SELECT INTO TABLE is much more efficient than SELECT ... ENDSELECT. SELECT INTO TABLE needs more memory to
hold the result set, but in normal situations, this is not a concern. When memory is a concern, the result set can be divided into smaller sets.
Noncompliant code example
SELECT * FROM T006 INTO X006_WA.
...
ENDSELECT.
Compliant solution
SELECT * FROM T006 INTO TABLE X006.
LOOP AT X006 INTO X006_WA.
...
ENDLOOP.
