Use the Partitioning Key page of the Alter Table notebook to add or remove partitioning key columns.
The partitioning key can only be altered if this table resides in a
single-node nodegroup.
Fields and controls

To add partitioning key columns:
- Open the Alter Table notebook.
- Click on the Partitioning Key tab.
- In the Available columns box, select the columns that you want
to add as partitioning key columns.
- Click on the > push button to move the selected columns to the
Partitioning key columns box.
- If you do not want to make any additional changes to the table, click on
OK to alter your table and close the Alter Table notebook.
Otherwise, continue on to one or more of the optional tasks.

Related information