Exclude no others is the optional clause for the default behaviour to keep all rows as defined by the frame:
SELECT SUM(x) OVER(ORDER BY val ... EXCLUDE NO OTHERS)
FROM ...Related
Other frame exclude options: current row, group, ties
Tutorial: Window Frame Exclusion
Other forms:
windowclause
Normative References
The exclude clause in window definitions—both, in over and window clauses—is defined in ISO/IEC 9075-2:2023 as part of optional feature T612, "Advanced OLAP operations".
