ITPub博客

In previous blog Fiori and CRM WebClient UI – Stateless and Stateful, but how? I have researched how stateful and stateless BSP application are handled in ABAP server side. In this blog I wi

The concept of Fibonacci Sequence or Fibonacci Number is widely used in many programming books.It could be defined via the formula:F(0)=1，F(1)=1, F(n)=F(n-1)+F(n-2)In ES5In ES6 there is a fe

According to Wikipedia Lazy loading is a design pattern commonly used in computer programming to defer initialization of an object until the point at which it is needed. It can contribute to

As I mentioned in my blog My CDS view self study tutorial – Part 11 CDS view test double framework, we develop CDS view on top of various database table, and CDS view test double framework extrac

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 JavaThe following example cou

IssueOnce product hyperlink in sales order line item is clicked, it is expected that product overview page is opened.Instead the empty screen is displayed now:Most efficient way to find root cause Fol

Recently I am working in a project and the prerequisite is to understand how table CRMD_CUMULAT_H works. As I could not find enough material in SCN, I make some self study on it and list my learning i

In one of my previous blog A small tip to analyze code by code and export to markdown format it is introduced that the following header extension are supported in One order read function mod

标题：SAP CRM One Order函数CRM_FILL_OW的设计原理 There are totally 60 function modules in One order with naming convention CRM_FILL_OW:They are NOT used in read scenario but in modify scenario. For example once

Use the naming convention CRM*CHANGE_OW to search in SE37 and there are totally 92 function modules found in my system.Still use the same scenario ( change Closing Date in Opportunity header ) to rese

In previous blogs the READ and UPDATE logic of Opportunity header field Closing Date are explained:Buffer logic in One Order header extension read Logic of FILL_OW function module in One Order Logic o

In the previous series of blogs the read and update on Opportunity header fields are discussed. In this blog another scenario will be explained: create scenario on Opportunity header fields. I will ag

这些字段为：CHANGED_AT, HEAD_CHANGED_AT和CRM_CHANGED_ATHave a look at Order header table CRMD_ORDERADM_H and you can find there are three different times. When, where and how is each populated?CHANGED_ATTher

In Logic of CRMD_CUMULAT_H I learned the fact that gross weight of an order is calculated based on all its line item. Recently in my project I have the requirement to modify the gross weight

In my previous blog How many fat interfaces are there in SAP system I introduce the concept of “fat interface”. In this blog let’s explore the concept of tag interface. There is definition f

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 programmin

There are already blogs in SCN which introduce how to implement a custom check in ABAP code inspector or ATC check. For example this blog Code Inspector – How to create a new check from Pete

For project reason I need to figure out the logic how fields in index table CRM_ORDER_INDEX are updated. For example, I have an opportunity with ID 21 and closing date 2017.03.25.I get its guid 6C0B84

When I first begin to program with ABAP I get confused with different kinds of integer type available for ABAP developers: i, int1, int2, int4, and int8.According to ABAP help, predefined data types c

Local class in ABAPSuppose I have a global class with a public method ADD with following signature. I would like to implement with a local class inside this global class.The local class could be creat