# Split string transform


Use this transform to split a string column into an array.

**To add a Split String transform:**

1. Navigate to your visual ETL job in Amazon SageMaker Unified Studio.

1. Choose the plus icon to open the **Add nodes** menu.

1. Under **Transforms**, choose **Split String**.

1. Select the diagram to add the node to your visual ETL job.

1. Connect the transform node to a data source node.

1. Select the node on the diagram to view details about the transform.

1. Under **Column to split**, select the column that you want to split.

1. Under **Splitting regular expression**, enter a regular expression that defines the separator token.

1. (Optional) Under **Array column name, enter a name for the new column that contains the extracted array.**