mysql將數據按天,周,半月,月分組

最近有個需求,要求查出今天,一週,15天,一個月的數據code created是時間戳class 按天分組:時間戳 SELECT SUM(income) AS income, FROM_UNIXTIME(created, '%Y-%m-%d') AS create_data FROM `income` GROUP BY create_data ORDER BY create_data DESC 按

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