mysql - 使用 varchar 中的日期对日期进行排序，在使用 MM/DD/YYY 转换为日期时间时出现问题

Question

目前“xl_date”有日期 MM/DD/YYYY 的日期时间转换有问题

示例查询:-

SELECT orders.*, 
  customer.id AS userid, 
  customer.login, 
  convert(datetime, orders.xl_date, 101) as ddates 
FROM orders 
LEFT JOIN customer 
ON orders.userid = customers.id 
WHERE 1 
ORDER BY ddates DESC LIMIT 0, 30

Answer 1

您需要使用 STR_TO_DATE功能。例如-

SELECT STR_TO_DATE(orders.xl_date, '%m/%d/%Y') AS as ddates FROM orders

您的查询是-

SELECT
  orders.*, 
  customer.id AS userid, 
  customer.login, 
  STR_TO_DATE(orders.xl_date, '%m/%d/%Y')as ddates 
FROM orders 
  LEFT JOIN customer 
    ON orders.userid = customers.id 
WHERE
  1 
ORDER BY
  ddates DESC
LIMIT 0, 30