Question

I don’t now much about SQL queries, I have a problem

SELECT PERSON_REF 
FROM   IMAGES 
WHERE  PERSON_REF IN (SELECT _PERSON_ID 
                      FROM   PERSONS 
                      WHERE  REGION_REF = (SELECT _REGION_ID 
                                           FROM   REGIONS 
                                           WHERE  REGION_ABB = "EU")) 
GROUP  BY PERSON_REF 
HAVING Count(PERSON_REF) >= 3 

this query gives my result like

2  
4  
5  
6  

Now I want to use that result in an other query, how to do that, Do I need to create loop or is there any other way

SELECT PERSON_REF 
FROM   IMAGES 
WHERE  EFFECT_REF = 2 
       AND PERSON_REF IN ( 2, 4, 5, 6 ) 

Answer 1

try this:

select Person_Ref from Images where Effect_Ref = 2 and Person_Ref IN 
( your first query which gives 2 4 5 6)