By Hermann Gahm
See how SAP HANA has replaced ABAP! even if you re learning for certification or simply are looking to see what s new, you could discover ways to layout uncomplicated and complicated SAP HANA purposes with ABAP through the use of this accomplished advisor. discover ways to let code pushdown, use new Open SQL improvements and CDS perspectives, and combine local SAP HANA gadgets. Use designated programming examples to improve database strategies and optimize your purposes. Youll be programming for SAP HANA very quickly!
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Extra info for ABAP Development for SAP HANA
Example: Avoiding many individual SQL statements (such as in a loop) is now more important than in the past. At the same time, new guidelines will help you to create several alternative implementations of a modularization unit so that a program can be run optimally, for example, both on the SAP HANA database and on traditional databases. ABAP developers should be familiar with those new guidelines as well. Details on all of these guidelines can be found in Chapter 14. 62 ABAP development for SAP HANA is closely linked to SAP’s latest development tools, which are based on the Eclipse platform.
59 Open SQL 1 Overview of SAP HANA Native SQL In addition to Open SQL, Native SQL can also be used. With Native SQL, you can use database-specific operations that are not supported by Open SQL. However, the disadvantage of Native SQL is that programs using database-specific operations cannot be run on all database systems supported by SAP. This is probably the reason why you only used Native SQL and database-specific operations in exceptional cases in the past. The database was usually a black box, or a closed system with an internal structure that did not need to be considered.
This value is then stored only once together with the number of its occurrences. SAP HANA analyzes the data in a column and then automatically chooses one of the compression techniques described. 5 presents a typical application case for each compression technique. 5 Overview of Compression Techniques 47 Automatic selection of the compression technique 1 Overview of SAP HANA Read-optimized main store The memory structures presented so far (consisting of sorted dictionary vectors and attribute vectors with integer values), which might still be compressed in some cases, are optimized for read access.