get specific row from mysql table with conditions

Question

I have below mentioned table:

ID     Value
KA-1   A
KA-1   B
KA-1   C
KA-1   D
KA-2   A
KA-2   C
KA-2   C
KA-2   D
KA-3   C
KA-3   B

I want to fetch those ID where there is at least one value corresponding to it is D But the same ID don't have value B .

Required Output:

ID
KA-2

Answer 1

An easy solution would be:

select distinct id from table
   where value='D' and id not in (select distinct id from table where value='B')

Answer 2

SELECT ID
FROM YOUR_TABLE
GROUP BY ID
HAVING SUM(VALUE='D')>=1 AND SUM(VALUE='B')=0;

See a working DEMO on SQL Fiddle .

Answer 3

You can try with exists and not exists:

select id 
from table1 as a
where exists (select *
              from table1 b
              where b.value='D' and b.id=a.id)
      and not exists (select *
              from table1 c
              where c.value='B' and c.id=a.id)