<\/span><\/h1>\n\n\n\nA WordPress Database Connection Error<\/strong> occurs when WordPress cannot communicate with the database that stores your website’s content, settings, users, orders, and other important information.<\/p>\n\n\n\nInstead of loading your website normally, visitors may see a message such as:<\/p>\n\n\n\n
\nError establishing a database connection<\/p>\n<\/blockquote>\n\n\n\n
This error can affect the entire website and may also prevent you from accessing the WordPress administrator area.<\/p>\n\n\n\n
Fortunately, the problem is often caused by a configuration issue, unavailable database server, incorrect database credentials, corrupted database tables, or hosting resource limitations.<\/p>\n\n\n\n
This guide explains how to identify and fix the WordPress database connection error step by step.<\/p>\n\n\n\n
\n\n\n\n<\/span>What Is a WordPress Database Connection Error?<\/span><\/h2>\n\n\n\nWordPress uses a database, usually MySQL or MariaDB<\/strong>, to store dynamic website information.<\/p>\n\n\n\nWhen someone visits your WordPress website, WordPress connects to the database and retrieves information such as:<\/p>\n\n\n\n
\n- Posts and pages<\/li>\n\n\n\n
- User accounts<\/li>\n\n\n\n
- Website settings<\/li>\n\n\n\n
- Plugin settings<\/li>\n\n\n\n
- Theme settings<\/li>\n\n\n\n
- Comments<\/li>\n\n\n\n
- WooCommerce products and orders<\/li>\n\n\n\n
- Categories and tags<\/li>\n\n\n\n
- Metadata<\/li>\n<\/ul>\n\n\n\n
If WordPress cannot establish that connection, it cannot build the requested page.<\/p>\n\n\n\n
The result is commonly:<\/p>\n\n\n\n
Error establishing a database connection<\/code><\/pre>\n\n\n\n
\n\n\n\n<\/span>Common Causes of the Error<\/span><\/h1>\n\n\n\nSeveral problems can prevent WordPress from connecting to its database.<\/p>\n\n\n\n
<\/span>1. Incorrect database credentials<\/span><\/h3>\n\n\n\nWordPress uses values stored in wp-config.php<\/code> to connect to the database.<\/p>\n\n\n\nIf the database name, username, password, or host is incorrect, the connection can fail.<\/p>\n\n\n\n
<\/span>2. Database server is unavailable<\/span><\/h3>\n\n\n\nYour MySQL or MariaDB server may be temporarily unavailable because of a server problem, maintenance, or overload.<\/p>\n\n\n\n
<\/span>3. Incorrect database host<\/span><\/h3>\n\n\n\nMost WordPress installations use localhost<\/code> as the database host, but some hosting environments use a different hostname or database server address.<\/p>\n\n\n\n<\/span>4. Corrupted database<\/span><\/h3>\n\n\n\nOne or more database tables may become damaged or corrupted.<\/p>\n\n\n\n
<\/span>5. Hosting resource limits<\/span><\/h3>\n\n\n\nA busy website may exceed available CPU, RAM, database connections, or other hosting resources.<\/p>\n\n\n\n
<\/span>6. Incorrect database user permissions<\/span><\/h3>\n\n\n\nThe database user may no longer have permission to access the required database.<\/p>\n\n\n\n
<\/span>7. DNS or networking problems<\/span><\/h3>\n\n\n\nOn websites using a remote database server, network or DNS problems can prevent WordPress from reaching the database.<\/p>\n\n\n\n
<\/span>8. Recent configuration changes<\/span><\/h3>\n\n\n\nChanging hosting accounts, migrating websites, modifying database credentials, or editing wp-config.php<\/code> can cause connection problems.<\/p>\n\n\n\n
\n\n\n\n<\/span>Step 1: Confirm the Error<\/span><\/h1>\n\n\n\nFirst, open your website in a private\/incognito browser window.<\/p>\n\n\n\n
You can also try:<\/p>\n\n\n\n
https://example.com<\/code><\/pre>\n\n\n\nand:<\/p>\n\n\n\n
https://example.com\/wp-admin\/<\/code><\/pre>\n\n\n\nIf both show a database connection error, the problem is likely related to WordPress configuration, the database, or the hosting environment.<\/p>\n\n\n\n
If only one page is affected, the cause may be different.<\/p>\n\n\n\n
\n\n\n\n<\/span>Step 2: Check Whether Your Hosting Server Is Working<\/span><\/h1>\n\n\n\nBefore changing WordPress files, check your hosting control panel.<\/p>\n\n\n\n
Depending on your hosting environment, you may have access to:<\/p>\n\n\n\n