Remind me of a task management service?

Question

Project management

A few years ago, I came across a project in which tasks could be built in the form of a tree, assign users. Until the task "above" is completed, you cannot proceed to the next one

Answer 1

update tbl1 set tbl1.content = tbl2.content
from
tbl1 inner join tbl2 on tbl1.title = tbl2.title
if join over tables returns more than 1 result, it will set the last value