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mysql数据库去除重复数据

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2016-06-06 09:33:471201browse

mysqlsql

现在存在一个比赛信息 数据表(matchInfo),里面的字段有
id,MatchName,MatchTime,master,guest,现在是因为写入数据库的时候会出现重复数据,请问一下应该怎么过滤?sql语句怎么写?图片说明

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