sql
SELECT * FROM info GROUP BY id ORDER BY id
先 GROUP BY id 再 ORDER BY id
SELECT p.id FROM info p ORDER BY p.id LIMIT 1,2
默认升序
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sql
SELECT * FROM info GROUP BY id ORDER BY id
先 GROUP BY id 再 ORDER BY id
SELECT p.id FROM info p ORDER BY p.id LIMIT 1,2
默认升序
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