Q

Query to list city with most customers

I have one table called customer (cust_id,name,address,city). I want to write a query for this table to list the city name that has got the maximum number of customers and also to list the number of customers. Can you help me out?
select city, count(cust_id)
  from customer
        group by city
        having count(cust_id) = (select max(count(city))
      from customer
                                 group by city)
 
This was first published in October 2004

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