# Databases on Linux hosting: MariaDB and PostgreSQL > Create MariaDB and PostgreSQL databases on HyperDC Linux hosting, copy the connection details into your application and run queries in the SQL console. Difficulty: Intermediate Your Linux hosting plan includes **MySQL-compatible (MariaDB)** and **PostgreSQL** databases. You create and work with them in the **Databases** tab of your service page. Databases accept connections only from the server itself: your websites reach them, and nobody on the internet can. ## Step 1: Create a database 1. Open **Databases** and select **New Database**. 2. Choose the **Engine**: **MySQL** for MariaDB, or **PostgreSQL**. 3. Enter a **Database name** using letters, digits and underscores. 4. Enter a **Password** and select **Create Database**. > **Warning** > > Keep the password somewhere safe: it is never shown again. **Verify:** the database appears in the list with its engine, its login and its size. The three dots in a database's row hold **Connection String**, **Change Password** and **Delete**. **Delete** removes the database, its login and all its data for good, and websites that use it stop working. ## Step 2: Connect your application Open the database's menu and select **Connection String**. It shows the **Host**, **Database**, **Login** and the full **Connection string**, each with a copy button. Enter these in your application's settings together with the password you set, for example in `wp-config.php` for WordPress or `.env` for Laravel. The host is the server itself, as shown here and under **Connection details** on **Overview**. Connections from anywhere else are refused. ## Step 3: Run a query in the SQL console 1. Select **SQL Console** next to the database. 2. Enter the **Database password**. 3. Select a table's name to fill in a sample query, or write your own under **SQL**. 4. Select **Run Query**. The result appears below it. A query that changes or deletes data asks you to confirm first, because it cannot be undone. For tables, imports and more, select **Database Manager** next to the database; see [Database Manager on Linux hosting](/guides/linux-hosting-database-manager). ## Step 4: Change the password In the database's menu, select **Change Password**, enter the **New password** and confirm. The old password stops working at once, so update your application's settings straight away. ## Troubleshooting **Access denied or authentication failed.** The password in your application is not the one you set, or the user name is not the database's login shown in the list. **Connection refused from your computer.** Databases answer only to the server itself. Run your queries in the SQL console, or let your website do the work. ## Next steps - Work with your tables in the browser: [Database Manager on Linux hosting](/guides/linux-hosting-database-manager). - More sites and their PHP version: [domains, PHP and .htaccess on Linux hosting](/guides/linux-hosting-domains-php). - How your data is kept apart from other customers: [security, logs and isolation on Linux hosting](/guides/linux-hosting-security-logs). ## Frequently asked questions ### How many databases can I create? As many as you need: MariaDB (MySQL) and PostgreSQL databases are unlimited on every plan. Overview shows how many you have. ### Why does the list say MySQL when my plan says MariaDB? MariaDB is MySQL-compatible: it works with MySQL connectors and applications, so the Engine list calls it MySQL. ### Can I connect from my own computer? No. Databases accept connections only from the server itself, so a database tool on your computer cannot reach them. Use the SQL console on your service page, or Database Manager. ### Can I see the password again? No. The password is shown only while you type it. Change Password in the database's menu sets a new one; the old one stops working at once. ### Do databases use my disk space? Yes. Overview shows how much of your disk space your databases use. --- Source: \ Updated: 2026-11-07