i used from sample code for creating user table in my data base in my sample project.

and my project in this state is ok and run but if i chnge one name in user table for example  jone  to mojde in work item list this name not is changed and on the top of right corner of work item list instead of mojde smit is desplaied jone smit

i want to know for changing information of user i must change  which table of data base( please suppose my data base is same as  sample data base of skelta)

best regards.