获得最多的产品

Question

The goal

I want to make a ranking and I need to get the 10 firsts of a column.

The problem

There's the following table within my application:

+------+---------+
| User | Product |
+------+---------+
| 1    | 1       |
+------+---------+
| 2    | 1       |
+------+---------+
| 3    | 1       |
+------+---------+
| 4    | 1       |
+------+---------+
| 5    | 2       |
+------+---------+
| 6    | 2       |
+------+---------+
| 7    | 2       |
+------+---------+
| 8    | 3       |
+------+---------+
| 9    | 3       |
+------+---------+

And I want to make a ranking following this pattern:

+---------+----------+
| Product | Quantity |
+---------+----------+
| 1       | 4        |
+---------+----------+
| 2       | 3        |
+---------+----------+
| 3       | 2        |
+---------+----------+

How can I do this?

Answer 1

You can do this:

SELECT product, COUNT(product)
FROM yourtable
GROUP BY product
ORDER BY COUNT(product) DESC
LIMIT 10;

Answer 2

Something like this should do it.

SELECT TOP 10 Product, COUNT(*)
FROM Table
GROUP BY Product
ORDER BY COUNT(*) DESC;