How to check whether it is BW4 system?

This post is similar to one of my previous post called How to check whether HANA or BWA are available? In which I created small ABAP program to determine whether particular SAP system is running on HANA DB or whether BWA is available in the system.

Similarly, to that one in this post I try to determine whether particular SAP ABAP Platform bases system is running BW4 or not. So, it does distinguish between for example just classic BW and BW/4HANA based systems.

The ABAP code fragment is published on my github’s gists place - ZMM_GET_BW_RELEASE_INFO.

The program itself is based on standard SAP program's /SSA/BWT and routine GET_BW_RELEASE_INFO. In case the system is BW4 (component DW4CORE is available) based then it, returns variable lv_ISBW4HANA set to value X. In case it is not, (e.g. it is classic 7.x BW based system) it returns variable lv_BWRELEASE containing the BW release (SAP_BW), e.g. 740 and variable lv_BWSP that contains the BW support package, e.g. 7. The program reads the data from standard SAP table CVERS – that holds an info on release status of software components in System.