Which of the following SQL techniques is available in ABAP SQL but NOT supported in ABAP CDS?

In SAP ABAP SQL, the ORDER BY clause is utilized to sort the results of a query based on one or more columns. This functionality is indeed available in ABAP SQL and allows developers to present data in a specific order, enhancing the readability and usability of query results.

However, when it comes to Core Data Services (CDS) views in ABAP, the approach to sorting results is fundamentally different. In CDS, the focus is primarily on defining a model that represents data rather than directly querying it in a way that requires sorting. This model-driven approach enhances performance and usability in certain scenarios but does not incorporate the ORDER BY clause as part of its SQL syntax.

Therefore, the ORDER BY clause, while essential in traditional SQL for arranging the output of queries, is not supported in ABAP CDS views, which rely on the model definition and rendering of results based on that model. Understanding this distinction highlights the differences in how data querying is approached in ABAP SQL compared to CDS view definitions.