如何在mysql中为datetime字段编写Group By查询

Question

I need to group by only date without time from datetime field in table.What can i do friends?

Here My Table field is,

My Mysql query is,

select *,count(ord_number) as ord from tbl_order_details inner join tbl_users on tbl_users.user_id=tbl_order_details.user_id  where 1=1 group by ord_date order by ord asc

Answer 1

You can do it by DATE()

Example -

group by DATE(ord_date)

Try this

select *,count(ord_number) as ord from tbl_order_details inner join tbl_users on tbl_users.user_id=tbl_order_details.user_id  where 1=1 group by DATE(ord_date) order by ord asc

Answer 2

use DATE() function

select *,count(ord_number) as ord from tbl_order_details inner join 
tbl_users on tbl_users.user_id=tbl_order_details.user_id  where 1=1 
group by DATE(ord_date) order by ord asc