Question

I have the following query

SELECT  id AS "CLIENT CODE",name AS "CLIENT NAME",(
                            SELECT
                                count(status)
                            FROM
                                campaigns
                            WHERE
                                clientid = clients.id
                            ) AS "TOTAL CAMPAIGNS"
FROM    clients
WHERE   id IN
        (
        SELECT  clientid
        FROM    campaigns
        WHERE   status IN ('L', 'P')
        )
        AND id NOT IN
        (
        SELECT  clientid
        FROM    campaigns
        WHERE   status NOT IN ('L', 'P')
        );

Now I have a clients table with all clients and a campaigns table with a status column that contains values of either L,C,P,?,X. Now one client can have 1 or more rows from campaigns. So with other words a client can have more than one campaigns with status values assigned to a campaign. Of either L,C,P,?,X

What I want the query to return to me is clients with campaigns where the status is L and P and not only P and not only L but both L and P. At the moment the query returns client that either have P or L or both.

Answer 1

This should ensure that it has both

WHERE   id IN 
        ( 
        SELECT  clientid 
        FROM    campaigns 
        WHERE   status IN ('L') 
        ) 
    AND id  IN 
        ( 
        SELECT  clientid 
        FROM    campaigns 
        WHERE   status IN ('P') 
        ) 

Or even try Subqueries with EXISTS

WHERE   EXISTS
        (
        SELECT  clientid 
        FROM    campaigns 
        WHERE   status IN ('L') 
        AND     clientid = client.id
        )    
    AND EXISTS
        (
        SELECT  clientid 
        FROM    campaigns 
        WHERE   status IN ('P') 
        AND     clientid = client.id
        )