How can I do a count distinct in sqlite?

Question

I have a table:

ref,type
1,red
2,red
3,green
4,blue
5,black
6,black

I want the result of a sqlite query to be:

red,2
green,         


        

Answer 1

A quick google gave me this: http://www.mail-archive.com/sqlite-users@sqlite.org/msg38339.html

select type, count(type) from table group by type;

Answer 2

My quick google with the terms "count unique values sqlite3" landed me on this post. However, I was trying to count the overall number of unique values, instead of how many duplicates there are for each category.

From Chris's result table above, I just want to know how many unique colors there are. The correct answer here would be four [4].

This can be done using select count(DISTINCT type) from table;