# PostgreSQL Quickstart

PostgreSQL is an open source, object-relational database built for extensibility, data integrity, and speed. Its concurrency support makes it fully ACID-compliant, and it supports dynamic loading and catalog-driven operations to let users customize its data types, functions, and more.

## Create PostgreSQL Database Clusters

1. From the **Create** menu in the top right of the [control panel](https://cloud.digitalocean.com/databases), click **Databases**.
2. Select PostgreSQL as the database engine.
3. Choose the cluster configuration and datacenter, and give the cluster a unique name.**Tip**: For the best performance, create your database cluster in the same region as your Droplets.
4. Click **Create a Database Cluster**.

## Change Size or Number of Cluster Nodes

1. Select your database cluster from the [**Databases** page](https://cloud.digitalocean.com/databases).
2. Click the **Settings** tab.
3. Click **Edit** in the **Cluster configuration** section.
4. Select the node size and number of optional standby nodes.
5. Click **Save**.

## Relocate Database Clusters

1. Select your database cluster from the [**Databases** page](https://cloud.digitalocean.com/databases).
2. Click the **Settings** tab.
3. Click **Edit** in the **Cluster datacenter** section.
4. Select the region and datacenter to which you want to relocate your cluster.
5. Click **Save**.

## Add Additional Users or Databases

1. Select your database cluster from the [**Databases** page](https://cloud.digitalocean.com/databases).
2. Click the **Users & Databases** tab.
3. Enter users or database names in the corresponding field.
4. Click **Save**.

Use a client application or command-line tool to manage specific user permissions.

## Create Connection Pools

1. Select your database cluster from the [**Databases** page](https://cloud.digitalocean.com/databases).
2. Click the **Connection Pools** tab.
3. Click **Create a Connection Pool**.
4. Enter your pool name, the logical database to which the pool will connect, the user it will connect with, the pooling mode, and the pool size.
5. Click **Create Pool**.

## Delete Database Clusters

1. Select your database cluster from the [**Databases** page](https://cloud.digitalocean.com/databases).
2. Click the **Settings** tab.
3. Click **Destroy** in the **Destroy this database cluster** section.
4. Enter the name of the database cluster.
5. Click **Destroy**.