "Error Establishing a Database Connection" in WordPress