query problem

[Sweetie]

Hi

I have this table

COD CAT PROD
---------- ---------- ----------
300004 5 6
300004 5 7
300007 5 7
300007 5 6
300007 5 12
300008 5 6
300008 5 7
300008 5 8

I need to write a qeury which returns me cod 30008 only, that is prod is 6 and 8 and cat is 5, I have tried some queries but all returns more results than I need. Anyone know how can I accomplish this?

[Mnemonical]

like this?

SELECT * FROM TABLE
WHERE COD = 300008 AND PROD = 6 AND CAT = 5;




F.

[Sweetie]

no... because I dont know the cod, I only know prod and cat!
I found solution anywayz

select cod from product where cat=5 and prod=8
intersect
select cod from product where cat=5 and prod=6

[Shestakov]

select distinct cod from product where cat=5 and prod=8 ;