# Starting PostgreSQL database

{% hint style="info" %}
Please follow the steps to restart Screena Portal in this order:

1. [**Starting PostgreSQL database**](https://help.screena.ai/resources/how-to/start-screena-portal/starting-postgresql-database) **(you are here)**
2. [Starting Apache HTTP server](https://help.screena.ai/resources/how-to/start-screena-portal/starting-apache-http-server)
3. [Starting Screena application](https://help.screena.ai/resources/how-to/start-screena-portal/starting-screena-application)
   {% endhint %}

Enter this command to start PostgreSQL database:

```shell
sudo systemctl start postgresql
```