选择最大值在 MySQL 中返回错误值

Question

I have above table and I want to get the highest value from table bids where bid_id=60 using the following query

SELECT MAX(offer_amount) as maz FROM bids WHERE bid_id = 60

The problem is I'm getting the result as 80 in instead of the correct value which is 7000000

Anybody with an idea of how to solve this?

Answer 1

Store offer_amount in a numeric field (such as integer or decimal), not as text. Quick solution is to use the CAST() function in the query to cast the field's data type to a numeric one.