S) Rollup Accumulation Function Scenario

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Solution:- 

 

Ip-DML 

 

Record 

String(“|”)id; 

String(“\n”)data; 

End; 

 

Rollup  

 

Key :id 

 

out :: rollup(in) = 

begin 

  out.data :: string_join(accumulation(in.data),""); 

  out.id :: in.id; 

end; 

 

Op-DMl 

 

Record 

String(“|”)id; 

String(“\n”)data; 

end 

 

 

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