In this post I would like to consider a very important authorization aspect of ABAP CDS views. For each CDS view we have to define an access control using DCL. For the demonstration cases I’m using S/4HANA 1610 on NW 7.51. There are 5 parts in this post: Part I. Standard demo access control examples […]
Recently I learned a new approach to access database table content without having to transport the column data into ABAP program using locator. I make modifications on this sample. The modified one: REPORT demo_db_locator. DATA: otr_text_locator TYPE REF TO cl_abap_db_c_locator, length TYPE i. DATA: pattern TYPE string VALUE ‘ABAP’, lv_index TYPE int4 VALUE 1. zcl_abap_benchmark_tool=>start_timer( ). […]
Motivation Most ABAP applications use polling techniques to achieve an event-driven communication.For pushing an event from an ABAP backend to a browser based user agent like SAPUI5, Web Dynpro, Business Server Pages (BSP) or WebGUI, a polling in multi-seconds interval is frequently used. This is a quite system resource consuming technique. In SAPGUI usually the […]
I use this small blog to help my new colleagues on board who have Java programming background to understand the hello world example written in ABAP. Hello World example in Java The following example could be done in pure text editor without Java IDE. You should have JDK installed as prerequisite and corresponding environment variable […]
Mockito is a mocking framework, JAVA-based library that is used for effective unit testing of JAVA applications. In our unit test there are usually some dependency on other external service implementation for example network or database service. Usually in order to isolate our test code from these dependencies we have to create mock class against […]
Most of us would have wondered, why can’t we use the ABAP programs/reports in any of the BOBJ reports. During my course of work, I faced a similar challenge. To derive a BOBJ report, I need to replicate the same ABAP program into a BEX Report or a HANA VDM, which is expensive with respect […]
Now ABAP table COMM_PRODUCT is successfully replicated to PostgreSQL. In my ABAP server table COMM_PRODUCT has totally 94331 entries: Execute the report below: REPORT zexport_data. DATA: lt_export TYPE string_table, l_filename TYPE string, l_path TYPE string, l_fullpath TYPE string, lv_from TYPE string, lv_to TYPE string, lt_result TYPE TABLE OF comm_product. SELECT * INTO TABLE lt_result FROM […]
Do you know that on average 60% of your custom code is in reality not executed in your productive landscape? Especially in SAP Business Suite migration projects like to SAP HANA or SAP S/4HANA such amounts of unused code result in huge adaptation efforts. Therefore SAP’s recommendation is to clean up your unused custom code […]
SAP introduced the concept of OO programming in ABAP in the year 2000. Since then, it’s been the recommended method of programming. Let’s describe the new features of ABAP that relate to OO programming. 1. Upcasting/Downcasting with CAST In OO programming, a downcast is a process in which you turn a generic object, like a […]
I am the trainer of one standard course “Programming Language Concept” within SAP and there is a set of concept Covariance and Contravariance, which has only built-in support by a subset of programming language like Java. For those ABAPers who don’t have chance to touch this concept in their daily work, I have built a […]
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