Get Example source ABAP code based on a different SAP table
Internal Tables in ABAP Release 7.40, SP08 ITOC
ABAP_MODIFICATION_NN Groupings>
A new variant LOOP AT itab ... GROUP BY>> of the statement LOOP AT itab> > enables the lines in an internal table to be grouped and then the groups evaluated in a group loop>. The new statement LOOP AT GROUP>> for member groups> is used to access the lines in a group. The new variants FOR GROUPS ... OF>> and FOR ... IN GROUP>> in an iteration expression> for table iterations> using FOR>> can be used to perform the same groupings (and evaluate them) in table comprehensions> and table reductions> as well. The new options for grouping internal tables exist alongside the existing group level processing > functions and can replace them in many cases.
ABAP_MODIFICATION_NN Expressions for Internal Tables>
The following new aspects of expressions> apply in particular to the processing of internal tables:
Custom iteration expressions> in constructor expressions using NEW>> and VALUE>> for creating internal tables.
Table reductions> with the new reduction operator> REDUCE>>.
Table filtering> with the new filter operator> FILTER>>.
LINES OF>> for specifying lines in the constructor operators NEW>> and VALUE>> .
Default value OPTIONAL>> or DEFAULT>> for table expressions>.