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PostgreSQL connection

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 (Watson Studio and Watson Machine Learning)
  • Data quality rules (IBM Knowledge Catalog)
  • Data Refinery (Watson 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 (Watson 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

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