SAP ABAP programming model for building state-of-the-art, intrinsically SAP HANA-optimized Fiori apps in SAP S/4HANA and possibly played around with it, however you are still on SAP Business Suite – ideally on SAP HANA. This is the circumstance for most by far of SAP's clients and accomplices at the present time in 2017, however eventually they will connect with the Digital Core, that is SAP S/4HANA!

Introduction

The new ABAP programming model has been introduced with the ABAP release 7.50 SPS01, first just supporting the advancement of read-only Fiori applications, and afterward progressively upgraded and enhanced with the accompanying ABAP releases.

The new ABAP programming model depends on demonstrated innovations, for example, Core Data Services (CDS) for the information displaying and get to, OData protocol for the administration presentation and the business question preparing system for the value-based transactional processing.

Need of SAP ABAP Custom Program

Since HANA uses a different underlying architecture, there would be some impact to the custom ABAP Code. 

What is HANA DB?

It's little area to describe what is HANA DB. Be that as it may, at an abnormal state, these are distinctive changes in HDB contrasted with different DBs:

Column based database – Data is put away by Columns rather than rows

Data is put away utilizing the numeric keys - Numeric keys with Key esteem mapping tables for each character field gives the speedier information determination.

- Inbuilt Parallel preparing

- No requirement for Secondary files.

In this way, a significant number of the SAP long time (and clearly here and now) Customers are discarding their current DB for HANA DB. Take a profound jump on what necessities to occur prior and then afterward, and what ought to occur after that.

ABAP Custom Programs and HANA

Above all else, we would need to ensure that the custom ABAP programs can work on HANA DB. It isn't the compilation error, yet rather mistakes from the usefulness point of view. For this reason, SAP has given this variation in Code inspector(SCI). We should take all the custom protests, and run these two checks.

• FUNCTIONAL_DB
• FUNCTIONAL_DB_ADDITION

ABAP Custom Program for HANA

A. Variant FUNCTIONAL_DB

These are diverse checks would be performed:

1. Finding Native SQL

2. Database (DB) hints

3. Finding ADBC (ABAP Database Connectivity) Usages

4. Finding utilizations of uncommon DDIC work modules that check or restore the presence or specialized properties of certain DB indexes.

5. Finding accesses to technical pools/groups of a pool/bunch table

6. Finding non-robust ABAP code that depends on non-ensured/implicit arranging of certain SQL inquiries, albeit no ORDER BY provision is utilized. There are two unique checks accessible for discovering non-strong ABAP code:

- “Search problematic statement…w/o ORDER BY”

- “Depooling/Declustering: Search for…w/o ORDER BY"

B. Variation FUNCTIONAL_DB_ADDITION

These extra checks expansion to Functional DB checks.

1. Checking SQL Operations without a WHERE Clause

2. Checking SQL activities with the expansion FOR ALL ENTRIES IN , whereby in the code itself it isn't guaranteed that the inside table < itab> is constantly filled.

3. Checking settings in DDIC tables for consistency. Specifically, this checks whether table cradle settings have been kept up in a steady way (effect on execution).

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