PostgreSQL connection | IBM Cloud Pak for Data as a Service

PostgreSQL connection

To access your data in PostgreSQL, create a connection asset for it.

PostgreSQL is an open source and customizable object-relational database.

Supported versions

PostgreSQL 15.0 and later
PostgreSQL 14.0 and later
PostgreSQL 13.0 and later
PostgreSQL 12.0 and later
PostgreSQL 11.0 and later
PostgreSQL 10.1 and later
PostgreSQL 9.6 and later

Create a connection to PostgreSQL

If you have set up an integrated cloud service, select the service instance to automatically fill in the fields in the connection form. Confirm that all the fields are complete.

To create the connection asset, you need the following connection details:

Database name
Hostname or IP address
Port number
Username and password
SSL certificate (if required by the database server)

Select Server proxy to access the PostgreSQL data source through a server proxy. Depending on its setup, a server proxy can provide load balancing, increased security, and privacy. The server proxy settings are independent of the authentication credentials and the personal or shared credentials selection. The server proxy settings cannot be stored in a vault.

Proxy hostname or IP address: The proxy URL. For example, https://proxy.example.com.
Server proxy port: The port number to connect to the proxy server. For example, 8080 or 8443.
The Proxy username and Proxy password fields are optional.

For Private connectivity, to connect to a database that is not externalized to the internet (for example, behind a firewall), you must set up a secure connection.

Choose the method for creating a connection based on where you are in the platform

In a project: Click Assets > New asset > Connect to a data source. See Adding a connection to a project.
In a catalog: Click Add to catalog > Connection. See Adding a connection asset to a catalog.
In a deployment space: Click Import assets > Data access > Connection. See Adding data assets to a deployment space.
In the Platform assets catalog: Click New connection. See Adding platform connections.

Next step: Add data assets from the connection

Where you can use this connection

You can use PostgreSQL connections in the following workspaces and tools:

Projects

Cognos Dashboards (Cognos Dashboard Embedded service)
Decision Optimization (watsonx.ai Studio and watsonx.ai Runtime)
Data quality rules (IBM Knowledge Catalog)
Data Refinery (watsonx.ai Studio or IBM Knowledge Catalog)
DataStage (DataStage service). For more information, see Connecting to a data source in DataStage.
Metadata enrichment (IBM Knowledge Catalog)
Metadata import (IBM Knowledge Catalog)
SPSS Modeler (watsonx.ai Studio)

Catalogs

Platform assets catalog
Other catalogs (IBM Knowledge Catalog)

Watson Query service: You can connect to this data source from Watson Query.

PostgreSQL setup

PostgreSQL installation

Running SQL statements

To ensure that your SQL statements run correctly, refer to the SQL Syntax in the PostgreSQL documentation.

Learn more

PostgreSQL documentation

Parent topic: Supported connections