用值1更新表字段值

Question

I'm having a table of users positions, like position 1,2,3,4,5 . Now when any user leaves, I will delete that row and I need to update other users position with -1 .

eg:

If position 2 user leaves, I need to change positions like 3 to 2 , 4 to 3 , 5 to 4 , etc.

Is there any function in mysql that i can use for this type of update?

Answer 1

这样的事情可能会起作用...

update users set position = position-1 where position > 2