Question

There is the issue with datetime conversion currently “xl_date” have date MM/DD/YYYY

Example query:-

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

You need to use STR_TO_DATE function. For example –

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

Your query is –

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