Hello, Is there a way to generate a column which computes a value from other columns in the same query? For example, I want to do something similar to:
SELECT MIN(table.myvalue) as min, MAX(table.myvalue) as max, min/max as derived_column FROM table ORDER BY derived_column ; But MySQL doesn't like the references to the "min/max" aliases in the computation of the "derived_column" column. Is there a way to directly refer to the values generated by other columns in this manner? The example I gave is trivial, and theoretically I could generate "derived_column" with "MIN(myvalue)/MAX(myvalue)". But in practice, I'd like to use this to refer to columns which generate values from much more complex expressions. Thanks in advance, -- Dan
