HOW to find the avg difference in order time in SQL

后端未结

关注

 0  1299

the dataset of subquery is here

id   itm_id   paid_at          ord_r total_r
17  3266    2013-05-25 08:27:17 1   3
17  3219    2013-05-25 08:27:17 2   3
17  3964


                      
              相关标签: