Using DMX To Rename Clusters

Hi,

I have a MS Clustering model based on knowledge-area and I want to rename each cluster to the name of the knowledge area. What would be the DMX to rename the cluster?

I have been trying to do something like -

UPDATE [Knowledge Base].Content
SET Node_Caption = [Knowledge Base].[Field]

(Field is the column in the mining structure [Knowledge Base] with the values to be assigned to the Node_Caption)

But this does not work. The DMX query editor on parsing the query says that it reached the end of input.

Can someone help me out?

~ Sanchet