mysql多个where条件

Question

I want to search for the all id of table 'szenarien' where sprache='DE' and sprache='EN'. Unfortunately it will not found any result. I tried a lot with GROUP BY and HAVING but had no success. Can anybody help me, please. Thanks a lot.

SELECT DISTINCT 
   szenarien.id,sprache.sprache 
FROM szenarien 
   LEFT JOIN sprache ON sprache.szenarien_id = szenarien.id 
WHERE sprache.sprache = 'DE' 
  AND sprache.sprache = 'EN'

Answer 1

SELECT szenarien.id
FROM szenarien 
LEFT JOIN sprache ON sprache.szenarien_id = szenarien.id 
WHERE sprache.sprache in('DE', 'EN')
GROUP BY szenarien.id
HAVING COUNT(distinct sprache.sprache) = 2