Query to list city with most customers

Azim Fahmi, Senior Systems Analyst, ESPN

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?

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select city, count(cust_id)
  from customer
        group by city
        having count(cust_id) = (select max(count(city))
      from customer
                                 group by city)
 
 



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This was first published in October 2004

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