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[数据库]SQL中删除同一字段中重复的值


/////////////////////目地:ZDJZ_DIS中 name字段有重复的值,删除重复的值DELETE *FROM ZDJZ_DISWHERE NAME IN (select NAME from ZDJZ_DIS group by NAME having count(NAME) >1);上面的做法会删除掉所有的相同的值,包括你想要的,只要重复就删除DELETE *FROM ZDJZ_DISWHERE ID in (select min(ID) from ZDJZ_DIS group by NAME having count(NAME)>1);1有没有重复的某项值 2如果有的话,选择ID最小的那个结合起来DELETE *FROM ZDJZ_DISWHERE NAME IN (select NAME from ZDJZ_DIS group by NAME having count(NAME) >1)and ID not in (select min(ID) from ZDJZ_DIS group by NAME having count(NAME)>1);