[ABAP] OpenSQL: numerische Funktionen

* DEMO_SQL_EXPR_ARITH

* Funktionen:
*   abs
*   ceil
*   div
*   divison
*   floor
*   mod
*   round

Links

• https://help.sap.com/doc/abapdocu_latest_index_htm/latest/en-US/index.htm?file=abensql_arith_func.htm
• https://www.cadaxo.com/high-class-development/neue-open-sql-features-ab-abap-7-40-sp8/