Layout_Person := RECORD
  UNSIGNED3 PersonID;
  STRING15  FirstName;
  STRING25  LastName;
  STRING1   MiddleInitial;
  STRING1   Gender;
  STRING42  Street;
  STRING20  City;
  STRING2   State;
  STRING5   Zip;
END;

Layout_Accounts := RECORD
  STRING20  Account;
  STRING8   OpenDate;
  STRING2   IndustryCode;
  STRING1   AcctType;
  STRING1   AcctRate;
  UNSIGNED1 Code1;
  UNSIGNED1 Code2;
  UNSIGNED4 HighCredit;
  UNSIGNED4 Balance;
END;

Layout_Accounts_Link := RECORD
  UNSIGNED3 PersonID;
  Layout_Accounts;
END;

Layout_Combined := RECORD,MAXLENGTH(1000)
  Layout_Person;
  DATASET(Layout_Accounts) Accounts;
END;

These RECORD structures define the field layouts for three datasets: a parent file (Layout_Person), a child file (Layout_Accounts_Link), and a parent with nested child dataset (Layout_Combined). These are used to generate three separate data files. The Layout_Accounts_Link and Layout_Accounts structures are separate because the child records in the nested structure will not contain the linking field to the parent, whereas the separate child file must contain the link.