Well there is no equivalent syntax for the snippnet you have posted. I can help you understand what that code is doing.
CATEGORYS is the owner record.
CIMEX is the member record
and IX-CIMEX is the set record which define's the relationship between the owner and member record.
Actually in this code you are obtaining the owner record using a calc key.. which is similar to a primary key in db2 . But you will obtain the member record which is stored close to owner record sequentially.. and unfortunately you don't have equivalent syntax in db2.
