NHibernate Update Using Composite Key?

May 11, 2010

I have a table defnition as given below:



If a client used a license to create a user, I need to update the Used column in the table. As I set ClientId column as the id column for this table in the mapping xml, I am getting TooManyRowsAffectedException. how to set a composite key at mapping level so that NHibernate can udpate based on ClientId and Type.

Something like: Update License SET Used=Used-1 WHERE ClientId='xxx' AND Type=1

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