A client wants to show 20000 list item in a single page report for SP 2013 on-prem application and for ordinary user. Restriction is you cannot increase threshold value, you cannot use iteration since you have to show all 20K data at a time.
Generally this will create trouble in the server (slowing down the server). How to overcome this?
How to show all 20K list item at a time in a single page report?