>SELECT t1.* FROM mytable t1 > WHERE 2 = (SELECT COUNT(*) FROM mytable t2 WHERE t2.Artnum = t1.Artnum AND t2.Catnum IN ( 'INT', 'ISR')) > >>
>>Artnum Catnum >>111 INT >>111 ISR >>111 GRP >>222 INT >>222 RSA >>222 GRP >>>>
>>111 INT
>>111 ISR
>>111 GRP
>>
>>