Thank you for your supplement. Except for the chapter on computer retrieval, other chapters of information retrieval are basically theoretical and relatively simple.
Introduction to Information Management involves programming in the chapter of Information Management System, but you are not required to be able to program, as long as you know how to analyze and design the system and know the implementation process and maintenance methods of the whole system.
Generally speaking, you just need to know what programming is all about. There is no need to go further.