select mandt,werks,matnr,zltno,vcode,zmsta,ersda,row_number() over(partition by mandt,werks,matnr,zltno order by ersda desc)rid from ytest002
The result is: 
Can I make a cds view like this?
what function can i use in cds view?
i can use substring function, but any other functions i can't use in the cds view.
it tell me there is an error,and i can't active it
