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select id, hm, sj from (
select id, hm, sj,row_number()over(partition by id order by sj) n from table_name) where n=1
[code=SQL]SELECT t.id,t.hm,t.sj FROM (SELECT id,hm,sj,row_number() over(PARTITION BY ID ORDER BY sj) rn FROM test_tab) t
WHERE t.rn = 1
[/code]SELECT t.id,t.hm,t.sj FROM (SELECT id,hm,sj,row_number() over(PARTITION BY ID ORDER BY sj) rn FROM ) t
WHERE t.rn = 1
SELECT t.id,t.hm,t.sj FROM (SELECT id,hm,sj,row_number() over(PARTITION BY ID ORDER BY sj) rn FROM ) tselect id, hm, sj from (
select id, hm, sj,row_number()over(partition by id order by sj) n from table_name) where n=1