Nested tables as separate lines in output

Question

I'm working with Adobe forms using transaction SFP from the ABAP Workbench. I'm trying to construct a prototype of an SD invoice, with one internal table having the basic item data, and then a secondary table with further information, such as discounts, taxes, etc. The item number is part of both tables so that they can be related to each other. Using right-click and Create in the context I constructed a loop on the main table, and then under that a loop on the secondary table, with the equal item number as a condition. It all works, but in the output the secondary data comes out on the same line as the main item data, and when I try to drag it down to the next line in the layout, it changes its position in the data view also, so that it's outside the loop and prints only once, over the second main item line. Surely for an invoice or a purchase order it's normal to have one basic item line, and then one or more other lines with various other information for each item. It's very easy in both SAPscript and Smart Forms to have a loop within a loop displaying separate lines, but so far I haven't been able to get it to work with Adobe.

Answer 1

Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
SQL> CREATE OR REPLACE TYPE table_type AS TABLE OF VARCHAR2 (8);
  2  /
Type created.
SQL> CREATE TABLE r(
  2    a INTEGER,
  3    b table_type)
  4    NESTED TABLE b STORE as b_1;
Table created.
SQL> CREATE TABLE s(
  2    a INTEGER,
  3    b table_type)
  4    NESTED TABLE b STORE as b_2;
Table created.
SQL> INSERT INTO r VALUES (1, table_type ('a', 'b'));
1 row created.
SQL> INSERT INTO s VALUES (1, table_type ('b', 'c'));
1 row created.
SQL> COLUMN c FORMAT A10;
SQL> SELECT r.a, r.b MULTISET UNION DISTINCT s.b c
  2  FROM   r, s
  3  WHERE  r.a = s.a;
         A C
         1 TABLE_TYPE('a', 'b', 'c')
SQL>