sql - Select MAX INT value of TEXT column - 


userid    username  password  1                abc               123 10               xyz               456 3                mno               254  select max(userid) userid userlogin

when run query gives me 3 instead of 10

all columns text datatype

your query returning 3 because larger value considering lexicographic order (anything starting 3 considered greater starting 1, starting b greater starting a).

use val function convert text columns numeric values: 

select max(val(userid)) userid userlogin

if you're concerned performance, should make column numeric, though. take account you're calling function every row in table. also, won't using indexes column may have.


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