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ABENABAP_HANA - ABAP HANA

ABENABAP_HANA - ABAP HANA

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ABAP and SAP HANA

SAP HANA database, which is based on in-memory technology.

  • AS ABAP can access the SAP HANA database of a standalone SAP HANA appliance (combined hardware and software system) using a secondary connection and, for example, ADBC. Various tools and accelerators are available for replicating data from the database of an AS ABAP to the SAP HANA database to enable high-performance analyses.

To exploit the in-memory properties of the SAP HANA database in an optimal way, however, application logic must be passed in a suitable form from AS ABAP to the SAP HANA database. This can be done, for example, using suitably programmed joins or using SQL expressions in or in ABAP CDS. If the anchor methods in or ABAP CDS are not sufficient, parts of the application logic must be programmed separately under SAP HANA XS in a tool such as SAP Web IDE for SAP HANA. The following methods are available, with complexity increasing from top to bottom:

  • Attribute views - Selected columns of joins between tables. Attribute views are created in a graphical tool and transformed internally to SQL.

  • Analytic views - A combination of table data and aggregated data from one or more tables. Analytic views are created in a graphical tool and transformed internally to SQL.

  • Calculation views - A combination of table data or data from other views in which complex conditions and calculations are possible. Calculation views are either created in a graphical tool and transformed internally to SQLScript or can be programmed using SQLScript.

  • Programming of dedicated database procedures in L. This programming is only allowed internally at SAP and not for customers and partners.

The SAP HANA XS framework is available for development of HANA objects. Here, the current SAP HANA XSA must be distinguished from its predecessor, SAP HANA XSC. The XSC objects are intended for migration to XSA.

The following sections show specific methods that can be used when accessing objects of the SAP HANA database from ABAP programs:

In addition to these methods, Native SQL methods can be used to access all accessible objects in the SAP HANA database.

Note

SAP HANA views cannot be created using Native SQL, since the description language is XML-based, not SQL-based.






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