> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cube.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Oracle

> The driver for Oracle is community-supported and is not maintained by Cube or the database vendor.

<Warning>
  The driver for Oracle is community-supported and is not maintained by Cube or the database vendor.
</Warning>

## Prerequisites

* The hostname for the [Oracle][oracle] database server
* The username/password for the [Oracle][oracle] database server
* The name of the database to use within the [Oracle][oracle] database server

## Setup

### Manual

Add the following to a `.env` file in your Cube project:

```dotenv theme={"dark"}
CUBEJS_DB_TYPE=oracle
CUBEJS_DB_HOST=my.oracle.host
CUBEJS_DB_NAME=my_oracle_database
CUBEJS_DB_USER=oracle_user
CUBEJS_DB_PASS=**********
```

## Environment Variables

| Environment Variable                                                                      | Description                                                                        | Possible Values           | Required |
| ----------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------- | ------------------------- | :------: |
| [`CUBEJS_DB_HOST`](/reference/configuration/environment-variables#cubejs_db_host)         | The host URL for a database                                                        | A valid database host URL |     ✅    |
| [`CUBEJS_DB_PORT`](/reference/configuration/environment-variables#cubejs_db_port)         | The port for the database connection                                               | A valid port number       |     ❌    |
| [`CUBEJS_DB_NAME`](/reference/configuration/environment-variables#cubejs_db_name)         | The name of the database to connect to                                             | A valid database name     |     ✅    |
| [`CUBEJS_DB_USER`](/reference/configuration/environment-variables#cubejs_db_user)         | The username used to connect to the database                                       | A valid database username |     ✅    |
| [`CUBEJS_DB_PASS`](/reference/configuration/environment-variables#cubejs_db_pass)         | The password used to connect to the database                                       | A valid database password |     ✅    |
| [`CUBEJS_DB_SSL`](/reference/configuration/environment-variables#cubejs_db_ssl)           | If `true`, enables SSL encryption for database connections from Cube               | `true`, `false`           |     ❌    |
| [`CUBEJS_DB_MAX_POOL`](/reference/configuration/environment-variables#cubejs_db_max_pool) | The maximum number of concurrent database connections to pool. Default is `8`      | A valid number            |     ❌    |
| [`CUBEJS_CONCURRENCY`](/reference/configuration/environment-variables#cubejs_concurrency) | The number of [concurrent queries][ref-data-source-concurrency] to the data source | A valid number            |     ❌    |

[ref-data-source-concurrency]: /admin/connect-to-data/concurrency#data-source-concurrency

## SSL

To enable SSL-encrypted connections between Cube and Oracle, set the
[`CUBEJS_DB_SSL`](/reference/configuration/environment-variables#cubejs_db_ssl) environment variable to `true`. For more information on how to
configure custom certificates, please check out [Enable SSL Connections to the
Database][ref-recipe-enable-ssl].

[oracle]: https://www.oracle.com/uk/index.html

[ref-recipe-enable-ssl]: /recipes/configuration/using-ssl-connections-to-data-source