hello together

i’m working with the xml-starterkit and have the following problem :

i’m using the example from the dokumentation : “representing joins” (the customer-product example).

the query /Order_key[@CustNo=“001”]/@ProdNo/ returns “XQL Request processed, no object returned”. in other words, with this query no product-data is returned.

when i use a query without a filter expression as /Order_key/@ProdNo/ i receive the product-data.

can someone give me an advice how to handle filter expressions in join-queries?

thanks very much for your help