Hi,
I need a help to build a query.
Let's say there is a table orders (simplified, of course)
CREATE TABLE orders (
`item_id` int,
`org_id` int,
) ENGINE=MyISAM
item_id org_id
34 2607
34 2607
34 1520
36 2607
36 1520
36 8934
38 28
38 15
38 5
38 13
58 2607
58 2607
58 7295
58 1649
58 7295
58 1520
63 2607
63 2607
63 8871
63 7295
63 1520
65 15
65 20
95 1520
95 1520
95 7295
98 1520
98 7295
Need to select all (distinct) org_id they have item_id 34, 36, 58 and
63. All of them, not only some of them.
Result is org_id=2607 and org_id=1520
I can have it by
select org_id
from orders
where item_id in (34, 36, 58, 63)
group by org_id
having count(org_id)=4
but, I'm sure there is better solution?
Thanks for any help.
LAMP
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