Get Example source ABAP code based on a different SAP table
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ABAP and SAP HANA SAP HANA is a platform, independent from AS ABAP, used for high-performance analysis of large volumes of data. SAP HANA works with the 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.
Furthermore, an SAP HANA database can be used as the standard AS ABAP database. The database tables and other AS ABAP objects managed by the ABAP Dictionary are then stored in the ABAP database schema. Database tables of this type can be accessed using AB_SQL , Native SQL or AMDP. Compared with ABAP programs, the SAP HANA databases then behave in the same way as a regular relational database. All HANA-specific functions are wrapped by the database interface and access is optimized as far as possible. It also enables access to the special database objects SAP HANA views and database procedures written in SQLScript. 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 AB_SQL or in ABAP CDS. If the anchor methods in AB_SQL 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:
Modeling of SAP HANA views transformed internally to HANA-specific SQL or SQLScript.
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 SQLScript. This programming can be done as follows:
In SAP Web IDE for SAP HANA
As ABAP Managed Database Procedures in special methods of ABAP classes
Using Native SQL methods (usually ADBC)
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:
ABAP-specific session variables in SAP HANA
Cached views in SAP HANA.
Logical schemas for SAP HANA
Settings transaction attributes for SAP HANA
Data aging in SAP HANA
Access to objects in SAP HANA XS In addition to these methods, Native SQL methods can be used to access all accessible objects in the SAP HANA database.
Latest notes: SAP HANA views cannot be created using Native SQL, since the description language is XML-based, not SQL-based. ABAP_HINT_END
