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IBM Db2 connection
IBM Db2 connection

IBM Db2 connection

To access your data in an IBM Db2 database, create a connection asset for it.

IBM Db2 is a database that contains relational data.

Supported versions

IBM Db2 10.1 and later

Create a connection to Db2

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

  • Username and password
  • SSL certificate (if required by your database server)

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 > Data access tools > Connection. 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 Add to space > Connection. See Adding connections 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 Db2 connections in the following workspaces and tools:


  • Cognos Dashboards (Watson Studio)
  • Data Refinery (Watson Studio or Watson Knowledge Catalog)
  • DataStage (DataStage service). The Db2 (optimized) connection for DataStage gives you increased performance and more features such as before and after SQL statements, sparse lookup, and rejects links. However, you cannot use the "(optimized)" connection outside of the DataStage service.
  • Decision Optimization (Watson Studio and Watson Machine Learning)
  • Metadata import (Watson Knowledge Catalog)
  • Notebooks (Watson Studio). Use the insert-to-code function to get the connection credentials and load the data into a data structure. See Load data from data source connections.
  • SPSS Modeler (Watson Studio)


  • Platform assets catalog
    • Other catalogs (Watson Knowledge Catalog)

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

Running SQL statements

To ensure that your SQL statements run correctly, refer to the IBM Db2 product documentation for the correct syntax.

Learn more

IBM Db2 product documentation

Parent topic: Supported connections