Question

I have been asked to find the minimum age in each rating from a table, which looks like this:

table name: 'SAILORS' 
fields: 'SID', 'SNAME', 'Rating', 'Age**'

This can be done using PHP, but I have to do this using a MYSQL Query.

Answer 1

A group by over Rating column and min function call will do it.

SELECT Min(`Age`)  AS `Lowest Age`, 
       `Rating` 
FROM   `SAILORS` 
GROUP  BY `Rating`