Multiple Rows Query

Question

Hi
Table A have 2 Columns Col1, Col2.
I want to select all distinct values of Col1 that have 2 corresponding value ‘X’ and ‘Y’ in Col2
create table TabA
Col1 varchar(10),
col2 char(1)
insert into TabA values ('tem1','X');
insert into TabA values ('tem1','Y');
insert into TabA values ('tem1','Z');
insert into TabA values ('tem2','X');
insert into TabA values ('tem2','Y');
insert into TabA values ('tem2','Z');
insert into TabA values ('tem3','X');
insert into TabA values ('tem3','Z');
insert into TabA values ('tem4','Y');
insert into TabA values ('tem4','Z');
insert into TabA values ('tem5','X');I need a query that only return tem1 & tem2 as they have both X, Y in col2.
Wishes

Answer 1

Check this.
select distinct col1 from (
select A.*, count(case when Col2 in ('X','Y') then 1
end) over ( partition by col1) cnt
from TabA A)
Where cnt = 2
Regards
RKWill not work for all cases:
SQL> select * from taba;
COL1       C
tem1       X
tem1       X
SQL> select distinct col1 from (
  2  select A.*, count(case when Col2 in ('X','Y') then 1 end) over ( partition by col1) cnt
  3  from TabA A)
  4  Where cnt = 2
  5  /
COL1
tem1