Mainframe, MVS and zOS Discussion

Hi,

This is an interview question which I faced: A COBOl-DB2 program executing successfully currently and does what it should. If we need to add or delete a column in one of the tables and that table is used in this application COBOL program. What steps I need to take care about to make the program working clean again? Or do you think the program will still run fine, without any changes? Can any one please help what I need to do?

Regards

After search I understand that I need to see if there are variables from table which are impacted in the program or not. And program should be compiled again.

Are there more steps needs to be done or these should be good enough. Please let me know.