MySQL Query to Count Unique Domains from Email Address field

Question

I\'d like to get a better idea of what domains my customers are using. I could easily do this in PHP by explodeing each address and counting the domain that way

Answer 1

select distinct SUBSTRING(Email, CHARINDEX('@', Email) + 1,LEN(Email) - CHARINDEX ('@', Email)), Count(*) from Tbl_name
Group by SUBSTRING(Email, CHARINDEX('@', Email) + 1,LEN(Email) - CHARINDEX ('@', Email))
order by Count(*) desc