max(length(field)) in mysql

If I say:

select max(length(Name)) 
  from my_table

I get the result as 18, but I want the concerned data also. So if I say:

select max(length(Name)), 
       Name 
  from my_table

...it does not work. There should be a self join I guess which I am unable to figure it out.

Can anyone please provide me a clue?

SELECT  name, LENGTH(name) AS mlen
FROM    mytable
ORDER BY
        mlen DESC
LIMIT 1

Edited, will work for unknown max() values:

select name, length( name )
from my_table
where length( name ) = ( select max( length( name ) ) from my_table );

Ok, I am not sure what are you using(MySQL, SLQ Server, Oracle, MS Access..) But you can try the code below. It work in W3School example DB. Here try this:

SELECT city, max(length(city)) FROM Customers;

In case you need both max and min from same table:

    select * from (
(select city, length(city) as maxlen from station
order by maxlen desc limit 1)
union
(select city, length(city) as minlen from station
order by minlen,city limit 1))a;

Use:

  SELECT mt.name 
    FROM MY_TABLE mt
GROUP BY mt.name
  HAVING MAX(LENGTH(mt.name)) = 18

...assuming you know the length beforehand. If you don't, use:

  SELECT mt.name 
    FROM MY_TABLE mt
    JOIN (SELECT MAX(LENGTH(x.name) AS max_length
            FROM MY_TABLE x) y ON y.max_length = LENGTH(mt.name)

max(length(field)) in mysql

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