MySQL计数具有相同值的行数

Question

I have in my table 3 rows. 2 of them with the same value (valueA) on field status and the 3-rd one with another value (valueB).

What i want to do is to display a message to show me how many rows with the same value exists. Example below:

EX: There are 2 status value in the database There are 1 status value in the database

How can i achive that? Thank you.

Answer 1

You need group by and count

 select your_column_name, count(*) from your_table 
 group by your_column_name;

in your case assuming status is th column name

select concat("there is " , count(*), "  status in your db") from your_table
group by status;

Answer 2

You have to use group by , you can learn more about GROUP BY here

In your case query would look something like:

SELECT *, COUNT(*) as `total`
FROM <table>
GROUP BY `status `