Question

Newbie SQL Query question:
I’m using Oracle SQL Developer.

I have a table:

<name>  <color>
steve    red
mark     red
steve    green
john     red
ryan     red

What I would like to do is have the results only display the names that contain RED in the color column.
The results would be:

     mark
     john
     ryan

Since steve has a color green as well, it would not show up.

Anyone out there knows?

EDIT:
THANK YOU FOR THE ANSWERS. I do see that I should have said “red and no other color” in the results. Sorry for the confusion but thank you for the super speedy replies!

Answer 1

You will just query with a WHERE clause and a NOT IN.

SELECT name
FROM yourTable
WHERE color = 'red'
   AND name NOT IN (
                    SELECT name
                    FROM yourTable
                    WHERE color <> 'red'
                )

see SQL Fiddle with Demo

Or you can use WHERE with NOT EXISTS:

SELECT name
FROM yourTable t1
WHERE color = 'red'
   AND NOT EXISTS (
                    SELECT  t2.name
                    FROM yourTable t2
                    WHERE  t2.color <> 'red'
                     AND t1.name = t2.name
                )

see SQL Fiddle with Demo