Question

I have a table like

CREATE TABLE sales
    (`id` int, `date` date, `amount` int(4))
;

insert into sales values (1, '2012-09-01', 200),
                         (2, '2012-09-01', 300),
                         (3, '2012-09-02', 400),
                         (4, '2012-09-02', 500),
                         (5, '2012-09-02', 600)

I wish to retrieve a row showing the sales for today, and the sales for yesterday

like

Date             Today Total sales   Yesterday Sales
2012-09-02       1500                500

Tried using something like

SELECT id, date, sum(amount) FROM sales
GROUP BY date;

But it returns the sales day wise. I understand that can be done programmatically, but is there a better way to directly retrieve it from the DB?

sqlfiddle

Answer 1

SELECT id, date(now()) as `date`, 
      SUM(IF(date(`date`) = date(now()), `amount`, 0)) as TodayTotalSales,
      SUM(IF(date(`date`) < date(now()), `amount`, 0)) as OtherDaySales
FROM sales;

http://sqlfiddle.com/#!2/0ef6a/18