Parallel Processing or Using Nested Loops:
Itab1
| PO Number |
| 00001 |
| 00003 |
Itab2
| PO Number | Item No |
| 00001 | 00010 |
| 00001 | 00020 |
| 00001 | 00030 |
| 00002 | 00010 |
| 00002 | 00020 |
| 00002 | 00030 |
| 00003 | 00010 |
| 00003 | 00020 |
| 00003 | 00030 |
Data: index1 like sy-tabix.
Loop at itab1 into wa1.
Read table itab2 into wa2 with key ponumber = wa1-ponumber.
Index1 = sy-tabix.
Loop at itab2 into wa2 from index1.
If wa2-ponumber ne wa1-ponumber.
Exit.
Endif.
Endloop.
Endloop.
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