SQL query for Calculating Total No. of Orders per Day?

Question

Can anyone post a SQL query for Calculating Total No. of Orders per Day?

Here are the Columns along with their data in my Database.

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order_id            


        

Answer 1

A group by is your friend here. It can aggregate on grouped rows. An example query would be:

SELECT order_placed_date, SUM(order_total)
  FROM orders
 GROUP BY order_placed_date

Of course, in your example you'd probably want to extract just the day/month/year part using the DATE() function, and group by that.