I have a table with 2 different price columns. One is a special price for a different currency. Sometimes that column is blank. Is there a way to properly sort the query on both columns together? I don't mean order by price1, price2. I want to sort them as if they were the same column. Also is there a way to sort this with the one column multiplied by a conversion rate? In a perfect world my syntax would be: order by price1 and (price2 * conversionrate)