CDS based Analytical oData for Fiori

During my developments I found that analytical oData services (or maybe to be more precise "analytical entitysets" within oData services) are needed quite often but it's not very well documented what options can be used to create them. In most of the official literature you will find oData generated on top of "analytical query" but this option is not supported in Restful ABAP programming model and makes some stuff (like adding additional entitysets in the same service) difficult.

As a first thing let's explain "analytical oData" on a very simple example and probably most common scenario: you have some kind of document item which has for example Supplier, Company Code, Fiscal Year, Amount with Currency code and Quantity with Unit. And you perhaps need to get the "sums" of amounts and quantities on different levels

Implementation of $Batch Processing in the Odata with CDS

The topic is ‘$Batch operation on the Gateway Services with CDS’. In Odata, generally we use deep entity method for implementing table or header-item relationship. But sometimes we do not want to implement deep structure methodology, we want to send data in just one request or try to do different thing.

This blogpost will explain details of Odata implimentation ’$Batch Processing’ step by step.

First topic is the reason of why we use $Batch method, Aim of the Odata Batch method is send several request in just one HTTP request. It helps us to use; get or put or post (etc.) methods in a parallel. This is very effective method for computing.

How to use the latest SAPUI5 library for the Fiori Elements preview in ADT?

When using the RAP Generator it is necessary to use the latest version of the SAPUI5 libraries.

Please note:

If you don’t have the latest version of the SAPUI5 libraries installed you will get no dialogue asking you for the name of the root entity and for the name of the package when pressing the New Project button in the RAP Generator.

While this is automatically ensured when using a SAP ABAP BTP Environement system (aka Steampunk) in on premise systems the classes that are called when using the Fiori Elements preview will use the locally installed SAPUI5 version instead. Since I am testing my RAP Generator in various test systems where the latest SAPUI5 version was not deployed I thought about a workaround.

Easy way to write data via a deep entity in OData

Introduction

I have seen many tutorials based on OData but I really found them complex for beginners.

So, I am writing this blog post for quick easy reference. This is the 2nd blog post in the series.

For the first post please check the Easy way to read data via a deep entity in OData.

Easy way to read data via a deep entity in OData

Introduction

I have seen many tutorials based on OData but I really found them complex for beginners.

So, I am writing this blog post for quick easy reference.

Solution

Please follow the steps: