如何在没有IN关键字的情况下重写此查询？

I wrote this query :

我写了这个查询:

SELECT * 
FROM etape_prospection INNER JOIN type_prospection 
ON etape_prospection.type_prosp_id = type_prospection.type_prosp_id 
WHERE etape_prospection.prosp_id IN (select transfert.prosp_id 
                                     from transfert 
                                     where transfert.user_code ='3' 
                                     AND transfert.date_transfert='2012-01-20');
SELECT * 
FRO