Posted by [IP Address: 205.188.198.167] 'KeithS' on September 13, 2001 at 18:15:34 EST:
In Reply to: Learning curve from R/3 to R/2 posted by [IP Address: 205.188.198.167] 'Timothy Clo' on September 12, 2001 at 17:22:52 EST:
Timothy,
Martin said it as well as it could be put, but I will express my thoughts anyway.
To work in the R2 environment you must have mainframe skills. MVS, TSO, JCL, DB2/CICS and possibly IMS. You should plan on throwing away the mouse, drill down menus and all the fun GUI stuff too.
Years ago I was hired onto an R2 to R3 conversion project where the R3 folks had none of the above skills and therefore could not develop code to extract the data from R2. The system happened to be one of the rare IMS R2 systems so we also had to deal with DBA related items such as building DBDs and PSBs for the new programs.
Your basic ABAP logic will be very similar although you will need to become familiar with the database access methods such as using logical databases and the 'GET' statement in your ABAP code. You will find that there is no programming assistance such as 'drag and drop' and easy to use menu painters, so all your screen processing will have to be developed by you.
If you have experience with these mainframe tools then you should not have any problem converting back otherwise you should find a mentor that you can rely on for help.
Best of Luck
Keith