group by range in mysql

Question

Table:   
new_table                                                    
user_number  | diff                  
     2       |  0                      
     1       |          


        

Answer 1

One obvious mistake : Mysql uses backticks(

`

), not [](as sqlserver) . Change t.range as [range], count(*) as [number of users] to

t.range as `range`, count(*) as `number of users`