I am new to cache programming language . I am facing below issue . please assist.
Question: One persistent class ID column is a combination of its properties (Roll No and Marks) [ Exact: RollNo||Marks]. When i am running the query from Management portal it is displaying data in the same format and data is there. But in the code if i am making below statement, i am getting null value.
Set ExistsID=##Class(User.School).%ExistsId(RollNo_"||"_Marks)
set ID=##Class(User.School).%OpenId(RollNo_"||"_Marks)