Question

I need a little help here with a query. I want to count from a result set duplicate ip’s and put that together with a username.

the origional result set is

Name | IP
--------------
Bert | 192.168.1.1
Bert | 192.168.1.5
Laura| 192.168.1.2

and I want this:

Name | IpCount
--------------
Bert | 2
Laura| 1

My query so far is:

select ips.userName, COUNT(ips.userIP) as cnt 
from (select u.userName, u.userIP from 
users) as ips
group by ips.userName, ips.userIP

But that gives me the wrong counts, can somebody help me?

EDIT:

I used the word duplicate, but it should be: different. Sorry folks.

Answer 1

Assuming your example has a typo and you mean

Name | IP
--------------
Bert | 192.168.1.1
Bert | 192.168.1.1
Laura| 192.168.1.2

and your table is named Users. This query should do

select Name, COUNT(IP) as cnt 
from users
group by Name

Update

as pointed out by @Andriy M this query should do

select Name, COUNT(distinct IP)
from users
group by Name