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CREATE TABLE tbl ( id int, item varchar(30), discount varchar(30) ); INSERT INTO tbl VALUES (11, 'item1', 'PROMO'), (11, 'item1', 'PROMO'), (11, 'item1', 'MARKDOWN'), (11, 'item1', 'PROMO'), (11, 'item2', null), (11, 'item2', 'MARKDOWM'), (11, 'item2', null), (33, 'item1', 'PROMO'), (33, 'item1', 'PROMO'), (33, 'item1', 'PROMO'); SELECT id FROM tbl GROUP BY id HAVING MIN(discount) = 'PROMO' AND MAX(discount) = 'PROMO'
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